Texas Instruments | TMPx75 Temperature Sensor With I2C and SMBus Interface in Industry Standard LM75 Form Factor and Pinout (Rev. L) | Datasheet | Texas Instruments TMPx75 Temperature Sensor With I2C and SMBus Interface in Industry Standard LM75 Form Factor and Pinout (Rev. L) Datasheet

Texas Instruments TMPx75 Temperature Sensor With I2C and SMBus Interface in Industry Standard LM75 Form Factor and Pinout (Rev. L) Datasheet
Sample &
Buy
Product
Folder
Support &
Community
Tools &
Software
Technical
Documents
TMP175, TMP75
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
TMPx75 Temperature Sensor With I2C and SMBus Interface in Industry Standard LM75
Form Factor and Pinout
1 Features
3 Description
•
•
•
The TMP75 and TMP175 devices are digital
temperature sensors ideal for negative temperature
coefficient (NTC) and positive temperature coefficient
(PTC) thermistor replacement. The devices offer a
typical accuracy of ±1°C without requiring calibration
or external component signal conditioning. Device
temperature sensors are highly linear and do not
require complex calculations or look-up tables to
derive the temperature. The on-chip 12-bit analog-todigital converter (ADC) offers resolutions down to
0.0625°C. The devices are available in the industrystandard LM75 SOIC-8 and MSOP-8 footprint.
1
•
•
•
•
•
TMP175: 27 Addresses
TMP75: 8 Addresses, NIST Traceable
Digital Output: SMBus™, Two-Wire, and I2C
Interface Compatibility
Resolution: 9 to 12 Bits, User-Selectable
Accuracy:
– ±1°C (Typical) from −40°C to +125°C
– ±2°C (Maximum) from −40°C to +125°C
Low Quiescent Current: 50-μA, 0.1-μA Standby
Wide Supply Range: 2.7 V to 5.5 V
Small 8-Pin MSOP and 8-Pin SOIC Packages
2 Applications
•
•
•
•
•
•
•
•
•
Power-Supply Temperature Monitoring
Computer Peripheral Thermal Protection
Notebook Computers
Cell Phones
Battery Management
Office Machines
Thermostat Controls
Environmental Monitoring and HVAC
Electro Mechanical Device Temperature
The TMP175 and TMP75 feature SMBus, two-wire,
and I2C interface compatibility. The TMP175 device
allows up to 27 devices on one bus. The TMP75
allows up to eight on one bus. The TMP175 and
TMP75 both feature an SMBus Alert function.
The TMP175 and TMP75 devices are ideal for
extended temperature measurement in a variety of
communication, computer, consumer, environmental,
industrial, and instrumentation applications.
The TMP175 and TMP75 devices are specified for
operation over a temperature range of −40°C to
+125°C.
The TMP75 production units are 100% tested against
sensors that are NIST traceable and are verified with
equipment that are NIST traceable through ISO/IEC
17025 accredited calibrations.
Device Information(1)
PART NUMBER
TMP175 and TMP75 Internal Block Diagram
TMPx75
PACKAGE
BODY SIZE (NOM)
SOIC (8)
4.90 mm × 3.91 mm
VSSOP (8)
3.00 mm × 3.00 mm
Temperature
SDA
SCL
1
Diode
Temp.
Sensor
2
GND
6
OSC
V+
A0
Serial
Interface
3
4
8
7
ΔΣ
ADC
ALERT
Control
Logic
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Config.
and Temp.
Register
5
A1
A2
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
TMP175, TMP75
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
www.ti.com
Table of Contents
1
2
3
4
5
6
7
Features ..................................................................
Applications ...........................................................
Description .............................................................
Revision History.....................................................
Pin Configuration and Functions .........................
Specifications.........................................................
1
1
1
2
3
4
6.1
6.2
6.3
6.4
6.5
6.6
6.7
4
4
4
4
5
6
7
Absolute Maximum Ratings ......................................
ESD Ratings ............................................................
Recommended Operating Conditions.......................
Thermal Information .................................................
Electrical Characteristics...........................................
Timing Requirements ................................................
Typical Characteristics ..............................................
Detailed Description .............................................. 8
7.1 Overview ................................................................... 8
7.2 Functional Block Diagram ......................................... 8
7.3 Feature Description................................................... 9
7.4 Device Functional Modes........................................ 15
7.5 Programming .......................................................... 16
8
Application and Implementation ........................ 21
8.1 Application Information............................................ 21
8.2 Typical Application ................................................. 21
9 Power Supply Recommendations...................... 23
10 Layout................................................................... 23
10.1 Layout Guidelines ................................................. 23
10.2 Layout Example .................................................... 23
11 Device and Documentation Support ................. 24
11.1
11.2
11.3
11.4
11.5
Related Links ........................................................
Community Resources..........................................
Trademarks ...........................................................
Electrostatic Discharge Caution ............................
Glossary ................................................................
24
24
24
24
24
12 Mechanical, Packaging, and Orderable
Information ........................................................... 24
4 Revision History
Changes from Revision K (April 2015) to Revision L
Page
•
Changed second Features bullet: added NIST Traceable to TMP75 device ........................................................................ 1
•
Added last paragraph to Description section ......................................................................................................................... 1
•
Deleted Simplified Schematic figure from page 1 ................................................................................................................. 1
•
Changed the Timing Requirements table .............................................................................................................................. 6
•
Changed Figure 6 ................................................................................................................................................................ 13
Changes from Revision J (December 2007) to Revision K
Page
•
Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section. ................................................................................................ 1
•
Updated parameters in the Timing Requirements table. ....................................................................................................... 6
2
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
TMP175, TMP75
www.ti.com
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
5 Pin Configuration and Functions
DGK and D Packages
8-Pin VSSOP and SOIC
Top View
SDA
1
8
V+
SCL
2
7
A0
ALERT
3
6
A1
GND
4
5
A2
NOTE: Pin 1 is determined by orienting the package marking as indicated in the diagram.
Pin Functions
PIN
NO.
NAME
I/O
DESCRIPTION
1
SDA
I/O
Serial data. Open-drain output; requires a pullup resistor.
2
SCL
I
Serial clock. Open-drain output; requires a pullup resistor.
3
ALERT
O
Overtemperature alert. Open-drain output; requires a pullup resistor.
4
GND
—
Ground
5
A2
6
A1
7
A0
8
V+
I
Address select. Connect to GND, V+ or (for the TMP175 device only) leave these pins floating.
I
Supply voltage, 2.7 V to 5.5 V
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
3
TMP175, TMP75
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
www.ti.com
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1)
MIN
MAX
UNIT
7
V
Power supply, V+
Input voltage
(2)
–0.5
7
V
10
mA
127
°C
150
°C
130
°C
Input current
Operating temperature
–55
Junction temperature, TJ
Storage temperature, Tstg
(1)
(2)
–60
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
Input voltage rating applies to all TMP175 and TMP75 input voltages.
