Description

TheATS692LSH is an optimized Hall-effect integrated circuit

(IC) and rare earth pellet combination that provides a user-

friendly solution for direction detection and true zero-speed,

digital gear tooth sensing. The small package can be easily

assembled and used in conjunction with a wide variety of gear

tooth sensing applications.

The IC employs patented algorithms for the special operational

requirements of automotive transmission applications. The

speed and direction of the target are communicated through a

variablepulsewidthoutputprotocol.TheATS692isparticularly

adept at handling vibration without sacrificing maximum air

gap capability or creating any erroneous direction information.

Even higher angular vibration caused by engine cranking is

completely rejected by the device. The advanced vibration

detection algorithm systematically calibrates the sensor IC

on the initial teeth of true target rotation and not on vibration,

always guaranteeing an accurate signal in running mode.

Advanced signal processing and innovative algorithms make

the ATS692 an ideal solution for a wide range of speed and

direction sensing needs.

This device is available in a lead (Pb) free 4-pin SIP package

with a 100% matte tin plated leadframe.

ATS692LSH1-DS, Rev. 3

Features and Benefits

• Two-wire, pulse width output protocol

• Digital output representing target profile

• Speed and direction information of target

• Vibration tolerance

▫ Small signal lockout for small amplitude vibration

▫ Proprietary vibration detection algorithms for large

amplitude vibration

• Air gap independent switch points

• Large operating air gap capability

• Undervoltage lockout

• True zero-speed operation

• Wide operating voltage range

• Single chip sensing IC for high reliability

• Robust test coverage capability with Scan Path and IDDQ

measurement

Two-Wire, Differential, Vibration Resistant

Sensor IC with Speed and Direction Output

Package: 4-pin SIP (suffix SH)

Functional Block Diagram

Not to scale

ATS692LSH(RSNPH)

Synchronous

Digital Controller

Hall Amp

ADC

Offset

Adjust

Offset

Adjust

Regulator

(Analog)

VCC

TEST

Multiplexed

Test Signals

GND

Regulator

(Digital)

Hall Amp

ADC

AGC

AGC

Filter

Filter