UG-659: ADM1175/ADM1176/ADM1177/ADM1178 Evaluation Kit User Guide PDF

EVAL-ADM1175EBZ/EVAL-ADM1176EBZ
EVAL-ADM1177EBZ/EVAL-ADM1178EBZ User Guide
UG-659
One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
ADM1175/ADM1176/ADM1177/ADM1178 Evaluation Kit User Guide
FEATURES
GENERAL DESCRIPTION
Evaluation kit for the
ADM1175/ADM1176/ADM1177/ADM1178
Input voltage range 3.15 V to 16.5 V
12-bit ADC for current and voltage readback
The ADM1175/ADM1176/ADM1177/ADM1178 hot swap
controller and digital power monitor evaluation board can
be controlled by the configuration tool allowing the device
to be actively stimulated through software. This board
requires a bench power supply of between 3.15 V and
16.5 V, connected through J3 and J4. Download the latest
version of the Configuration Tool from Analog Devices, Inc.
EVALUATION KIT CONTENTS
ADM1175/ADM1176/ADM1177/ADM1178 evaluation board
USB-I2C5W-ADPTZ adapter board
5-pin interconnection cable
ADM1175/ADM1176/ADM1177/ADM1178 device samples
Note that when changing devices the software should first be
shutdown and the power supply to the board removed. J7 is an
I2C connector that connects the PC to the evaluation board via
a USB-SDP-CABLEZ.
ADDITIONAL EQUIPMENT NEEDED
USB-to-serial I/O interface USB-SDP-CABLEZ
REQUIRED SOFTWARE
Analog Devices hot swap and power monitoring evaluation
software
DIGITAL PICTURE OF THE EVALUATION BOARD
MINIMOLEX CABLE (J8)
VIN (J3)
06474-002
GND (J4)
5-PIN SMBus CABLE (J7)
Figure 1.
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. A | Page 1 of 20
UG-659 EVAL-ADM1175EBZ/EVAL-ADM1176EBZ/EVAL-ADM1177EBZ/EVAL-ADM1178EBZ
TABLE OF CONTENTS
Features .............................................................................................. 1
Manually Uninstalling the Evaluation Software .......................8
Evaluation Kit Contents ................................................................... 1
USB–Communicating for the First Time...................................9
Additional Equipment Needed ....................................................... 1
Launching the Evaluation Software ......................................... 10
Required Software ............................................................................ 1
Evaluation Software—Main Panel Tab ........................................ 11
General Description ......................................................................... 1
Command Register Controls .................................................... 11
Digital Picture of the Evaluation Board ......................................... 1
Alert Register Controls .............................................................. 11
Revision History ............................................................................... 2
Status Register Controls ............................................................ 12
Evaluation Board Hardware ............................................................ 3
Force Hotswap Off Control....................................................... 12
Hardware Components................................................................ 3
Overcurrent Output Flag Control ............................................ 12
Switch Functions .......................................................................... 4
Trace Data Display Controls ..................................................... 12
Jumper Functions ......................................................................... 4
Readback Update Rate Control ................................................ 12
LED Functions .............................................................................. 5
Data Logger Controls................................................................. 13
Configuration Link Functions .................................................... 5
Convert Pin Controls ................................................................. 13
Evaluation Board Software .............................................................. 6
Communication Status Indicator ............................................. 13
Additional Features ...................................................................... 6
Real-Time Graphs of Voltage, Current, and Power ................... 14
Powering the Evaluation Board .................................................. 6
Evaluating Multiple Devices in Parallel ....................................... 15
Communicating with the Evaluation Board ............................... 6
Communicating with Interconnected Evaluation Boards .... 15
Configuration Tool ....................................................................... 6
Evaluation Board Schematic ......................................................... 17
Installing the Evaluation Software ............................................. 7
Ordering Information .................................................................... 18
Uninstalling the Evaluation Software ........................................ 8
Bill of Materials ........................................................................... 18
REVISION HISTORY
5/14—Rev. 0 to Rev. A
Updated Format .................................................................. Universal
Added USB-I2C5W-ADPTZ Adapter Board Section ................. 3
Changes to Evaluation Multiple Devices in Parallel Section .... 14
Removed Ordering Guide Section ............................................... 19
5/08—Revision 0: Initial Version
Rev. A | Page 2 of 20
EVAL-ADM1175EBZ/EVAL-ADM1176EBZ/EVAL-ADM1177EBZ/EVAL-ADM1178EBZ UG-659
EVALUATION BOARD HARDWARE
This evaluation board allows the ADM1175/ADM1176/
ADM1177/ADM1178 devices to be easily evaluated. These
parts combine a hot swap controller and an on-board 12-bit
ADC-based digital power monitor that reports the power being
drawn. The hot swap control circuitry allows the boards to be
safely inserted and removed from a live 3.15 V to 16.5 V backplane. The parts provide precise, robust, current-limiting
protection against transient and nontransient short circuits
and undervoltage and overcurrent conditions. In addition
to the standard hot swap functionality, the on-board power
monitoring circuitry allows for precise monitoring of the
power profile of each individual line card within a designated
rack system. Communication to the power monitor is via an
on-board I2C® port.
Order codes for evaluation kits, pinouts, and detailed package
drawings can be found in the individual product data sheets.