6.2 ESD Ratings
VALUE
V(ESD)
(1)
(2)
Electrostatic discharge
Human body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1)
±4000
Charged device model (CDM), per JEDEC specification JESD22-C101 (2)
±1000
Machine model (MM)
±300
UNIT
V
JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN
NOM
MAX
UNIT
Supply voltage
2.7
5.5
V
Operating free-air temperature, TA
–40
125
°C
6.4 Thermal Information
TMP175, TMP75
THERMAL METRIC (1)
DGK (SOIC),
D (VSSOP)
UNIT
8 PINS
RθJA
Junction-to-ambient thermal resistance
185
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
76.1
°C/W
RθJB
Junction-to-board thermal resistance
106.4
°C/W
ψJT
Junction-to-top characterization parameter
14.1
°C/W
ψJB
Junction-to-board characterization parameter
104.8
°C/W
(1)
4
For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
TMP175, TMP75
www.ti.com
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
6.5 Electrical Characteristics
at TA = −40°C to +125°C and V+ = 2.7 V to 5.5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TMP175
MIN
TYP
TMP75
MAX
MIN
TYP
MAX
UNIT
TEMPERATURE INPUT
Range
Accuracy (temperature error)
–40
−25°C to +85°C
−40°C to +125°C
Accuracy (temperature error)
vs supply
Resolution (1)
Selectable
125
–40
125
±0.5
±1.5
±0.5
±2
±1
±2
±1
±3
0.2
±0.5
0.2
±0.5
0.0625
0.0625
°C
°C
°C/V
°C
DIGITAL INPUT/OUTPUT
Input capacitance
3
VIH
High-level input logic
VIL
Low-level input logic
IIN
Leakage input current
0 V ≤ VIN ≤ 6 V
3
pF
0.7(V+)
6
0.7(V+)
6
−0.5
0.3(V+)
−0.5
0.3(V+)
V
1
µA
1
Input voltage hysteresis
SCL and SDA pins
VOL
Low-level output logic SDA
IOL = 3 mA
0
0.15
500
0.4
0
0.15
0.4
VOL
Low-level output logic ALERT
IOL = 4 mA
0
0.15
0.4
0
0.15
0.4
Resolution
Selectable
9 to 12
9 bits
Conversion time
500
mV
9 to 12
27.5
37.5
27.5
55
75
55
75
11 bits
110
150
110
150
220
300
220
300
54
74
25
54
74
5.5
2.7
12 bits
25
V
V
Bits
10 bits
Timeout time
V
37.5
ms
POWER SUPPLY
Operating range
2.7
Serial bus inactive
IQ
ISD
Quiescent current
Shutdown current
50
85
5.5
50
Serial bus active, SCL frequency = 400 kHz
100
100
Serial bus active, SCL frequency = 3.4 MHz
410
410
Serial bus inactive
0.1
Serial bus active, SCL frequency = 400 kHz
60
60
Serial bus active, SCL frequency = 3.4 MHz
380
380
3
0.1
V
85
µA
3
µA
TEMPERATURE RANGE
(1)
Specified range
–40
125
–40
125
°C
Operating range
–55
127
–55
127
°C
Specified for 12-bit resolution.
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
5
TMP175, TMP75
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
www.ti.com
6.6 Timing Requirements
see the Timing Diagrams and Two-Wire Timing Diagrams sections for additional information
FAST MODE
f(SCL)
SCL operating frequency
t(BUF)
Bus-free time between STOP and START
conditions
t(HDSTA)
Hold time after repeated START condition.
After this period, the first clock is generated.
t(SUSTA)
Repeated START condition setup time
t(SUSTO)
STOP condition setup time
t(HDDAT)
Data hold time
t(SUDAT)
Data setup time
V+
See the Timing
Diagrams section
HIGH-SPEED
MODE
UNIT
MIN
MAX
MIN
MAX
0.001
0.4
0.001
2.38
1300
160
ns
600
160
ns
600
160
ns
600
160
4
900
4
ns
120
10
ns
1300
280
ns
600
60
ns
t(LOW)
SCL clock low period
t(HIGH)
SCL clock high period
See the Timing
Diagrams section
tFD
Data fall time
See the Timing
Diagrams section
300
150
See the Two-Wire
Timing Diagrams section
300
40
tFC
6
Clock rise time
Clock fall time
SCLK ≤ 100 kHz, see
the Timing Diagrams
section
See the Two-Wire
Timing Diagrams section
Submit Documentation Feedback
ns
100
V+, see the Timing
Diagrams section
tRC
MHz
ns
ns
1000
300
40
ns
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
TMP175, TMP75
www.ti.com
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
6.7 Typical Characteristics
at TA = 25°C and V+ = 5 V (unless otherwise noted)
85
1.0
0.9
75
0.8
0.7
0.6
V+ = 5 V
ISD (μA)
IQ (μA)
65
55
0.5
0.4
0.3
45
0.2
V+ = 2..7V
0.1
35
0.0
Serial Bus Inactive
−0.1
25
−55
−35
−15
5
25
45
65
85
105
125 130
−55
−35
−15
5
Temperature (°C)
25
45
65
85
105 125 130
Te mperature (°C)
Figure 1. Quiescent Current vs Temperature
Figure 2. Shutdown Current vs Temperature
300
2.0
250
200
Temperature Error (° C)
Conversion Time (ms)
1.5
V+ = 5 V
V+ = 2..7 V
150
1.0
0.5
0.0
−0.5
−1.0
−1.5
3 typical units 12-bit resolution
12-bit resolution
−2.0
−55
100
−55
−35
−15
5
25
45
65
85
105
125 130
−35
−15
5
25
45
65
85
105
125 130
Te mperature (°C)
Temperature (°C)
Figure 3. Conversion Time vs Temperature
Figure 4. Temperature Accuracy vs Temperature
500
Hs MODE
FAST MODE
450
400
I Q (μA)
350
300
250
200
125°C
150
25°C
100
50
−55°C
0
1k
10k
100k
1M
1 0M
Frequency (Hz)
Figure 5. Quiescent Current With Bus Activity vs Temperature
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
7
TMP175, TMP75
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
www.ti.com
7 Detailed Description
7.1 Overview
The TMP175 and TMP75 devices are digital temperature sensors that are optimal for thermal management and
thermal protection applications. The TMP175 and TMP75 are two-wire, SMBus, and I2C interface-compatible.
The devices are specified over a temperature range of −40°C to +125°C. The Functional Block Diagram section
shows an internal block diagram of TMP175 and TMP75 devices.
