HAL114

MICRONAS INTERMETALL

2

Unipolar Hall Switch IC

in CMOS technology

Introduction

The HAL114 is a Hall switch produced in CMOS technol-

ogy. The sensor includes a temperature-compensated

Hall plate, a Schmitt trigger, and an open-drain output

transistor (see Fig. 2).

The HAL114 has a unipolar behavior: The output turns

low with a magnetic south pole on the branded side of

the package (see figures 3 and 4). The output turns high

if the magnetic field is removed. The output signal re-

mains high if the magnetic north pole approaches the

branded side of the package.

The sensor is designed for industrial and automotive ap-

plications and operates with supply voltages from 4.5 V

to 24 V in the ambient temperature range from –40

°C up

to 150

°C.

The HAL114 is available in a SMD-package (SOT-89A)

and in a leaded version (TO-92UA).

Features:

– operates from 4.5 V to 24 V supply voltage

– overvoltage protection

– short-circuit protected open-drain output by thermal

shutdown

– operates with magnetic fields from DC to 20 kHz

– stable magnetic switching points over a wide supply

voltage range

– the decrease of magnetic flux density caused by rising

temperature in the sensor system is compensated by

a built-in negative temperature coefficient of the mag-

netic switching points

– ideal sensor for contactless switches and speed mea-

surement in hostile automotive and industrial environ-

ments

Specifications

– switching type: unipolar

– output turns low with magnetic south pole on branded

side of package

– output turns high if magnetic field is removed

Marking Code

Type

Temperature Range

A

E

C

HAL 114SO,

HAL 114UA

114A

114E

114C

Hall Sensor Package Codes

Type: 114

HAL XXXPA-T

Temperature Range: A, E, or C

Package: SO for SOT-89A,

UA for TO-92UA

→ Type: 114

→ Package: TO-92UA

Example: HAL 114UA-E

Hall sensors are available in a wide variety of packaging

versions and quantities. For more detailed information,

please refer to the brochure: “Ordering Codes for Hall

Sensors”.

Solderability

– Package SOT-89A: according to IEC68-2-58

– Package TO-92UA: according to IEC68-2-20

OUT

GND

3

2

1

Fig. 1: Pin configuration