Peripheral Integrated Circuits

Peripheral Integrated Circuits

Peripheral Integrated Circuits

Peripheral Integrated Circuits

In addition to GMR Sensor products, NVE has begun designing and manufacturing accessory products for our sensors. These products are designed to be used with NVE’s sensors, or in some cases as standalone parts, to provide higher level signal processing capabilities coupled with the robust performance characteristics that NVE products are known for.

DB-Series Power Switch ICs – In many industrial control applications, a digital current output of up to 200 mA is required. NVE’s DB-Series parts are designed to meet these requirements. They feature transient protection to meet rigid EMC and ESD standards, thermal shutdown for temperature protection, reverse battery protection, a regulated voltage output, an on-chip LED driver, and short circuit protection of the current drive output transistor. The DB001-00 is designed specifically to work together with NVE’s AD9xx-00 short circuit protected GMR switch to create a very small IC combination suitable for use in miniature sensor assemblies. The DB002-02 is designed to take a generic digital input from any source, including inductive and photo sensors, and provide the digital current output.

DC Series Voltage Regulator ICs – These ICs are designed for use in high voltage, low current applications. They provide a wide input voltage range, up to 60V, and are available in 3.3V and 5.0V outputs. They feature reverse battery protection and excellent immunity to transients and noise allowing for the reduction or elimination of filtering devices at the PCB level. They are available in the

TDFN6 package, which features a small PCB footprint (2.5 mm x 2.5 mm) and an exposed lead frame on the back for heat sinking to the PCB. DC series voltage regulators meet 42V automotive standards.

DD-Series Signal Processing IC for Analog GT Sensors – The DD001-12 is designed to be interfaced with an NVE ABL-Series GT Sensor to provide a digital output signal with excellent stability characteristics. It can be located away from the sensor so that the ABL package (MSOP8 or

TDFN6) can be placed in a small remote housing, resulting in the absolute minimum size sensor package. The DD001-12 can also be used with other sensing devices which feature a sinusoidal output, to provide the same stable current modulated signal that it provides for NVE’s ABL-Series GT

Sensors.

- 61 www.nve.com

phone: 952-829-9217 fax: 952-829-9189

Peripheral Integrated Circuits

DB001-00 Series Power Switch IC

Features:

• Designed to Work with AD9xx

• High Current Output

• Short Circuit, Reverse Battery, and Transient Protection

• LED Driver

• Excellent Temperature and Voltage Performance

• Small, Low-Profile Surface Mount Package

Applications:

• Output Driver for Sensor Assemblies

• Usable with Magnetic, Inductive, and Photo Sensors

Description:

The DB001-00 signal processing IC is designed to take the digital input signal from NVE’s AD9xx

GMR Switch and provide a high current switched output corresponding with the sensor input. The part functions as the “front end” of a complete sensor assembly and includes protection against short circuits and high voltage transients from capacitive and inductive loads. The parts also feature thermal shutdown circuitry and reverse battery protection. It provides a regulated output voltage for the sensor and other components in the assembly and an LED driver to indicate an “ON” condition.

Together, the AD9xx GMR Switch and the DB001-00 signal processing IC form the bulk of the signal processing required for pneumatic cylinder position sensing electronics. Using these two ICs, the end user only requires a few capacitors and an LED in order to implement the complete sensor assembly circuit. In addition, both the AD9xx part and the DB001-00 part come in MSOP8 packages, so that the customer can implement the complete design on an extremely small PCB.

If ultra-miniaturization is desired, the DB001 part can be obtained in die form for COB (Chip On

Board) or flip-chip assembly.

Part Numbers and Configurations:

Part

DB001-00

DB001-01

Current Sinking from

AD9xx-00

Current Sinking from

AD9xx-00

Die Marking

1.48 x 2.25 MSOP8 FFD

1.48 x 2.25 Raw IC 30284D

- 62 www.nve.com

phone: 952-829-9217 fax: 952-829-9189

Peripheral Integrated Circuits

Schematic:

A block representation of the DB001-00 series part is shown below:

3.3 Volts

VCC

Sink Out

Voltage

Regulator

Vreg

Input

Amplifier

Source Out

Thermal

Shutdown

LED

Ground ISC

Packages:

Please see the package drawing section in the Appendix for dimensions of the MSOP8 package.

