HAL1xy

DATA SHEET

4

April 8, 2009; DSH000150_001EN

Micronas

Hall-Effect Switch IC Family

Note: The HAL1xy family has been designed for com-

mercial and industrial applications. It is not intended to

be used in automotive or automotive-like applications.

1. Introduction

The HAL1xy Hall switch family is produced in CMOS

technology. The sensors include a temperature-com-

pensated Hall plate with active offset compensation, a

comparator, and an open-drain output transistor. The

comparator compares the actual magnetic flux through

the Hall plate (Hall voltage) with the fixed reference

values (switching points). Accordingly, the output tran-

sistor is switched on or off.

The active offset compensation leads to magnetic

parameters which are robust against mechanical

stress effects. In addition, the magnetic characteristics

are constant in the full supply voltage and temperature

range.

The HAL1xy family is available in the SMD-package

SOT89B-3 and in the leaded version TO92UA-6.

1.1. Family Overview

This sensor family consists of sensors with a latching

and unipolar output behavior.

Unipolar Sensors:

The output turns low with the magnetic south pole on

the branded side of the package and turns high if the

magnetic field is removed. The sensor does not

respond to the magnetic north pole on the branded side.

Latching Sensors:

The sensors have a latching behavior and require a

magnetic north and south pole for correct functioning.

The output turns low with the magnetic south pole on

the branded side of the package and turns high with

the magnetic north pole on the branded side. The

output does not change if the magnetic field is

removed. For changing the output state, the opposite

magnetic field polarity must be applied.

Type

Switching

Behavior

Sensitivity

see

Page

101

unipolar

low

10

102

latching

high

10

103

latching

medium

10

104

latching

low

10

106

unipolar

high

10

107

unipolar

low

10

108

unipolar

medium

10

109

unipolar

high

10