SS2881

Hall Latch - High Sensitivity

1

V3.10

Nov 1, 2013

Packages

Features and Benefits

3 pin SOT23 (suffix SO)

3 pin SIP (suffix UA)

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Wide operating voltage range from 3.5V to

24V

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High magnetic sensitivity – Multi-purpose

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CMOS technology

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Low current consumption

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Chopper-stabilized amplifier stage

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Open drain output

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Superior temperature stability

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Insensitive to physical stress

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SOT23 3L and flat SIP 3L

both RoHS Compliant packages

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 detection

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Angular position detection

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Linear position detection

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Proximity detection

General Description

The SS2881 is a Hall-effect sensor IC fabricated from

mixed signal CMOS technology. The device inte-

grates a voltage regulator, Hall sensor with dynamic

offset cancellation system, Schmitt trigger and an

open-drain output driver, all in a single package.

It incorporates advanced chopper stabilization techniques to provide accurate and stable magnetic switch points.

There are many applications for this HED - Hall Electronic Device - in addition to those listed above. The design,

specifications and performance have been optimized for commutation applications in 5V and 12V brushless DC

motors.

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

automotive, industrial and consumer applications.

The device is delivered in a Small Outline Transistor (SOT) for surface mount process or in a Plastic Single In

Line (TO92) for through- hole mount. Both 3-lead packages are RoHS compliant.

OUT

Voltage

Regulator

Chopper

Hall

Plate

GND

SIP Package

SOT Package

Pin 2 – GND

Pin 2 – OUT

Pin 3 – OUT

Pin 3 – GND