SS539

Bipolar Hall-Effect Position Sensor

Packages

Features and Benefits

–

4.5V to 24V Operation

–

-40℃ to 150℃ Superior temperature operation

–

Bipolar technology

–

Open-collector 25 mA output

–

Reverse battery protection

–

Solid-state reliability

–

Resistant to physical stress

–

Small Size-SOT23 3L and SIP 3L

–

Activate with small, commercially available

3 pin SOT23 (suffix SO)

3 pin SIP (suffix UA)

Permanent magnets

 

Functional Block Diagram

Application Examples

–

Automotive, Consumer and Industrial

–

Solid-state switch

–

Brushless DC motor commutation

–

Speed measurement

–

Angular position detection

–

Revolution counting

–

Proximity detection

 

General Description

The SS539 is an integrated Hall effect latched sensor

designed for electronic commutation of brush-less DC

motor applications. The device integrates a voltage

regulator, reverse battery protection diode, Hall sensor

with dynamic offset cancellation system, temperature

compensation circuitry, small signal amplifier, Schmitt

trigger and an open-collector output to sink up to 25 mA

These Hall-effect switches are monolithic integrated circuits with tighter magnetic specifications, designed to operate

continuously over extended temperatures to +150 ,

℃

and are more stable with both temperature and supply voltage

changes. If a magnetic flux density larger than threshold Bop, Output is turned on (low). The output state is held until a

Thanks to its wide operating voltage range and extended choice of temperature range, it is quite suitable for use in DC

motor applications.

The device is delivered in a Small Outline Transistor (SOT) or in a Plastic Single In Line ( SIP 3L flat). Both 3-lead

packages are RoHS compliant.

SIP Package

SOT Package

Pin 2 – GND

Pin 2 – OUT

Pin 3 – OUT

Pin 3 – GND

 

1

V2.10

May 1, 2012