5-Pin Interconnection Cable
This cable is used for multiple evaluation board parallel connection setups. Two or more boards can be connected in parallel
through the J8 and J9 connectors using the 5-pin interconnection
cable. Each device should be assigned to a different address
using address pins. The maximum number of devices that
can be interconnected is four for the ADM1175/ADM1177/
ADM1178, and 16 for theADM1176.
Device Samples
Some loose samples of the device to be evaluated are included
in a samples box. A single device should be placed in the socket
before powering up the evaluation board. The device should be
orientated in the socket such that Pin 1 is in the top left corner,
near C8 as shown in Figure 3.
C8
HARDWARE COMPONENTS
R3
PIN 1 IDENTIFIER
The evaluation board contains all of the circuitry necessary to
simulate real hot swap events, such as a hot swap control FET,
sense resistor, and timing components. It also has an adjustable
load circuit to evaluate the performance of the device under
varying load conditions.
SOCKET
USB-I2C5W-ADPTZ Adapter Board
ADM1175/ADM1176/
ADM1177/ADM1178 DEVICE
06474-001
Main Evaluation Board
Figure 3. Device Placement Evaluation Kit Order Codes
06474-104
The USB-SDP-CABLEZ uses a 10-pin Micro-MaTch male
connector as its interface connector. The evaluation board is
supplied with the USB-I2C5W-ADPTZ adapter board to
convert the 10-pin Micro-MaTch connector to a 5-pin 0.1"
header connector. For more information on how to use the
adapter board, refer to the USB-SDP-CABLEZ user guide.
Figure 2. USB-I2C5W-ADPTZ Adapter Board
Rev. A | Page 3 of 20
UG-659 EVAL-ADM1175EBZ/EVAL-ADM1176EBZ/EVAL-ADM1177EBZ/EVAL-ADM1178EBZ
SWITCH FUNCTIONS
Table 1.
Switch
S1
S1-1
S1-2
S2
S2-1
S2-2
S2-3
S2-4
S3
S3-1
S3-2
S3-3
S3-4
S4
S4-1
S4-2
S4-3
S4-4
S5
S5-1
S5-2
S5-3
S5-4
S6
S7
VR1
Description
ON pin setting switch.
Connects resistor divider, R1/R2, to the ON pin of the device, when the switch is closed the voltage divider is
connected to the ON pin.
Connects S7 to the ON pin of ADM1175/ADM1176/ADM1177/ADM1178 device.
Timer adjust capacitor. Sets current limit on time.
Connects a 4.7 nF capacitor (C1) to the TIMER pin.
Connects a 47 nF capacitor (C2) to the TIMER pin.
Connects a 470 nF capacitor (C3) to the TIMER pin.
Connects user-defined capacitors (C4 and C5) to the TIMER pin.
Applies only to the ADM1176. Board address control switch.
Connects the A0 pin of the device to 3.3 V.
Pulls the A0 pin of the device to GND through a 150 kΩ resistor.
Pulls the A0 pin of the device to GND.
No connect.
Applies only to the ADM1176. Additional board address control switch.
Connects the A1 pin of the ADM1176 to 3.3 V.
Pulls the A1 pin of the ADM1176 to GND through a 150 kΩ resistor.
Pulls the A1 pin of the ADM1176 to GND.
No connect.
Applies only to the ADM1177. Soft start (SS) capacitor; allows the user to set the profile of the initial current ramp.
Connects a 1 nF SS capacitor (C9) to the SS pin.
Connects a 10 nF SS capacitor (C10) to the SS pin.
Connects a 47 nF SS capacitor (C11) to the SS pin.
Connects user-defined SS capacitors (C12 and C13) to the SS pin.
Applies only to the ADM1175 device. Controls the CONV pin, when depressed the CONV pin is high. For Switch S6 to
control the CONV pin, the jumper in Link 3 should be in Position B (separate from S7).
Switches the ON pin logically high or low.
ADM1175-1/ADM1176-1/ADM1177-1/ADM1178-1 or ADM1175-2/ADM1176-2/ADM1177-2/ADM1178-2: switch to
3.3 V to enable the device.
ADM1175-3/ADM1175-4: switch to ground to enable the device.
VR1 adjusts a variable load, turning the switch clockwise reduces the load resistance and hence increases the load
current to a maximum of 550 mA.
Default
Open
Closed
Open
Closed
Open
Open
Open
Open
Open
Open
Open
Open
Open
Closed
Open
Open
Depressed
High
N/A
JUMPER FUNCTIONS
Table 2.
Jumper
LK1
LK2
LK3
LK4
LK5
J1
J2
Description
When inserted, the gate of the FET is connected to the GATE pin.
Applies only to ADM1178.
In Position A, LK2 connects the ALERTB pin to the I2C ALERTB line.
In Position B, LK2 connects the ALERTB pin to LED (D4).
Applies only to ADM1175.
In Position A, LK3 connects the CONV pin to the I2C CONV line.
In Position B, LK3 connects the CONV pin to Switch S6.
ADM1175: Connects the CONV pin to LK3.
ADM1176: Connects the A1 pin to S4.
ADM1177: Connects the SS pin to S4.
ADM1178: Connects the GATE pin to the gate node of the hot swap FET.
Connects A0 Address Switch S3 to Pin ADR/A0 when inserted.
In Position A, development Area A (VDRAIN) is connected to the SENSE pin of the devices.
In Position B, VIN is connected to VDRAIN of FET Q1.
In Position A, VSOURCE of FET Q1 is connected to Development Area C (VSOURCE).
In Position B, VSOURCE of FET Q1 is connected to programmable load circuit.