Pin Configuration:

VCC

ISC

Source

Out

Sink Out

NVE

FFD

Vreg

In

LED

Ground

- 63 www.nve.com

phone: 952-829-9217 fax: 952-829-9189

Peripheral Integrated Circuits

Application Circuits:

DB001-00 in Current Sourcing Output Configuration:

VCC

Ground Vreg Vreg VCC

Source

Cap

AD9xx-xx

Cross Axis

Sink

ShortL

In

LED

ISC

Source

Out

Out

Cap2 VCC Ground Sink Out

t

1

Cap t

2

Cap

Ground

Note: For current-sinking applications, connect “Source Out” to Ground; use “Sink Out” pin as output.

Electrical characteristics (-40°C to +125°C, unless otherwise noted)

Parameter Min Units

Input Voltage 4.5 30 V

Vreg Voltage

Vreg Output Current

Switched Output Current

Capacitive Load

Off State Output Leakage Current

Bias Current (output off)

LED Drive Current

Thermal Shutdown Temperature

Sinking Input Current Required

Output Transistor Saturation Voltage

Output Short Circuit Current

3.0

0.5

0.5

3.3

1.0

3

200

100

1.1

0.84

3.6

10

200

100

300

1.5

1.0

V mA mA nF

µ

A mA mA

°C

µ

A

V

A

Absolute maximum ratings*

*Stresses beyond those listed under “Absolute

Input Voltage

Reverse Battery Protection

Output Current

Junction Temperature Range, T

J

Storage Temperature Range

Notes

:

36 V

-36 V

250 mA

-40

°

C to +170°C

-65 °C to +170°C

1. This part has reverse battery protection to

-

36V damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “Electrical characteristics” is not implied.

2. Due to package size, MSOP8 package contains 3-letter code to designate part type.

- 64 www.nve.com

phone: 952-829-9217 fax: 952-829-9189

Peripheral Integrated Circuits

DB002-02 Series Power Switch IC

Features:

• Designed to Work with Magnetic, Inductive, or Photo Sensors

• Up to 300 mA Continuous Current Output

• Short Circuit, Reverse Battery, Transient and Thermal Protection

• On-Chip LED Driver

• Excellent Temperature and Voltage Performance

• Available in SOIC8 Package or in Die Form

Applications:

• Output Driver for Sensor Assemblies

• Usable with Magnetic, Inductive, and Photo Sensors

Description:

The DB002 series power switch IC is designed to take a digital input from a sensor element and provide a high current switched output corresponding with the sensor input

.

The part functions as the

“front end” of a complete sensor assembly and includes protection against short circuits and high voltage transients from capacitive and inductive loads

.

The part also features thermal shutdown circuitry and reverse battery protection

.

It provides a regulated output voltage for the sensor and other components in the assembly and an LED driver to indicate an “ON” condition.

The DB002 is available in the SOIC8 package (p/n DB002-02), as well as in die form (p/n DB002-01)

.

It is designed to work with NVE’s AD1xx GMR Switch products, or any other current sourcing or

CMOS/TTL digital output sensor element such as an inductive sensor or a photo sensor.

Part Numbers and Configurations:

Part

Number

DB002-01

DB002-02

Input

Any Current Sourcing or CMOS/TTL

Compatible Digital Output Device

Any Current Sourcing or CMOS/TTL

Compatible Digital Output Device

Die Size

(mm)

1.89 x 2.85

1.89 x 2.85

Package Marking

Die

30304H

(Chip ID Number)

SOIC8 DB002-02

- 65 www.nve.com

phone: 952-829-9217 fax: 952-829-9189

Functional Block Diagram and Pinout:

Peripheral Integrated Circuits

5.0 Volts

VCC

Sink Out

Voltage

Regulator

Vreg

Input

Amplifier

Source Out

Thermal

Shutdown

Short Circuit Detection

Circuitry

LED

Cap Ground

Input Ground

Vreg Delay

DB002-02

VCC

Source

Out

Sink

Out

Packages:

LED

Please see the package drawing section in the Appendix for dimensions of the SOIC8 package.