The temperature sensor in the TMP175 and TMP75 devices is the device itself. Thermal paths run through the
package leads as well as the plastic package. The package leads provide the primary thermal path because of
the lower thermal resistance of the metal.
7.2 Functional Block Diagram
Temperature
SDA
SCL
1
Diode
Temp.
Sensor
2
GND
8
6
OSC
V+
A0
Serial
Interface
3
4
8
7
ΔΣ
ADC
ALERT
Control
Logic
Config.
and Temp.
Register
Submit Documentation Feedback
5
A1
A2
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
TMP175, TMP75
www.ti.com
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
7.3 Feature Description
7.3.1 Digital Temperature Output
The digital output from each temperature measurement conversion is stored in the read-only Temperature
register. The Temperature register of the TMP175 or TMP75 is a 12-bit read-only register that stores the output
of the most recent conversion. Two bytes must be read to obtain data, and are listed in Table 6 and Table 7. The
first 12 bits are used to indicate temperature with all remaining bits equal to zero. Data format for temperature is
listed in Table 1. Negative numbers are represented in binary twos complement format. Following power-up or
reset, the Temperature register reads 0°C until the first conversion is complete.
The user can obtain 9, 10, 11, or 12 bits of resolution by addressing the Configuration register and setting the
resolution bits accordingly. For 9-, 10-, or 11-bit resolution, the most significant bits (MSBs) in the Temperature
register are used with the unused least significant bits (LSBs) set to zero.
Table 1. Temperature Data Format
DIGITAL OUTPUT
TEMPERATURE
(°C)
BINARY
HEX
128
0111 1111 1111
7FF
127.9375
0111 1111 1111
7FF
100
0110 0100 0000
640
80
0101 0000 0000
500
75
0100 1011 0000
4B0
50
0011 0010 0000
320
25
0001 1001 0000
190
0.25
0000 0000 0100
004
0
0000 0000 0000
000
–0.25
1111 1111 1100
FFC
–25
1110 0111 0000
E70
–55
1100 1001 0000
C90
7.3.2 Serial Interface
The TMP175 and TMP75 operate only as slave devices on the SMBus, two-wire, and I2C interface-compatible
bus. Connections to the bus are made through the open-drain I/O lines SDA and SCL. The SDA and SCL pins
feature integrated spike suppression filters and Schmitt triggers to minimize the effects of input spikes and bus
noise. The TMP175 and TMP75 support the transmission protocol for fast (up to 400 kHz) and high-speed (up to
2 MHz) modes. All data bytes are transmitted MSB first.
7.3.2.1 Bus Overview
The device that initiates the transfer is called a master, and the devices controlled by the master are slaves. The
bus must be controlled by a master device that generates the serial clock (SCL), controls the bus access, and
generates the START and STOP conditions.
To address a specific device, a START condition is initiated, indicated by pulling the data line (SDA) from a high
to low logic level when SCL is high. All slaves on the bus shift in the slave address byte, with the last bit
indicating whether a read or write operation is intended. During the ninth clock pulse, the slave being addressed
responds to the master by generating an Acknowledge and pulling SDA low.
Data transfer is then initiated and sent over eight clock pulses followed by an Acknowledge bit. During data
transfer SDA must remain stable when SCL is high because any change in SDA when SCL is high is interpreted
as a control signal.
When all data are transferred, the master generates a STOP condition indicated by pulling SDA from low to high
when SCL is high.
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
9
TMP175, TMP75
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
www.ti.com
7.3.2.2 Serial Bus Address
To communicate with the TMP175 and TMP75, the master must first address slave devices through a slave
address byte. The slave address byte consists of seven address bits, and a direction bit indicating the intent of
executing a read or write operation.
The TMP175 features three address pins to allow up to 27 devices to be addressed on a single bus interface.
Table 2 describes the pin logic levels used to properly connect up to 27 devices. A 1 indicates the pin is
connected to the supply (VCC); a 0 indicates the pin is connected to GND; float indicates the pin is left
unconnected. The state of pins A0, A1, and A2 is sampled on every bus communication and must be set prior to
any activity on the interface.
The TMP75 features three address pins allowing up to eight devices to be connected per bus. Pin logic levels
are described in Table 3. The address pins of the TMP175 and TMP75 are read after reset, at start of
communication, or in response to a two-wire address acquire request. After the state of the pins are read, the
address is latched to minimize power dissipation associated with detection.
Table 2. Address Pins and Slave Addresses for the TMP175
10
A2
A1
A0
SLAVE ADDRESS
0
0
0
1001000
0
0
1
1001001
0
1
0
1001010
0
1
1
1001011
1
0
0
1001100
1
0
1
1001101
1
1
0
1001110
1
1
1
1001111
Float
0
0
1110000
Float
0
Float
1110001
Float
0
1
1110010
Float
1
0
1110011
Float
1
Float
1110100
Float
1
1
1110101
Float
Float
0
1110110
Float
Float
1
1110111
0
Float
0
0101000
0
Float
1
0101001
1
Float
0
0101010
1
Float
1
0101011
0
0
Float
0101100
0
1
Float
0101101
1
0
Float
0101110
1
1
Float
0101111
0
Float
Float
0110101
1
Float
Float
0110110
Float
Float
Float
0110111
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
TMP175, TMP75
www.ti.com
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
Table 3. Address Pins and Slave Addresses for the TMP75
A2
A1
A0
SLAVE ADDRESS
0
0
0
1001000
0
0
1
1001001
0
1
0
1001010
0
1
1
1001011
1
0
0
1001100
1
0
1
1001101
1
1
0
1001110
1
1
1
1001111
7.3.2.3 Writing and Reading to the TMP175 and TMP75
Accessing a particular register on the TMP175 and TMP75 devices is accomplished by writing the appropriate
value to the Pointer register. The value for the Pointer register is the first byte transferred after the slave address
byte with the R/W bit low. Every write operation to the TMP175 and TMP75 requires a value for the Pointer
register (see Figure 7).
When reading from the TMP175 and TMP75 devices, the last value stored in the Pointer register by a write
operation is used to determine which register is read by a read operation. To change the register pointer for a
read operation, a new value must be written to the Pointer register. This action is accomplished by issuing a
slave address byte with the R/W bit low, followed by the Pointer register byte. No additional data are required.
The master can then generate a START condition and send the slave address byte with the R/W bit high to
initiate the read command. See Figure 9 for details of this sequence. If repeated reads from the same register
are desired, the Pointer register bytes do not have to be continually sent because the TMP175 and TMP75
remember the Pointer register value until the value is changed by the next write operation.
Register bytes are sent MSB first, followed by the LSB.
7.3.2.4 Slave Mode Operations
The TMP175 and TMP75 can operate as a slave receiver or slave transmitter.
