SS199

Unipolar Hall Switch-Low 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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3.5V to 24V Operation

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-40°C to 150°C Superior temperature operation

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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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Low sensitivity

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Small Size SOT23 3L and 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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Proximity detection

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Current detector

General Description

The SS199 is a unipolar Hall-effect sensor IC fabricat-

ed from CMOS technology. The device integrates a

voltage regulator, Hall sensor with dynamic offset can-

cellation system, small signal amplifier, Schmitt trigger

and an open-drain output driver. With suitable output

pull up, they can be used with bipolar or CMOS logic

circuits.

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

ate continuously over extended temperatures to +150°C, and are more stable with both temperature and supply volt-

age changes. The unipolar switching characteristic makes these devices ideal for use with a simple bar or rod mag-

net.

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) or in a Plastic Single In Line ( SIP 3L flat). 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