Rev. A | Page 4 of 20
Default
Inserted
A
A
Inserted
Inserted
B
B
EVAL-ADM1175EBZ/EVAL-ADM1176EBZ/EVAL-ADM1177EBZ/EVAL-ADM1178EBZ UG-659
LED FUNCTIONS
Table 3.
LED
D1
D3
D4
Name
Input
Output
Alert
Description
Indicates supply voltage is present.
Indicates that the FET is on and output voltage is present.
Indicates an overcurrent alert (ADM1178 only).
CONFIGURATION LINK FUNCTIONS
To configure an evaluation board to a specific device, ensure that the links in Table 4 are inserted.
Table 4.
Link
SL1
SL2
SL3
SL4
SL5
SL6
Description
Configuration link applies to the ADM1175, ADM1176, and ADM1177.
Configuration link applies to the ADM1178.
Configuration link applies to the ADM1178.
Configuration link applies to the ADM1175.
Configuration link applies to the ADM1176.
Configuration link applies to the ADM1177.
Rev. A | Page 5 of 20
UG-659 EVAL-ADM1175EBZ/EVAL-ADM1176EBZ/EVAL-ADM1177EBZ/EVAL-ADM1178EBZ
EVALUATION BOARD SOFTWARE
The ADM1175/ADM1176/ADM1177/ADM1178 are integrated
hot swap controllers and current-sense amplifiers that offer
digital current and voltage monitoring via an on-chip 12-bit
ADC. These parts communicate through an I2C interface.
An internal current-sense amplifier senses voltage across the
sense resistor in the power path via the VCC and SENSE pins.
The ADM1175/ADM1176/ADM1177/ADM1178 limit the
current through this resistor by controlling the gate voltage of
an external N-channel FET in the power path, via the GATE
pin. The sense voltage (and hence the inrush current) is kept
below a preset maximum. The ADM1175/ADM1176/ADM1177/
ADM1178 protect the external FET by limiting the time that
it spends with the maximum current running in it. This current
limit period is set by the choice of capacitor attached to the
TIMER pin.
Additionally, the device provides protection from overcurrent
events at times after the hot swap event is complete. In the case
of a short-circuit event, the current in the sense resistor exceeds
an overcurrent trip threshold, and the FET is switched off immediately by pulling down the GATE pin. A 12-bit ADC can
measure the current seen in the sense resistor, and the supply
voltage on the VCC pin. An industry standard I2C interface
allows a controller to read current and voltage data from the
ADC. Measurements can be initiated by an I2C command.
Alternatively, the ADC can run continuously and the user
can read the latest conversion data whenever it is required.
Up to four (16 for the ADM1176) unique I2C addresses can be
created because of the way the ADR pin is connected.
ADDITIONAL FEATURES
ADM1175
Measurements may be initiated using an I2C command or via
the convert pin (CONV). This is useful for synchronizing
multiple ADM1175 devices.
ADM1176
Up to 16 unique I2C addresses can be created due to the
manner in which the A0 and A1 pins are connected.
ADM1177
A soft start (SS) pin is included. This gives the user control
over the reference on the current-sense amplifier. An internal
current source charges a capacitor on this pin during startup,
allowing the user to set the profile of the initial current ramp.
A voltage can also be driven on this pin to alter the reference.
ADM1178
An ALERTB pin is included to indicate an overcurrent
interrupt.
POWERING THE EVALUATION BOARD
The ADM1175/ADM1176/ADM1177/ADM1178 evaluation
board is powered using a bench supply of between 3.15 V and
16.5 V, connected to J3 (VIN) and J4 (GND).
COMMUNICATING WITH THE EVALUATION BOARD
A graphical user interface (GUI) provided by Analog Devices
facilitates communication with the ADM1175/ADM1176/
ADM1177/ADM1178device. The latest revision of this software
is available to download from www.analog.com. The software is
compatible with Windows® 98, 2000, and XP.
Communication between a PC and the evaluation board is
achieved through the 5-pin header (J7), which should be
connected to the PC using the provided cable.
CONFIGURATION TOOL
The configuration tool enables the user to program and
monitor the many features of the hot swap controllers, power
monitors, and current-sense amplifiers through an intuitive,
GUI-based interface. The evaluation kit allows you to verify
your configuration before using the parts in system applications.
The following are the minimum system requirements:
•
•
•
•
•
Windows 2000
a 500 MHz processor,
80 Mb of free disc space
256 MB RAM
minimum monitor resolution: 800 × 600 high color (16-bit)
The software interface is arranged in a tabbed format, where
each tab enables the control of a key feature of the device.
Rev. A | Page 6 of 20
EVAL-ADM1175EBZ/EVAL-ADM1176EBZ/EVAL-ADM1177EBZ/EVAL-ADM1178EBZ UG-659
INSTALLING THE EVALUATION SOFTWARE
5.
Install the software using the following steps:
1.
06474-005
2.
3.
Download the .zip file containing the Configuration Tool
software from Analog Devices.
Extract the files from the .zip file.
Double-click setup.exe. The Installation Wizard window
appears (see Figure 4).
To change the destination folder, click Browse to create a
new destination folder. Otherwise, click Next. The Ready
to Install the Application window appears (see Figure 6).
Figure 6. Evaluation Software—Ready to Install
Figure 4. Evaluation Software Installation Wizard
Click Next to display the Destination Folder window (see
Figure 5).
06474-004
4.
