SS539

Bipolar Hall-Effect Position Sensor

1

V3.10

Nov 1, 2013

Packages

Features and Benefits

3 pin SOT23 (suffix SO)

3 pin SIP (suffix UA)

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4.5V to 24V Operation

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-40°C to 150°C Superior temperature opera-

tion

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Bipolar technology

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Open-collector 25 mA output

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Reverse battery protection

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Solid-state reliability

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Resistant to physical stress

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Small Size-SOT23 3L and SIP 3L

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Activate with small, commercially available

Permanent magnets

Functional Block Diagram

Application Examples

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Automotive, Consumer and Industrial

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Solid-state switch

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Brushless DC motor commutation

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Speed measurement

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Angular position detection

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Revolution counting

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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 sen-

sor with dynamic offset cancellation system, temper-

ature 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 op-

erate continuously over extended temperatures to +150°C, 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

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