SS1101

Unipolar Hall Switch-Low Sensitivity

2

V2.00

May 1, 2012

General

Description

The SS1101 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°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.

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),

Gauss 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