7.3.2.4.1 Slave Receiver Mode
The first byte transmitted by the master is the slave address, with the R/W bit low. The TMP175 or TMP75 then
acknowledges reception of a valid address. The next byte transmitted by the master is the Pointer register. The
TMP175 or TMP75 then acknowledges reception of the Pointer register byte. The next byte or bytes are written
to the register addressed by the Pointer register. The TMP175 and TMP75 acknowledge reception of each data
byte. The master can terminate data transfer by generating a START or STOP condition.
7.3.2.4.2 Slave Transmitter Mode
The first byte is transmitted by the master and is the slave address, with the R/W bit high. The slave
acknowledges reception of a valid slave address. The next byte is transmitted by the slave and is the most
significant byte of the register indicated by the Pointer register. The master acknowledges reception of the data
byte. The next byte transmitted by the slave is the least significant byte. The master acknowledges reception of
the data byte. The master can terminate data transfer by generating a Not-Acknowledge on reception of any data
byte, or generating a START or STOP condition.
7.3.2.5 SMBus Alert Function
The TMP175 and TMP75 support the SMBus Alert function. When the TMP75 and TMP175 are operating in
interrupt mode (TM = 1), the ALERT pin of the TMP75 or TMP175 can be connected as an SMBus Alert signal.
When a master senses that an ALERT condition is present on the ALERT line, the master sends an SMBus Alert
command (00011001) on the bus. If the ALERT pin of the TMP75 or TMP175 is active, the devices acknowledge
the SMBus Alert command and respond by returning its slave address on the SDA line. The eighth bit (LSB) of
the slave address byte indicates if the temperature exceeding THIGH or falling below TLOW caused the ALERT
condition. This bit is high if the temperature is greater than or equal to THIGH. This bit is low if the temperature is
less than TLOW. See Figure 10 for details of this sequence.
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
11
TMP175, TMP75
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
www.ti.com
If multiple devices on the bus respond to the SMBus Alert command, arbitration during the slave address portion
of the SMBus Alert command determine which device clears its ALERT status. If the TMP75 or TMP175 wins the
arbitration, its ALERT pin becomes inactive at the completion of the SMBus Alert command. If the TMP75 or
TMP175 loses the arbitration, its ALERT pin remains active.
7.3.2.6 General Call
The TMP175 and TMP75 respond to a two-wire general call address (0000000) if the eighth bit is 0. The device
acknowledges the general call address and responds to commands in the second byte. If the second byte is
00000100, the TMP175 and TMP75 latch the status of their address pins, but do not reset. If the second byte is
00000110, the TMP175 and TMP75 latch the status of their address pins and reset their internal registers to their
power-up values.
7.3.2.7 High-Speed Mode
In order for the two-wire bus to operate at frequencies above 400 kHz, the master device must issue an Hs-mode
master code (00001XXX) as the first byte after a START condition to switch the bus to high-speed operation.
The TMP175 and TMP75 devices do not acknowledge this byte, but do switch their input filters on SDA and SCL
and their output filters on SDA to operate in Hs-mode, allowing transfers at up to 2 MHz. After the Hs-mode
master code is issued, the master transmits a two-wire slave address to initiate a data transfer operation. The
bus continues to operate in Hs-mode until a STOP condition occurs on the bus. Upon receiving the STOP
condition, the TMP175 and TMP75 switch the input and output filter back to fast-mode operation.
7.3.2.8 Time-out Function
The TMP175 resets the serial interface if either SCL or SDA is held low for 54 ms (typical) between a START
and STOP condition. The TMP175 releases the bus if it is pulled low and waits for a START condition. To avoid
activating the time-out function, a communication speed of at least 1 kHz must be maintained for the SCL
operating frequency.
7.3.3 Timing Diagrams
The TMP175 and TMP75 devices are two-wire, SMBus, and I2C interface-compatible. Figure 6 to Figure 10
describe the various operations on the TMP175. The following list provides bus definitions. Parameters for
Figure 6 are defined in the Timing Requirements.
Bus Idle: Both SDA and SCL lines remain high.
Start Data Transfer: A change in the state of the SDA line, from high to low when the SCL line is high defines a
START condition. Each data transfer is initiated with a START condition.
Stop Data Transfer: A change in the state of the SDA line from low to high when the SCL line is high defines a
STOP condition. Each data transfer is terminated with a repeated START or STOP condition.
Data Transfer: The number of data bytes transferred between a START and a STOP condition is not limited and
is determined by the master device. The receiver acknowledges the transfer of data.
Acknowledge: Each receiving device, when addressed, is obliged to generate an Acknowledge bit. A device
that acknowledges must pull down the SDA line during the Acknowledge clock pulse in such a way that the SDA
line is stable low during the high period of the Acknowledge clock pulse. Setup and hold times must be taken into
account. On a master receive, the termination of the data transfer can be signaled by the master generating a
Not-Acknowledge on the last byte that is transmitted by the slave.
12
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
TMP175, TMP75
www.ti.com
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
7.3.4 Two-Wire Timing Diagrams
t(LOW)
tF
tR
t(HDSTA)
SCL
t(HDSTA)
t(HIGH)
t(SUSTO)
t(SUSTA)
t(HDDAT)
t(SUDAT)
SDA
t(BUF)
P
S
S
P
Figure 6. Two-Wire Timing Diagram
1
9
9
1
…
SCL
SDA
1
0
0
1
A2
A1
A0
R/W
Start By
Master
0
0
0
0
0
0
P1
…
P0
ACK By
TMP75
ACK By
TMP75
Frame 2Pointer Register Byte
Frame 1Two- Wire Slave Address Byte
1
9
1
9
SCL
(Continued)
SDA
(Continued)
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
ACK By
TMP75
ACK By
TMP75
Stop By
Master
Frame 4Data Byte 2
Frame 3Data Byte 1
Figure 7. Two-Wire Timing Diagram for the TMP75 Write Word Format
1
9
1
9
…
SCL
SDA
A6
A5
A4
A3
A2
A1
A0
R/W
Start By
Master
0
0
0
0
0
0
P1
…
P0
ACK By
TMP175
ACK By
TMP175
Frame 1 Two-Wire Slave Address Byte
Frame 2 Pointer Register Byte
1
9
1
9
SCL
(Continued)
SDA
(Continued)
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
ACK By
TMP175
Frame 3 Data Byte 1
D2
D1
D0
ACK By
TMP175
Stop By
Master
Frame 4 Data Byte 2
Figure 8. Two-Wire Timing Diagram for the TMP175 Write Word Format
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
13
TMP175, TMP75
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
www.ti.com
1
9
1
9
…
SCL
SDA
1
0
0
1
0
0
0
Start By
Master
R/W
0
0
0
0
0
0
P1
ACK By
TMP175 or TMP75
…
P0
ACK By
TMP175 or TMP75
Frame 2 Pointer Register Byte
Frame 1 Two-Wire Slave Address Byte
1
9
1
9
…
SCL
(Continued)
SDA
(Continued)
1
0
0
0
1
0
0
Start By
Master
D7
R/W
D6
D5
D4
D3
ACK By
TMP175 or TMP75
D1
…
D0
From
TMP175or TMP75
Frame 3 Two-Wire Slave Address Byte
1
D2
ACK By
Master
Frame 4 Data Byte 1Read Register
9
SCL
(Continued)
SDA
(Continued)
D7
D6
D5
D4
D3
D2
D1
D0
From
TMP175 or TMP75
ACK By
Master
Stop By
Master
Frame 5 Data Byte 2 Read Register
NOTE: Address Pins A0, A1, A 2 =0
Figure 9. Two-Wire Timing Diagram for Read Word Format
ALERT
1
9
1
9
SCL
SDA
0
0
0
Start By
Master
1
1
0
0
R/W
1
0
0
ACK By
TMP175 or TMP75
Frame 1 SMBus ALERT Response Address Byte
1
0
0
0
S ta tu s
From
NACK By
TMP175 or TMP75 Master
Stop By
Master
Frame 2 Slave Address Byte
NOTE: Address Pins A0, A1, A2 =0
Figure 10. Timing Diagram for SMBus ALERT
14
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
TMP175, TMP75
www.ti.com
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
7.4 Device Functional Modes
7.4.1 Shutdown Mode (SD)
The shutdown mode of the TMP175 and TMP75 devices lets the user save maximum power by shutting down all
device circuitry other than the serial interface, which reduces current consumption to typically less than 0.1 μA.
