HAL115 Просмотр технического описания (PDF) - Micronas

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HAL115

Hall Effect Sensor Family

Micronas 

HAL11x

Hall Effect Sensor Family

in CMOS technology

Release Notes: Revision bars indicate significant

changes to the previous edition.

1. Introduction

The HAL 11x family consists of different Hall switches

produced in CMOS technology.

All sensors include a temperature-compensated Hall

plate, a comparator, and an open-drain output transistor.

The comparator compares the actual magnetic flux

through the Hall plate (Hall voltage) with the fixed refer-

ence values (switching points). Accordingly, the output

transistor is switched on or off. The sensors of this family

differ in the switching behavior.

The sensors are designed for industrial and automotive

applications and operate with supply voltages from

4.5 V to 24 V in the ambient temperature range from

–40 °C up to 125 °C.

All sensors are available in an SMD-package (SOT-89B)

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

1.1. Features

– operates from 4.5 V to 24 V supply voltage

– overvoltage protection

– reverse-voltage protection at VDD-pin

– short-circuit protected open-drain output by thermal

shut down

– operates with static magnetic fields and dynamic mag-

netic fields up to 20 kHz

– stable 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 characteristics

1.2. Family Overview

The types differ according to the mode of switching.

Type

HAL 114

HAL 115

Switching Behavior

unipolar

bipolar

see Page

10

12

Bipolar Switching Sensors:

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

state is not defined for all sensors if the magnetic field is

removed again. Some sensors will change the output

state and some sensors will not.

Unipolar Switching Sensors:

The output turns low with the magnetic south pole on the

branded side of the package and turns high if the mag-

netic field is removed. The sensor does not respond to

the magnetic north pole on the branded side.

1.3. Marking Code

All Hall sensors have a marking on the package surface

(branded side). This marking includes the name of the

sensor and the temperature range.

Type

HAL 114

HAL 115

Temperature Range

K

E

C

114K

114E

114C

115K

115E

115C

Micronas

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