Figure 5. Evaluation Software—Choosing a Destination Folder
Rev. A | Page 7 of 20
This step of the installation gives you the choice to reenter
the installation information, to cancel out of the installation
altogether, or to begin the installation. To continue with
the installation, click Next. The installation begins (see
Figure 7).
06474-006
06474-003
6.
Figure 7. Installation in Progress
UG-659 EVAL-ADM1175EBZ/EVAL-ADM1176EBZ/EVAL-ADM1177EBZ/EVAL-ADM1178EBZ
06474-009
Upon completion, the following window appears:
06474-007
7.
Figure 8. Evaluation Software—Installation Complete
Click Finish. The Installer Information window appears
indicating that you should restart the system for the configuration changes to take effect (see Figure 9). It is advised to
restart your PC before launching the software. Click Yes to
restart the PC or click No to manually restart later.
Click Next. The software uninstalls, providing status as it does
so, and the following window in Figure 11 appears indicating
that the previous version has been successfully uninstalled.
06474-010
06474-008
8.
Figure 10. Evaluation Software—Uninstalling
Figure 9. Installation Restart Reminder
UNINSTALLING THE EVALUATION SOFTWARE
Before an updated version of the evaluation software is
installed, any previous version must be uninstalled. The
software automatically does this once the newly downloaded
file is opened. The Uninstall window appears notifying you
that the previous version will be uninstalled (see Figure 10).
Figure 11. Evaluation Software—Uninstalling Complete
MANUALLY UNINSTALLING THE EVALUATION
SOFTWARE
If you wish to uninstall the ADM1175/ADM1176/ADM1177/
ADM1178 software (without upgrading it to a newer version),
use the following steps:
1.
2.
3.
4.
Rev. A | Page 8 of 20
Click Start.
Click Control Panel.
Click Add or Remove Programs.
Highlight the ADM1175/ADM1176/ADM1177/ADM1178
program and click Remove to uninstall it.
EVAL-ADM1175EBZ/EVAL-ADM1176EBZ/EVAL-ADM1177EBZ/EVAL-ADM1178EBZ UG-659
USB–COMMUNICATING FOR THE FIRST TIME
06474-012
When the board is launched for the first time using a USB
connection, Windows does not recognize the external
evaluation board and begins installing drivers automatically.
The Found New Hardware Wizard window appears (see
Figure 12). Select Install the software automatically
(Recommended).
Figure 13. Windows XP Compatibility
06474-011
Once this is complete, the window in Figure 14 appears. To
close the Installation Wizard, click Finish. You can now open
the software and run as normal.
Figure 12. Automatically Installing Drivers for the Evaluation Board
06474-013
In Windows XP, a warning appears indicating that the hardware
has not passed Windows logo testing to verify compatibility
with Windows XP. However, the evaluation board has been
tested and is compatible with Windows XP. To install the
necessary drivers, click Continue Anyway (see Figure 13).
Figure 14. Completing Installation
Rev. A | Page 9 of 20
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LAUNCHING THE EVALUATION SOFTWARE
1.
06474-015
2.
To launch the evaluation software, click Start\All
Programs\ ADM1175-92 Configuration Tool
3.0.1\ADM1175-92 Configuration Tool 3.0.1. Note that
the actual folder name
is version dependent.
Once launched, the Evaluation Software Agreement
window appears (see Figure 15). Choose I Agree to concur
with the conditions, then select Continue.
Figure 16. Device Address Detection Screen
Click OK. The Enter Sense resistor value window appears
(see Figure 17).
06474-014
3.
Figure 15. Software Agreement
There are four possible I2C addresses for the ADM1175,
ADM1177, and ADM1178 while there are 16 possible I2C
addresses for the ADM1176. Figure 16 indicates that an
ADM1175 has responded, with I2C Address D6h.
06474-016
If the evaluation board is powered up and a ADM1175/
ADM1176/ADM1177/ADM1178 device is in the socket,
the Device address search window appears. A green
highlighted box corresponds to the devices I2C address
(see Figure 16).
Figure 17. Sense Resistor Value Entry
4.
Enter the value of the sense resistor, RSENSE (R3). The default
value of RSENSE on the ADM1175/ADM1176/ADM1177/
ADM1178 evaluation boards is 0.2 Ω. Select OK to
continue.
For more information on interconnecting devices, see the
Evaluating Multiple Devices in Parallel section.
Rev. A | Page 10 of 20
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EVALUATION SOFTWARE—MAIN PANEL TAB
ALERT REGISTER CONTROLS
06474-019
The Main Panel tab of the evaluation software is shown in
Figure 18. Each aspect of the main panel is discussed in detail
in the following sections.
Figure 20. Alert Register Panel
06474-017
The Alert Register panel allows you to enable/disable the
different alerts generated by the device using four toggle
buttons. The four alert types are ADC OC1, ADC OC4, hot
swap alert, and OFF ALERT.
Figure 18. Main Panel on User Interface
By default, the hot swap alert is enabled while the ADC OC1,
ADC OC4, and the OFF ALERT are disabled. An enabled alert
is highlighted in yellow, while a disabled alert is gray in color.
To enable or disable an alert simply select the corresponding
button in the Alert Register panel (see Figure 20).
Analog-to-Digital Converter Overcurrent Alert 1 (ADC OC1)
COMMAND REGISTER CONTROLS
06474-018
Once enabled a text box appears prompting you to enter the
current limit that triggers the alert. The range is between 0 A
to 0.529 A. Press Enter after entering the value. The ADC
overcurrent alert is triggered if a current greater than the
programmable level is detected by a single ADC sample.