Shutdown mode is enabled when the SD bit is 1; the device shuts down when the current conversion is
completed. When SD is equal to 0, the device maintains a continuous conversion state.
7.4.2 One-shot (OS)
The TMP175 and TMP75 feature a one-shot temperature measurement mode. When the device is in shutdown
mode, writing 1 to the OS bit starts a single temperature conversion. The device returns to the shutdown state at
the completion of the single conversion. This feature is useful to reduce power consumption in the TMP175 and
TMP75 when continuous temperature monitoring is not required. When the configuration register is read, the OS
always reads zero.
7.4.3 Thermostat Mode (TM)
The thermostat mode bit of the TMP175 and TMP75 indicates to the device whether to operate in comparator
mode (TM = 0) or interrupt mode (TM = 1). For more information on comparator and interrupt modes, see the
High and Low Limit Registers section.
7.4.3.1 Comparator Mode (TM = 0)
In comparator mode (TM = 0), the ALERT pin is activated when the temperature equals or exceeds the value in
the T(HIGH) register and remains active until the temperature falls below the value in the T(LOW)register. For more
information on the comparator mode, see the High and Low Limit Registers section.
7.4.3.2 Interrupt Mode (TM = 1)
In interrupt mode (TM = 1), the ALERT pin is activated when the temperature exceeds T(HIGH) or goes below
T(LOW) registers. The ALERT pin is cleared when the host controller reads the temperature register. For more
information on the interrupt mode, see the High and Low Limit Registers section.
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
15
TMP175, TMP75
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
www.ti.com
7.5 Programming
7.5.1 Pointer Register
Figure 11 shows the internal register structure of the TMP175 and TMP75. The 8-bit Pointer register of the
devices is used to address a given data register. The Pointer register uses the two LSBs to identify which of the
data registers must respond to a read or write command. Table 4 identifies the bits of the Pointer register byte.
Table 5 describes the pointer address of the registers available in the TMP175 and TMP75. Power-up reset
value of P1/P0 is 00.
Pointer
Register
Temperature
Register
SCL
Configuration
Register
I/O
Control
Interface
TLOW
Register
SDA
THIGH
Register
Figure 11. Internal Register Structure of the TMP175 and TMP75
7.5.1.1 Pointer Register Byte (pointer = N/A) [reset = 00h]
Table 4. Pointer Register Byte
P7
P6
P5
P4
P3
P2
0
0
0
0
0
0
P1
P0
Register Bits
7.5.1.2 Pointer Addresses of the TMP175
Table 5. Pointer Addresses of the TMP175 and TMP75
16
P1
P0
0
0
TYPE
REGISTER
0
1
R/W
Configuration register
1
0
R/W
TLOW register
1
1
R/W
THIGH register
R only, Temperature register
default
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
TMP175, TMP75
www.ti.com
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
7.5.2 Temperature Register
The Temperature register of the TMP175 or TMP75 is a 12-bit, read-only register that stores the output of the
most recent conversion. Two bytes must be read to obtain data, and are described in Table 6 and Table 7. Byte
1 is the most significant byte, followed by byte 2, the least significant byte. The first 12 bits are used to indicate
temperature, with all remaining bits equal to zero. The least significant byte does not have to be read if that
information is not needed. Following power-up or reset value, the Temperature register reads 0°C until the first
conversion is complete.
Table 6. Byte 1 of the Temperature Register
D7
D6
D5
D4
D3
D2
D1
D0
T11
T10
T9
T8
T7
T6
T5
T4
Table 7. Byte 2 of the Temperature Register
D7
D6
D5
D4
D3
D2
D1
D0
T3
T2
T1
T0
0
0
0
0
7.5.3 Configuration Register
The Configuration register is an 8-bit read/write register used to store bits that control the operational modes of
the temperature sensor. Read and write operations are performed MSB first. The format of the Configuration
register for the TMP175 and TMP75 is shown in Table 8, followed by a breakdown of the register bits. The
power-up or reset value of the Configuration register are all bits equal to 0.
Table 8. Configuration Register Format
BYTE
D7
D6
D5
D4
D3
D2
D1
D0
1
OS
R1
R0
F1
F0
POL
TM
SD
7.5.3.1 Shutdown Mode (SD)
The shutdown mode of the TMP175 and TMP75 allows the user to save maximum power by shutting down all
device circuitry other than the serial interface, which reduces current consumption to typically less than 0.1 μA.
Shutdown mode is enabled when the SD bit is 1; the device shuts down when the current conversion is
completed. When SD is equal to 0, the device maintains a continuous conversion state.
7.5.3.2 Thermostat Mode (TM)
The thermostat mode bit of the TMP175 and TMP75 indicates to the device whether to operate in comparator
mode (TM = 0) or interrupt mode (TM = 1). For more information on comparator and interrupt modes, see the
High and Low Limit Registers section.
