SS443

Unipolar Hall-Effect Digital Switch

2

V2.00

May 1, 2012

General

Description

The SS443 is a unipolar Hall-effect sensor IC fabricated from

bipolar technology. 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. 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.

Glossary of Terms

MilliTesla (mT),

Units of magnetic flux density: 1mT = 10 Gauss

RoHS

Restriction of Hazardous Substances

Magnetic flux density applied on the branded side of the package which turns the output

Magnetic flux density applied on the branded side of the package which turns the output