SS199

Unipolar Hall Switch-Low Sensitivity

Packages

Features and Benefits

–

3.5V to 24V Operation

–

-40℃ to 150℃ Superior temperature operation

–

CMOS technology

–

Low current consumption

–

Chopper-stabilized amplifier stage

–

Open drain output

–

Low sensitivity

3 pin SOT23 (suffix SO)

3 pin SIP (suffix UA)

–

Small Size-SOT23 3L or 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

–

Current detector

 

General Description

The SS199 is a unipolar Hall-effect sensor IC fabricated

from CMOS technology. The device integrates a voltage

regulator, Hall sensor with dynamic offset cancellation

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 operate

continuously over extended temperatures to +150 ,

℃

and are more stable with both temperature and supply voltage

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

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.

VDD

OUT

Voltage

Regulator

Chopper

Hall

Plate

GND

SIP Package

SOT Package

Pin 2 – GND

Pin 2 – OUT

Pin 3 – OUT

Pin 3 – GND

 

1

V2.10

May 1, 2012