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
17
TMP175, TMP75
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
www.ti.com
7.5.3.3 Polarity (POL)
The polarity bit of the TMP175 lets the user adjust the polarity of the ALERT pin output. If the POL bit is set to 0
(default), the ALERT pin becomes active low. When POL bit is set to 1, the ALERT pin becomes active high and
the state of the ALERT pin is inverted. The operation of the ALERT pin in various modes is illustrated in
Figure 12.
THIGH
Measured
Temperature
TLOW
TMP75/TMP175 ALERT PIN
(Compara tor Mode)
POL =0
TMP75/TMP175 ALERT PIN
(Interrupt Mode)
POL =0
TMP75/TMP175 ALERT PIN
(Compara tor Mode)
POL =1
TMP75/TMP175 ALERT PIN
(Interrupt Mode)
POL =1
Read
Read
Read
Time
Figure 12. Output Transfer Function Diagrams
7.5.3.4 Fault Queue (F1/F0)
A fault condition is defined as when the measured temperature exceeds the user-defined limits set in the THIGH
and TLOW registers. Additionally, the number of fault conditions required to generate an alert may be programmed
using the fault queue. The fault queue is provided to prevent a false alert as a result of environmental noise. The
fault queue requires consecutive fault measurements in order to trigger the alert function. Table 9 defines the
number of measured faults that can be programmed to trigger an alert condition in the device. For THIGH and
TLOW register format and byte order, see the High and Low Limit Registers section.
Table 9. Fault Settings of the TMP175 and TMP75
18
F1
F0
CONSECUTIVE FAULTS
0
0
1
0
1
2
1
0
4
1
1
6
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
TMP175, TMP75
www.ti.com
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
7.5.3.5 Converter Resolution (R1/R0)
The converter resolution bits control the resolution of the internal ADC converter. This control allows the user to
maximize efficiency by programming for higher resolution or faster conversion time. Table 10 identifies the
resolution bits and the relationship between resolution and conversion time.
Table 10. Resolution of the TMP175 and TMP75
RESOLUTION
CONVERSION TIME
(Typical)
0
9 bits (0.5°C)
27.5 ms
1
10 bits (0.25°C)
55 ms
0
11 bits (0.125°C)
110 ms
1
12 bits (0.0625°C)
220 ms
R1
R0
0
0
1
1
7.5.3.6 One-Shot (OS)
The TMP175 and TMP75 feature a one-shot temperature measurement mode. When the device is in shutdown
mode, writing a 1 to the OS bit starts a single temperature conversion. The device returns to the shutdown state
at the completion of the single conversion. This feature is useful to reduce power consumption in the TMP175
and TMP75 when continuous temperature monitoring is not required. When the configuration register is read, the
OS always reads zero.
7.5.4 High and Low Limit Registers
In comparator mode (TM = 0), the ALERT pin of the TMP175 and TMP75 becomes active when the temperature
equals or exceeds the value in THIGH and generates a consecutive number of faults according to fault bits F1 and
F0. The ALERT pin remains active until the temperature falls below the indicated TLOW value for the same
number of faults.
In interrupt mode (TM = 1), the ALERT pin becomes active when the temperature equals or exceeds THIGH for a
consecutive number of fault conditions. The ALERT pin remains active until a read operation of any register
occurs, or the device successfully responds to the SMBus Alert response address. The ALERT pin is also
cleared if the device is placed in shutdown mode. When the ALERT pin is cleared, it only become active again
by the temperature falling below TLOW. When the temperature falls below TLOW, the ALERT pin becomes active
and remains active until cleared by a read operation of any register or a successful response to the SMBus Alert
response address. When the ALERT pin is cleared, the above cycle repeats, with the ALERT pin becoming
active when the temperature equals or exceeds THIGH. The ALERT pin can also be cleared by resetting the
device with the general call reset command. This action also clears the state of the internal registers in the
device by returning the device to comparator mode (TM = 0).
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
19
TMP175, TMP75
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
www.ti.com
Both operational modes are represented in Figure 12. Table 11, Table 12, Table 13, and Table 14 describe the
format for the THIGH and TLOW registers. The most significant byte is sent first, followed by the least significant
byte. Power-up reset values for THIGH and TLOW are:
THIGH = 80°C and TLOW = 75°C
The format of the data for THIGH and TLOW is the same as for the Temperature register.
Table 11. Byte 1 of the THIGH Register
D7
D6
D5
D4
D3
D2
D1
D0
H11
H10
H9
H8
H7
H6
H5
H4
Table 12. Byte 2 of the THIGH Register
D7
D6
D5
D4
D3
D2
D1
D0
H3
H2
H1
H0
0
0
0
0
Table 13. Byte 1 of the TLOW Register
BYTE
D7
D6
D5
D4
D3
D2
D1
D0
1
L11
L10
L9
L8
L7
L6
L5
L4
Table 14. Byte 2 of the TLOW Register
D7
D6
D5
D4
D3
D2
D1
D0
L3
L2
L1
L0
0
0
0
0
All 12 bits for the Temperature, THIGH, and TLOW registers are used in the comparisons for the ALERT function for
all converter resolutions. The three LSBs in THIGH and TLOW can affect the ALERT output even if the converter is
configured for 9-bit resolution.
20
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
TMP175, TMP75
www.ti.com
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
8 Application and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
The TMP175 and TMP75 devices are used to measure the PCB temperature of the location it is mounted. The
TMP175 and TMP75 feature SMBus, two-wire, and I2C interface compatibility, with the TMP175 allowing up to 27
devices on one bus and the TMP75 allowing up to eight devices on one bus. The TMP175 and TMP75 both
feature an SMBus Alert function. The TMP175 and TMP75 require no external components for operation except
for pullup resistors on SCL, SDA, and ALERT, although a 0.1-μF bypass capacitor is recommended.
The sensing device of the TMP175 and TMP75 devices is the device itself. Thermal paths run through the
package leads as well as the plastic package. The lower thermal resistance of metal causes the leads to provide
the primary thermal path.
8.2 Typical Application
Supply Voltage
2.7V to 5.5V
Supply Bypass
Capacitor
Pullup Resistors
0.01 µF
5k
1
Two-Wire
Host Controller
2
3
4
SDA
TMP175,
TMP75
V+
SCL
A0
ALERT
A1
GND
A2
8
7
6
5
Figure 13. Typical Connections of the TMP175 and TMP75
8.2.1 Design Requirements
The TMP175 and TMP75 devices requires pullup resistors on the SCL, SDA, and ALERT pins. The
recommended value for the pullup resistor is 5 kΩ. In some applications the pullup resistor can be lower or
higher than 5 kΩ but must not exceed 3 mA of current on the SCL and SDA pins, and must not exceed 4 mA on
the ALERT pin. A 0.1-μF bypass capacitor is recommended, as shown in Figure 13. The SCL, SDA, and ALERT
lines can be pulled up to a supply that is equal to or higher than VS through the pullup resistors. For TMP175, to
configure one of 27 different addresses on the bus, connect A0, A1, and A2 to either the GND or V+ pin, or float.