The Command Register panel allows you to control the way
the device reads data. There are five toggle buttons to select the
data reading method and voltage range. If the voltage range is
set at 14:1 by default (7:2 if the Voltage Range button is selected),
you may read the current and voltage just once or read them
continuously. Once the range and reading method have been
selected, click Write Data To Command Register.
Note that the Read Current Once button and Continuous
Current Read button cannot be selected simultaneously. The
same rule applies to the Read Voltage Once and Continuous
Voltage Read buttons.
06474-020
Figure 19. Command Register Panel
Figure 21. Analog-to-Digital Converter Overcurrent Alert 1
Analog-to-Digital Converter Overcurrent Alert 1 (ADC OC4)
The ADC OC4 alert is similar to the ADC OC1 alert except that
it only triggers if a current greater than the programmable level
is detected for four consecutive ADC samples. This avoids the
situation where a single transient event triggers an ADC overcurrent condition.
Hot Swap Alert
Hot swap alert is enabled if the hot swap has either latched off
or entered a cool-down cycle because of an overcurrent event.
Off Alert
Off alert enables the software off alert.
Rev. A | Page 11 of 20
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STATUS REGISTER CONTROLS
OVERCURRENT OUTPUT FLAG CONTROL
06474-024
06474-021
To the right of the status register, there is an Overcurrent Output
Flag indicator. For the ADM1178, it is ALERTB. This indicator
updates in real time. If an overcurrent condition is detected, the
indicator changes from green to red. In Figure 25, the green
highlight indicates that an overcurrent has not been detected.
Figure 22. Status Register Panel
The Status Register monitors three alert types: ADC overcurrent
alert, hot swap overcurrent alert, and software off alert.
The Status Register has six alert indicators. The upper row
shows the real-time alert status and the lower row shows the
latched alert status. Each type of alert may be enabled or
disabled in the Alert Register, as discussed in the Alert Register
Controls section.
If the overcurrent condition is removed, the highlight changes
back to green once the Read Status Register button in the
Status Register is selected.
Note that the position of Jumper LK2 for ADM1178 on the
evaluation board affects the status of this flag. If the corresponding
jumper is inserted in Position B, the overcurrent output flag is
represented by the on-board LEDs and the indicator in the
software is continuously green even when an overcurrent event
occurs.
TRACE DATA DISPLAY CONTROLS
06474-025
To read the alert status, click Read Status Register. To clear
latched alerts, select Clear Latched Alerts. An alert indicator
that changes color from green to red indicates that the alert has
been triggered.
Figure 25. ADM1178 Overcurrent Output Flag
06474-022
Figure 26. Trace Data Display Panel
The trace data display panel displays the digitized current,
voltage, and power data. You can change the name of the trace
using the Trace name text box.
Note that this software also supports multiple board connections, in which case multiple traces appear. For further information,
see the Evaluating Multiple Devices in Parallel section.
Figure 23. Status Register Showing Triggered Alerts
If the hot swap overcurrent alert has been triggered (see
Figure 23), the device goes into an overcurrent protection
mode. To reset the board, you can cycle the power, toggle
the ON pin of the device through Switch S7, or toggle the
Software ON/OFF button in the evaluation software.
READBACK UPDATE RATE CONTROL
06474-023
06474-026
FORCE HOTSWAP OFF CONTROL
Figure 27. Readback Update Rate Selection Menu
Figure 24. Software On/Off Switching Button
The Software ON button manually overrides the on/off
control signal for the gate circuitry. Clicking the button
manually switches off FET Q1. The OFF STATUS alert
triggers if the software turns off, and appears in red in the
status register.
The Readback update rate selection menu is set using the
drop-down menu shown in Figure 27. There are four options
to choose from; every 100 ms, 200 ms, 500 ms, or 1000 ms.
This changes the rate at which the data in the data display
panel is updated. The Readback update rate also sets the rate
for the Data Logger and the real time graphs.
Rev. A | Page 12 of 20
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DATA LOGGER CONTROLS
06474-027
The jumper in LK3 should be in Position A to allow the
evaluation software to control the convert pin. If the jumper is
in Position B, the on-board switch, S6, can be used to control
the conversion.
Figure 28. Data Logger Panel
The Data Logger panel allows you to log the digitized data
collected in a Microsoft® Excel file, giving you more flexibility
to monitor and compare data. However, you must set up the
data sampling rules using the following steps:
1.
Enter the number of times to perform a sample in the Set
log limit (0 = No limit) text box. The sampling rate is set
using the Readback update rate drop-down menu, as
discussed previously, there are four options to choose
from 100 ms, 200 ms, 500 ms, or 1000 ms. In the example
in Figure 29, the data logger logs 100 samples, with 100 ms
between each sample.
The Convert Pin Control panel allows you to control the
analog-to-digital conversion of voltage and/or current. Four
buttons on the Convert Pin Control panel control the type of
data conversion carried out.
•
•
•
06474-028
•
3.
Click the Log data to file button. A file browser dialog box
appears for you to choose the file name and the location
where the data will be stored. Press B to start logging data
to the file. The data will be sampled at the chosen rate and
logged to the Excel file.
Once the data begins logging, the Total logged samples are
displayed at the bottom of the panel. This number increases
with the sampling rate and the log progress is complete
once it reaches the Set log limit value. Alternatively, you
may press the Stop data log to file button to terminate the
process. Once the data has been imported to the specified
Excel file, the data may be easily evaluated.