- 66 www.nve.com

phone: 952-829-9217 fax: 952-829-9189

Peripheral Integrated Circuits

Example Application Circuit:

VCC

N/C VCC Vreg VCC

AD124-00

N/C

N/C

Cross Axis

Source

N/C

Delay

In

DB002-02

NVE

LED

Source

Out

Out

Ground Ground Sink Out N/C

Delay

Cap

Ground

Notes on Operation:

1. A capacitor of at least 1nF value must be placed between the Delay pin and ground on the IC.

2. NVE recommends a bypass capacitor between VCC and Ground, 10nF or larger

3. In noisy environments a capacitor may be used on Vreg if necessary, up to 100nF.

Electrical characteristics (-40°C to +125°C, unless otherwise noted)

Parameter

Input Voltage

Vreg Voltage

Vreg Output Current

Switched Output Current

Capacitive Load

Off State Output Leakage Current

Junction Temperature Range, T

J

Storage Temperature Range

Min Typ Max

6.2 30

4.5 5.0 5.5

10

300

100

300

Bias Current (output off)

LED Drive Current

Thermal Shutdown Temperature

Sourcing Input Current or CMOS/TTL

Drive Current Required (DB002-02)

Turn-On Voltage at Input Terminal

Turn-Off Voltage at Input Terminal

On/Off Hysteresis

Output Transistor Saturation Voltage

Short Circuit Protection Turn-On

Current

1.4

3

200

5

2.0

0.5

0.25

1.1

3.0

1.5

400 650

Output Short Circuit Current 0.5

Absolute maximum ratings*

0.84 1.0

Parameter

Input Voltage

Reverse Battery Protection

Output Current

Limit

36V

-36V

350mA

-40

°

C to +170°C

-65 °C to +170°C

Units

V

V mA mA nF

µ

A mA mA

°C

µ

A

V

V

V

V mA

A

*Stresses beyond those listed under “Absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “Electrical characteristics” is not implied.

- 67 www.nve.com

phone: 952-829-9217 fax: 952-829-9189

Peripheral Integrated Circuits

DC-Series Voltage Regulators

High Voltage, Low Power Voltage Regulators

Features:

• Input Voltage to 36VDC (Max Rating 45VDC)

• 5.0V and 3.3V Regulated Output

• Reverse Battery Protection

• Excellent Immunity to Transients and ESD

• High Temperature Operation

• Small, Low-Profile Surface Mount Package

Applications:

• Industrial Sensors and Controls

• Automotive Sensors and Controls

Description:

The DC series voltage regulator ICs are designed for use in harsh, noisy environments where immunity to large voltage transients and acceptance of high input voltages are required

.

These regulators protect the sensitive electronic components downstream, while providing a stable regulated supply voltage

.

They are rated for high temperature operation, up to +170°C

.

The low-profile small footprint package features an exposed die attach pad, for direct heat sinking to the circuit board.

Specifications

Electrical characteristics (-40°C to +175°C, unless otherwise noted)

Parameter Min Units

Input Voltage (DC001-10)

Output Voltage (DC001-10)

Input Voltage (DC002-10)

Output Voltage (DC002-10)

Output Current

Bias Current at Zero Output Current

4.5

3.0

6.2

4.5

3.3

5.0

36

3.6

36

5.5

20

900

Volts

Volts

Volts

Volts

Milliamps

Microamps

Absolute maximum ratings*

*Stresses beyond those listed under “Absolute

Input Voltage

Reverse Battery Voltage

Output Current

Junction Temperature Range, T

J

Storage Temperature Range

45V

-60V

25mA

-40

°

C to +170

°

C

-65 °C to +170°C to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under

“Electrical characteristics” is not implied.

- 68 www.nve.com

phone: 952-829-9217 fax: 952-829-9189

Peripheral Integrated Circuits

Notes:

1. Power dissipation rating for TDFN6 package in free air is 320°C/Watt. Soldering the package to a PCB, including the die attach paddle, improves temperature performance substantially. The input voltage and output current are limited by thermal power dissipation at the package.

2. Due to package size, TDFN6 package has a three-letter code to designate part type.

Package:

Please see the package drawing section in the Appendix for dimensions of the TDFN6 package.

Pin Configuration

Vreg (Out)

No Connect

VCC (In)

DC001-10,

DC002-10

No Connect

Ground

No Connect

Note: The die attach pad is exposed on the back of this package. NVE recommends that it be connected to the ground pin and the PCB for improved temperature performance.