Float indicates the pin is left unconnected. For the TMP75, to configure one of eight different addresses on the
bus, connect A0, A1, and A2 to either the GND or V+ pin.
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
21
TMP175, TMP75
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
www.ti.com
Typical Application (continued)
8.2.2 Detailed Design Procedure
Place the TMP175 and TMP75 devices in close proximity to the heat source that must be monitored, with a
proper layout for good thermal coupling. This placement ensures that temperature changes are captured within
the shortest possible time interval. To maintain accuracy in applications that require air or surface temperature
measurement, take care to isolate the package and leads from ambient air temperature. A thermally-conductive
adhesive is helpful in achieving accurate surface temperature measurement.
8.2.3 Application Curve
Temperature (qC)
Figure 14 shows the step response of the TMP175 and TMP75 devices to a submersion in an oil bath of 100ºC
from room temperature (27ºC). The time-constant, or the time for the output to reach 63% of the input step, is 1.5
s. The time-constant result depends on the printed-circuit-board (PCB) that the TMPx175 devices are mounted.
For this test, the TMP175 and TMP75 devices were soldered to a two-layer PCB that measured 0.375 inch ×
0.437 inch.
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
-1
1
3
5
7
9
11
Time (s)
13
15
17
19
Figure 14. Temperature Step Response
22
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
TMP175, TMP75
www.ti.com
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
9 Power Supply Recommendations
The TMP175 and TMP75 devices operate with a power supply in the range of 2.7 V to 5.5 V. A power-supply
bypass capacitor is required for stability; place this capacitor as close as possible to the supply and ground pins
of the device. A typical value for this supply bypass capacitor is 0.01 μF. Applications with noisy or highimpedance power supplies can require additional decoupling capacitors to reject power-supply noise.
10 Layout
10.1 Layout Guidelines
Place the power-supply bypass capacitor as close as possible to the supply and ground pins. The recommended
value of this bypass capacitor is 0.01 μF. Additional decoupling capacitance can be added to compensate for
noisy or high-impedance power supplies. Pull up the open-drain output pins SDA , SCL, and ALERT through 5kΩ pullup resistors.
10.2 Layout Example
Via to Power or Ground Plane
Via to Internal Layer
Pull-Up Resistors
Supply Bypass
Capacitor
Supply Voltage
SDA
VS
SCL
A0
ALERT
A1
GND
A2
Ground Plane for
Thermal Coupling
to Heat Source
Serial Bus Traces
Heat Source
Figure 15. Layout Example
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
23
TMP175, TMP75
SBOS288L – JANUARY 2004 – REVISED DECEMBER 2015
www.ti.com
11 Device and Documentation Support
11.1 Related Links
The table below lists quick access links. Categories include technical documents, support and community
resources, tools and software, and quick access to sample or buy.
Table 15. Related Links
PARTS
PRODUCT FOLDER
SAMPLE & BUY
TECHNICAL
DOCUMENTS
TOOLS &
SOFTWARE
SUPPORT &
COMMUNITY
TMP175
Click here
Click here
Click here
Click here
Click here
TMP75
Click here
Click here
Click here
Click here
Click here
11.2 Community Resources
The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective
contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of
Use.
TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration
among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help
solve problems with fellow engineers.
Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and
contact information for technical support.
11.3 Trademarks
E2E is a trademark of Texas Instruments.
SMBus is a trademark of Intel Corporation.
All other trademarks are the property of their respective owners.
11.4 Electrostatic Discharge Caution
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
11.5 Glossary
SLYZ022 — TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.
12 Mechanical, Packaging, and Orderable Information
The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
24
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: TMP175 TMP75
PACKAGE OPTION ADDENDUM
www.ti.com
24-Aug-2018
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
Lead/Ball Finish
MSL Peak Temp
(2)
(6)
(3)
Op Temp (°C)
Device Marking
(4/5)
TMP175AID
ACTIVE
SOIC
D
8
75
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-2-250C-1 YEAR
-40 to 125
TMP175
TMP175AIDGKR
ACTIVE
VSSOP
DGK
8
2500
Green (RoHS
& no Sb/Br)
CU NIPDAU |
CU NIPDAUAG
Level-2-260C-1 YEAR
-40 to 125
DABQ
TMP175AIDGKT
ACTIVE
VSSOP
DGK
8
250
Green (RoHS
& no Sb/Br)
CU NIPDAU |
CU NIPDAUAG
Level-2-260C-1 YEAR
-40 to 125
DABQ
TMP175AIDGKTG4
ACTIVE
VSSOP
DGK
8
250
Green (RoHS
& no Sb/Br)
CU NIPDAUAG
Level-2-260C-1 YEAR
-40 to 125
DABQ
TMP175AIDR
ACTIVE
SOIC
D
8
2500
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-2-260C-1 YEAR
-40 to 125
TMP175
TMP75AID
ACTIVE
SOIC
D
8
75
Green (RoHS
& no Sb/Br)
CU NIPDAU | Call TI
Level-1-260C-UNLIM
-40 to 125
TMP75
TMP75AIDG4
ACTIVE
SOIC
D
8
75
Green (RoHS
& no Sb/Br)
Call TI
Level-1-260C-UNLIM
-40 to 125
TMP75
TMP75AIDGKR
ACTIVE
VSSOP
DGK
8
2500
Green (RoHS
& no Sb/Br)
CU NIPDAU |
CU NIPDAUAG
Level-2-260C-1 YEAR
-40 to 125
T127
TMP75AIDGKRG4
ACTIVE
VSSOP
DGK
8
2500
Green (RoHS
& no Sb/Br)
CU NIPDAUAG
Level-2-260C-1 YEAR
-40 to 125
T127
TMP75AIDGKT
ACTIVE
VSSOP
DGK
8
250
Green (RoHS
& no Sb/Br)
CU NIPDAU |
CU NIPDAUAG
Level-2-260C-1 YEAR
-40 to 125
T127
TMP75AIDGKTG4
ACTIVE
VSSOP
DGK
8
250
Green (RoHS
& no Sb/Br)
CU NIPDAUAG
Level-2-260C-1 YEAR
-40 to 125
T127
TMP75AIDR
ACTIVE
SOIC
D
8
2500
Green (RoHS
& no Sb/Br)