Figure 31. Pulse Frequency Selection Menu
COMMUNICATION STATUS INDICATOR
06474-031
2.
06474-030
Figure 29. Data Logging
CONVERT PIN CONTROLS
06474-029
The Convert Pin Control panel applies only to the
ADM1175 device.
The Press to Stop Converting button allows you to stop a
continuous conversion.
The Convert Once button carries out a single conversion
by issuing a single pulse onto the CONV pin. The result of
the conversion appears in the data display panel in the top
right hand corner of the Main Panel.
The Continuously Converting… button begins a
continuous conversion by pulling the CONV pin high.
The results of the continuous conversion are displayed
in the data display panel.
Once the Pulse Convert line button is pressed, a dropdown menu appears as shown in Figure 31. You can choose
from one of four pulse frequencies. The four conversion
frequencies to choose from are once every 100 ms, 200 ms,
500 ms, or 1000 ms.
Note that in the case of the ADM1175 device, if you set
the Pulse Frequency, then you do not have the option of
changing the Readback update rate.
Figure 32. Device Communication Indicator
Under the Readback update rate panel, there is a communication status indicator, see Figure 32. This shows the status of the
connection between the software and the device. There are
three possible type of indication (see Figure 32).
The first type indicates normal communication. The second
type, the spinning logo, indicates data being read to/written
from/to the register. The third type indicates that communication between the device and the user interface has been lost.
The software should be restarted (use the Software ON/OFF
button) to reestablish communications with the device.
Figure 30. Convert Pin Control Panel
Rev. A | Page 13 of 20
UG-659 EVAL-ADM1175EBZ/EVAL-ADM1176EBZ/EVAL-ADM1177EBZ/EVAL-ADM1178EBZ
REAL-TIME GRAPHS OF VOLTAGE, CURRENT, AND POWER
06474-032
On the top right corner, the Pulse button allows you to pulse
the graph from real-time plotting. There is also a Scope Chart
selection drop-down menu that allows you to choose from one
of the three graph formats. The graph formats are: Strip Chart,
Scope Chart, and Sweep Chat. The default mode is Scope Chart.
Figure 33. Panel Selection Tabs
You can monitor the data using the software generated graphs.
There are three control panels and three graphs corresponding
to voltage, current, and power. Voltage and current graphs are
displayed using actual voltage and current data from the device.
The values for the power graph are calculated using, P = V × I.
06474-036
The tabs located on the top of the user interface allow you to
switch between the Main Panel and the voltage, current, and
power graphs.
Figure 37. Pulse Graph Button and Scope Type Selection Menu
The screen shot in Figure 38 shows the result of varying the supply
voltage. Notice that the power graph also changes as a result.
06474-037
Note that the Readback update rate, on the Main Panel,
sets the speed at which the ADC samples are taken and,
consequently, the speed at which the graphs update.
06474-033
Figure 38. Plot with Voltage Variation
Figure 34. Voltage, Current, and Power Plots
06474-034
The digitized values for voltage, current, and power are
displayed in the control panel on the left where different traces
are identified by different colors (see Figure 34 and Figure 35).
The screen shot in Figure 39 shows that the supply voltage
is constant but that the current is changing, as a result of
varying the load resistance by turning Switch VR1. Turning
VR1 clockwise reduces the load resistance, and hence the
current increases. Turning VR1 counterclockwise increases
the load resistance, and hence the current decreases. Notice
the variation of the power graph as the current graph changes.
Also note that once the current limit is reached, the FET is shut
down and no current flows through.
Figure 35. Trace Identifier
06474-035
Using the scale adjustment bar shown in Figure 36, you can
adjust the y-axis scale of the plots to optimize them.
06474-038
Figure 36. Scale Adjustment Bar
Figure 39. Plot with Current Variation
Rev. A | Page 14 of 20
EVAL-ADM1175EBZ/EVAL-ADM1176EBZ/EVAL-ADM1177EBZ/EVAL-ADM1178EBZ UG-659
EVALUATING MULTIPLE DEVICES IN PARALLEL
In the case of the ADM1175, ADM1177, and ADM1178, up to
four unique I2C addresses can be created allowing you to interconnect up to four devices. In the case of the ADM1176, up to
16 I2C addresses can be created allowing you to interconnect up
to 16 ADM1176 devices.
When interconnecting the ADM1175/ADM1176/ADM1177/
ADM1178 devices, each device is powered using a bench
supply of between 3.15 V and 16.5 V, connected to J3 (VIN)
and J4 (GND).
The first evaluation board should be connected to the PC using
a USB-SDP-CABLEZ and USB-I2C5W-ADPTZ adapter board
from the 5-pin header labeled J7. Each board is fitted with two
MiniMolex® interconnecters, J8 and J9. To interconnect
multiple boards use the provided red 5-pin MiniMolex cables.
06474-040
Each evaluation board is fitted with switches labeled A0 and A1.
A0 is used on the ADM1175/ADM1176/ADM1177/ADM1178
devices to assign an address, via the ADR pin, to that particular
device. For the ADM1176, A1 is also used in combination with
A0 to assign up to 16 I2C addresses. Be sure that each device has
a unique I2C address.
Figure 41. Multi Devices Sense Resistor Value Input Panel
Click OK and the evaluation software Main Panel appears (see
Figure 42).