- 69 www.nve.com

phone: 952-829-9217 fax: 952-829-9189

Peripheral Integrated Circuits

DD-Series Signal Processing ICs

For use with ABL-Series Sensors

Features:

• Converts Analog Sensor to Digital Operation

• Two-Wire Output

• 50% Duty Cycle

• DC (Zero Speed) Operation

• Excellent Temperature and Voltage Performance

• Small, Low-Profile Surface Mount Package

Applications:

• Linear and Angular Speed Sensing

• Linear and Angular Position Sensing

• Direction Detection

Description:

The DD-Series signal processing IC is designed to take an analog, sinusoidal input signal such as that provided by NVE’s ABL-Series sensors and convert it to a two wire, current modulated digital output.

Inputs as small as 2 mV peak-to-peak can be provided to the IC, along with large signal offsets. The

DD001-12 part will provide a 50% duty cycle digital output signal.

The DD001-12 part contains a voltage regulator circuit, programmable amplifier, offset detection and correction circuitry, and an EEPROM for setting gain and current levels. The voltage regulator output

(3.3V) is used to power the external sensor element, which should be connected between V

REG

and

V

GND

. Nominal current levels for the current modulated output are 3 mA and 10 mA. These can be factory programmed to different levels for specific customer requirements.

Using the DD-Series signal processing IC allows the user to put the sensor element, which can very small in a remote location, and pipe the signals from the sensor to the DD001-12 for digitizing purposes. In addition, if two phase shifted sensor outputs are available (such as with the ABL014-00,

ABL015-00, and ABL015-00sensors), two DD001-12 parts can be used to provide two phase shifted digital signals, for the purpose of detecting the direction of the gear tooth or encoder wheel.

The two-wire output of the DD001-12 can be easily converted to a three-wire current-sinking output with the circuit shown in the GT Sensor applications section.

- 70 www.nve.com

phone: 952-829-9217 fax: 952-829-9189

Peripheral Integrated Circuits

Specifications:

Parameter

Input Voltage

Input Voltage Signal

Input Current

Min Typ Max Unit

4.5 36 Volts

1

2 200

10 mV

2

µ

A mA

3

Supply Current – Off

(Input Voltage=12V)

Supply Current – On

(Input Voltage=12V)

Output Duty Cycle

Regulated Voltage Output

Current Supplied by Regulated Voltage Output

Operating Temperature Range

Frequency of Operation mA

3

40

3.0

-40

0

50

3.3

60

3.6

10

+150

10k

%

Volts mA

°

C

Hz

Absolute Maximum Ratings

Parameter Limit

Supply Voltage

Reverse Battery Voltage

Output Current

Junction Temperature Range

Storage Temperature Range

45V

-60V

16mA

-40

°

C to +170

°

C

-65

°

C to +170

°

C

Signal Output

10

Current

Output

(mA)

5

Time

Notes:

1. The supply voltage must appear across the power and ground terminals of the part. Any additional voltage drop due to the presence of a series resistor is not included in this specification.

2. Input signal range can be adjusted by programming the amplifier gain to a specific value; contact NVE for details.

3. Supply currents can be factory programmed to different levels, for example 3 mA and 6 mA, or 7 mA and 14 mA; contact

NVE for details.

4. Pin-to-pin voltage, Human Body Model for ESD.

- 71 www.nve.com

phone: 952-829-9217 fax: 952-829-9189

Peripheral Integrated Circuits

Schematic:

A block representation of the DD-Series parts is shown below:

Vreg

Voltage

Regulator

3.3V

Switching

Current

Source

Bridge +

Bridge -

Offset

Detector

EEPROM

Gain

Current Level

Packages:

The DD-Series parts are available in the TDFN SO8 package. Please see the package drawing section in this catalog for dimensions.

Pin Configuration:

TDFN-SO8 Package

Test

Vreg

VCC

DD001-12

Test

Test

Bridge+

Note: Bridge + and Bridge

-

should be connected only to the sensor element outputs for ESD and loading reasons. Vreg can supply up to 10 mA at 3.3V (330

Ω load). Also, all pins labeled “Test” must be floating, i.e., not connected to each other or any other circuit node.

Ground Bridge-

- 72 www.nve.com

phone: 952-829-9217 fax: 952-829-9189

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

Download PDF

advertisement