CU NIPDAU | Call TI
Level-1-260C-UNLIM
-40 to 125
TMP75
TMP75AIDRG4
ACTIVE
SOIC
D
8
2500
Green (RoHS
& no Sb/Br)
Call TI
Level-1-260C-UNLIM
-40 to 125
TMP75
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
Addendum-Page 1
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
24-Aug-2018
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3)
MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4)
There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5)
Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish
value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
OTHER QUALIFIED VERSIONS OF TMP175, TMP75 :
• Automotive: TMP175-Q1, TMP75-Q1
NOTE: Qualified Version Definitions:
• Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
3-Aug-2017
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
Diameter Width (mm)
(mm) W1 (mm)
B0
(mm)
K0
(mm)
P1
(mm)
W
Pin1
(mm) Quadrant
TMP175AIDGKR
VSSOP
DGK
8
2500
330.0
12.4
5.3
3.4
1.4
8.0
12.0
Q1
TMP175AIDGKR
VSSOP
DGK
8
2500
330.0
12.4
5.3
3.3
1.3
8.0
12.0
Q1
TMP175AIDGKT
VSSOP
DGK
8
250
330.0
12.4
5.3
3.4
1.4
8.0
12.0
Q1
TMP175AIDGKT
VSSOP
DGK
8
250
180.0
12.4
5.3
3.3
1.3
8.0
12.0
Q1
TMP175AIDR
SOIC
D
8
2500
330.0
12.4
6.4
5.2
2.1
8.0
12.0
Q1
TMP75AIDGKR
VSSOP
DGK
8
2500
330.0
12.4
5.3
3.4
1.4
8.0
12.0
Q1
TMP75AIDGKT
VSSOP
DGK
8
250
330.0
12.4
5.3
3.4
1.4
8.0
12.0
Q1
TMP75AIDR
SOIC
D
8
2500
330.0
12.4
6.4
5.2
2.1
8.0
12.0
Q1
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
3-Aug-2017
*All dimensions are nominal
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
TMP175AIDGKR
VSSOP
DGK
8
2500
366.0
364.0
50.0
TMP175AIDGKR
VSSOP
DGK
8
2500
370.0
355.0
55.0
TMP175AIDGKT
VSSOP
DGK
8
250
366.0
364.0
50.0
TMP175AIDGKT
VSSOP
DGK
8
250
195.0
200.0
45.0
TMP175AIDR
SOIC
D
8
2500
367.0
367.0
35.0
TMP75AIDGKR
VSSOP
DGK
8
2500
366.0
364.0
50.0
TMP75AIDGKT
VSSOP
DGK
8
250
366.0
364.0
50.0
TMP75AIDR
SOIC
D
8
2500
367.0
367.0
35.0
Pack Materials-Page 2
PACKAGE OUTLINE
D0008A
SOIC - 1.75 mm max height
SCALE 2.800
SMALL OUTLINE INTEGRATED CIRCUIT
C
SEATING PLANE
.228-.244 TYP
[5.80-6.19]
A
.004 [0.1] C
PIN 1 ID AREA
6X .050
[1.27]
8
1
2X
.150
[3.81]
.189-.197
[4.81-5.00]
NOTE 3
4X (0 -15 )
4
5
B
8X .012-.020
[0.31-0.51]
.010 [0.25]
C A B
.150-.157
[3.81-3.98]
NOTE 4
.069 MAX
[1.75]
.005-.010 TYP
[0.13-0.25]
4X (0 -15 )
SEE DETAIL A
.010
[0.25]
.004-.010
[0.11-0.25]
0 -8
.016-.050
[0.41-1.27]
DETAIL A
(.041)
[1.04]
TYPICAL
4214825/C 02/2019
NOTES:
1. Linear dimensions are in inches [millimeters]. Dimensions in parenthesis are for reference only. Controlling dimensions are in inches.
Dimensioning and tolerancing per ASME Y14.5M.
2. This drawing is subject to change without notice.
3. This dimension does not include mold flash, protrusions, or gate burrs. Mold flash, protrusions, or gate burrs shall not
exceed .006 [0.15] per side.
4. This dimension does not include interlead flash.
5. Reference JEDEC registration MS-012, variation AA.
www.ti.com
EXAMPLE BOARD LAYOUT
D0008A
SOIC - 1.75 mm max height
SMALL OUTLINE INTEGRATED CIRCUIT
8X (.061 )
[1.55]
SYMM
SEE
DETAILS
1
8
8X (.024)
[0.6]
6X (.050 )
[1.27]
SYMM
5
4
(R.002 ) TYP
[0.05]
(.213)
[5.4]
LAND PATTERN EXAMPLE
EXPOSED METAL SHOWN
SCALE:8X
METAL
SOLDER MASK
OPENING
EXPOSED
METAL
.0028 MAX
[0.07]
ALL AROUND
SOLDER MASK
OPENING
METAL UNDER
SOLDER MASK
EXPOSED
METAL
.0028 MIN
[0.07]
ALL AROUND
SOLDER MASK
DEFINED
NON SOLDER MASK
DEFINED
SOLDER MASK DETAILS
4214825/C 02/2019
NOTES: (continued)
6. Publication IPC-7351 may have alternate designs.
7. Solder mask tolerances between and around signal pads can vary based on board fabrication site.
www.ti.com
EXAMPLE STENCIL DESIGN
D0008A
SOIC - 1.75 mm max height
SMALL OUTLINE INTEGRATED CIRCUIT
8X (.061 )
[1.55]
SYMM
1
8
8X (.024)
[0.6]
6X (.050 )
[1.27]
SYMM
5
4
(R.002 ) TYP
[0.05]
(.213)
[5.4]
SOLDER PASTE EXAMPLE
BASED ON .005 INCH [0.125 MM] THICK STENCIL
SCALE:8X
4214825/C 02/2019
NOTES: (continued)
8. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate
design recommendations.
9. Board assembly site may have different recommendations for stencil design.
www.ti.com
IMPORTANT NOTICE AND DISCLAIMER
TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATASHEETS), DESIGN RESOURCES (INCLUDING REFERENCE
DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS”
AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY
IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD
PARTY INTELLECTUAL PROPERTY RIGHTS.
These resources are intended for skilled developers designing with TI products. You are solely responsible for (1) selecting the appropriate
TI products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable
standards, and any other safety, security, or other requirements. These resources are subject to change without notice. TI grants you
permission to use these resources only for development of an application that uses the TI products described in the resource. Other
reproduction and display of these resources is prohibited. No license is granted to any other TI intellectual property right or to any third
party intellectual property right. TI disclaims responsibility for, and you will fully indemnify TI and its representatives against, any claims,
damages, costs, losses, and liabilities arising out of your use of these resources.
TI’s products are provided subject to TI’s Terms of Sale (www.ti.com/legal/termsofsale.html) or other applicable terms available either on
ti.com or provided in conjunction with such TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable
warranties or warranty disclaimers for TI products.
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2019, Texas Instruments Incorporated
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Related manuals

Download PDF

advertising