COMMUNICATING WITH INTERCONNECTED
EVALUATION BOARDS
06474-041
Figure 40 displays the result of the device address search when
four ADM1175/ADM1176/ADM1177/ADM1178 boards have
been cascaded. Note that the I2C addresses of the four devices
are highlighted in green.
Figure 42. Main Panel for Multiple Devices
06474-042
Note the presence of a drop-down menu entitled Device
selector (see Figure 43).
06474-039
Figure 43. Multidevice Selector
Figure 40. Device Address Search for Four Interconnected ADM1175/
ADM1176/ADM1177/ADM1178 Devices
Click OK to access the Sense Resistor Value window (see
Figure 41). Enter the value of the current-sense resistors; the
default value of R3 is 0.2 Ω.
The Device selector drop-down menu allows you to select each
device individually and select the configuration settings for that
device. Select the range and reading method then click Write
Data To Command Register to pass the change to the register
of the device.
The voltage, current, and power graphs can be viewed by
selecting the V, I & P graphs 1-4 tab.
Rev. A | Page 15 of 20
UG-659 EVAL-ADM1175EBZ/EVAL-ADM1176EBZ/EVAL-ADM1177EBZ/EVAL-ADM1178EBZ
The digitized values for voltage, current, and power are displayed in
the control panel on the left (see Figure 44). Select which traces
to view by clicking the check box to the left of each trace name.
You can also scale the y-axis of the plots for ease of viewing.
In Figure 46, the supply voltage is constant. The current
associated with traces are varied. The current is varied by
changing the load resistance. Turning VR1 clockwise on each
respective evaluation board reduces the load resistance, hence
the current increases, and vice versa.
06474-043
In Figure 47, the Main Panel is shown for five interconnected
boards. Note that there is an extra tab entitled V, I & P graphs 5-8.
Figure 44. Multiple Device Voltage, Current, and Power Plot
06474-046
Figure 45 depicts the result of altering the input voltage. Note
the corresponding change on the power graph.
Figure 47. Main Panel for Five Devices
06474-047
The first four traces are graphed within the tab entitled V, I
& P graphs 1-4, the next four traces are is graphed in the tab
entitled V, I & P graphs 5-8 as shown in Figure 48.
06474-044
Figure 48. Multiple Device Panel Selection Tab
06474-048
Figure 45. Multiple Device Plot with Voltage Variation
06474-045
Figure 49. Multiple Devices Plotting Screen for Device 1 to Device 4
Four traces are displayed on each graph tab to a maximum
of 16 traces on four graph tabs when 16 ADM1176 devices are
set up in parallel.
Figure 46. Multiple Device Plot with Current Variation
Rev. A | Page 16 of 20
EVAL-ADM1175EBZ/EVAL-ADM1176EBZ/EVAL-ADM1177EBZ/EVAL-ADM1178EBZ UG-659
EVALUATION BOARD SCHEMATIC
06474-049
Figure 50. ADM1175/ADM1176/ADM1177/ADM1178 Evaluation Board Schematic
Rev. A | Page 17 of 20
UG-659 EVAL-ADM1175EBZ/EVAL-ADM1176EBZ/EVAL-ADM1177EBZ/EVAL-ADM1178EBZ
ORDERING INFORMATION
BILL OF MATERIALS
Table 5.
Qty
1
Reference
Designator
C1
2
C2, C11
1
C3
1
C4
1
C5
3
C6, C8, C17
1
1
C7
C9
1
C10
1
C12
1
C13
1
C14
2
C15, C16
3
D1, D3, D4
1
2
2
D2
GND1, GND2
J1, J2
2
2
Description
4.7 nF, 10%, 0805 multilayer ceramic
capacitor, SMD
47 nF, 10%, 0805 multilayer ceramic
capacitor, SMD
470 nF, 10%, 0805 multilayer ceramic
capacitor, SMD
User-defined, 0805 capacitor footprint,
not inserted, SMD
Through-hole capacitor, not inserted,
user-defined, CAP\MR04
0.1 μF, 10%, 0805 multilayer ceramic
capacitor, SMD
10 µF, 10 V tantalum capacitor, 10%, SMD
1 nF, 5% 0805 multilayer ceramic
capacitor, SMD
10 nF, 10%, 0805 multilayer ceramic
capacitor, SMD
Through-hole capacitor, not inserted,
user-defined, CAP\MR04
0805 capacitor footprint, not inserted,
user-defined, SMD
100 µF, 10 V tantalum capacitor, 10%, SMD
Manufacturer
Phycomp
Manufacturer
Number
2238 580 15632
Supplier Number1
FEC 3019913
Phycomp
2238 580 15645
FEC 718683
Multicomp
B0805R474KCT
FEC 9406336
Multicomp
U0805R104KCT
Insert low profile
sockets
FEC 9406387
AVX
AVX
TPSA106K010R1800
08055A102JAT2A
FEC 1135105
FEC 317457
Multicomp
U0805R103KCT
FEC 9406352
Insert low profile
sockets
AVX
TAJC107K010R
FEC 197180
10 pF, 5%, 0603 multilayer ceramic
capacitor, SMD
Red SMD LED, 0805
Epcos
B37930K5100J60
FEC 9753478
Avago Technologies
HLMP-6000-E0011
FEC 1003354
NXP
Vero
Harwin
J3, J5
3.3 V, 5%, SOT23, Zener diode, SMD
Black testpoint
4-pin (2 × 2) header and shorting block,
PCB_SELECTOR_PLUG_DIP4
Red 4 mm banana socket
BZX84-C3V3
