SS118

Unipolar Hall-Effect Digital Switch

2

V3.10

Nov 1, 2013

General

Description

The SS118 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 integrat-

ed circuits with tighter magnetic specifications,

designed to operate continuously over extended

temperatures to +150°C,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.

Glossary of Terms

MilliTesla (mT),Gauss

Units of magnetic flux density: 1mT = 10 Gauss

RoHS

Restriction of Hazardous Substances

Operating Point (BOP)

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

Release Point (BRP)

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