20-2137
D3086-98/ H3161-01/
D3086-98
571-0500-01
FEC 1081419
FEC 8731128
FEC 149318/
FEC 49306
FEC 1101127
J4, J6
Black 4 mm banana socket
Deltron
571-0100-01
FEC 1101128
1
J7
5 Pin header, HEADER05, SIP-5P-RA
Molex
22-12-2054
FEC 3116890
2
J8, J9
6-way SMD straight mini header
Molex
533980671
FEC 1125368
3
LK1, LK4, LK5
Harwin
2
LK2, LK3
1
P10
2-pin (0.1" pitch) header and shorting shunt,
jumper, SIP-2P
3-pin (0.1" pitch) header and shorting shunt,
JUMPER2\SIP3, LINK-3P
TO-220 heatsink for FET Q2
AAVID Thermalloy
M20-9990246/
M7566-05
M20-9990346/
M7566-05
TV40
FEC 1022247/
FEC 150411
FEC 1022249/
FEC 150411
FEC 170074
1
Q1
International Rectifier
IRF3808SPBF
FEC 1013377
1
Q2
FEC 9845151
Q3, Q4
Fairchild
Semiconductor
On Semiconductors
FDP7030BL
2
MOSFET, N, D2-PAK, IRFR_U3910 triple
footprint
MOSFET, N, logic,
TO-220_EXPOSED_PAD_HEATSINK
NPN small signal transistor, SOT-23, SMD
BC849BLT1G
FEC 9558616
2
R1, R2
1
2
Deltron
Harwin
R3
Through-hole resistor location, RES-1/4W,
not populated
0.2 Ω, 1%, 2512 current-sense SMD resistor
Welwyn
LR2512-R20FW
Insert low profile
sockets
FEC 1100068
R4, R7
150 kΩ, 1%, 0805 SMD resistor
Multicomp
MC 0.1W 0805 1% 150K
FEC 9332626
2
R5, R6
1.8 kΩ, 1%, 0805 SMD resistor
Multicomp
MC 0.1W 0805 1% 1K8
FEC 9332715
1
R8
100 kΩ, 1%, 0805 SMD resistor
Multicomp
MC 0.1W 0805 1% 100K
FEC 9332405
6
1 kΩ, 1%, 0805 SMD resistor
Multicomp
MC 0.1W 0805 1% 1K
FEC 9332383
1
R9, R14, R15,
R16, R17, R18
R10
100 Ω, 1%, 0805 SMD resistor
Multicomp
MC 0.1W 0805 1% 100R
FEC 9332375
1
R11
2.2 kΩ, 1%, 0805 SMD resistor
Multicomp
MC 0.1W 0805 1% 2K2
FEC 9332812
1
R12
10 Ω, 1%, 0805 SMD resistor
Multicomp
MC 0.1W 0805 1% 10R
FEC 9332421
Rev. A | Page 18 of 20
EVAL-ADM1175EBZ/EVAL-ADM1176EBZ/EVAL-ADM1177EBZ/EVAL-ADM1178EBZ UG-659
Qty
1
Reference
Designator
R13
Description
1 Ω, 5%, 1W, 2512 SMD resistor
Manufacturer
Phycomp
Manufacturer
Number
232276260108
Supplier Number1
FEC 9235833
1
R22
4.7 kΩ, 1%, 0805 SMD resistor
Multicomp
MC 0.1W 0805 1% 4K7
FEC 9333266
1
S1
2-way SMD switch
A6S-2102
FEC 9901850
4
S2, S3, S4, S5
4-way SMD switch
A6S-4101
FEC 9901868
1
S6
SMD push button switch (sealed)
Omron Electronic
Components
Omron Electronic
Components
Omron Electronic
Components
B3S-1000
FEC 177807
1
S7
Slide switch
Alps
STSSS9121
FEC 1123875
15
Red testpoint
Vero
20-313137
FEC 8731144
1
3V3, A0, SCL, SDA,
SENSE, T1, T2, T3, T4,
TIMER, VCC, VDRAIN,
VGATE, VIN, VSOURCE,
ON_ONB
U1
Wells
656-0102211
1
U2
10-pin MSOP socket, ADM117Y_SOCKET,
MSO10-SKT
3.3 V regulator, TO-923
STMicroelectronics
LE33CZ
Abrel Products
656-0102211
FEC 9755349
1
U3
Analog Devices.
ADM117x-2ARMZ
1
VR1
Vishay Spectrol
63M-T607-202
1
MSO10, SMD, ADM1175-2ARMZ/ADM11762ARMZ/ADM1177-2ARMZ/ADM1178-2ARMZ
Trimmer potentiometer, VRES ROTARY 2K
FEC = Farnell Electronics.
Rev. A | Page 19 of 20
FEC 9608214
UG-659 EVAL-ADM1175EBZ/EVAL-ADM1176EBZ/EVAL-ADM1177EBZ/EVAL-ADM1178EBZ
NOTES
ESD Caution
ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection
circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.
Legal Terms and Conditions
By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions
set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you
have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc.
(“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal,
temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided
for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional
limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term
“Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including
ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may
not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to
promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any
occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board.
Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice
to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO
WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED
TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL
PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF
THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE
AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable
United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of
Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby
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©2008–2014 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
UG06474-0-5/14(A)
Rev. A | Page 20 of 20