HAL 710/730

May/2007

PRODUCT INFORMATION

HAL

Hall-Effect Sensors with Direction Detection

PRODUCT INFORMATION

The HAL 710/730 Hall switch family is pro-

duced in CMOS technology. The sensors

include two independent temperature-com-

pensated Hall plates each equipped with

active offset compensation and a compara-

tor. The sensors provide two open-drain

outputs – one for “count” and one for “direc-

tion” detection.

The comparator compares the actual mag-

netic flux through the Hall plates (Hall volt-

age) with the fixed reference values (switch-

ing points). The first comparator directly

switches the count output. The phase shift

between both comparators determine the

state of the direction output.

The active offset compensation leads to

magnetic parameters which are robust

against mechanical stress effects. In addi-

tion, the magnetic characteristics are con-

stant over the full supply voltage and tem-

perature range.

The sensors are designed for industrial and

automotive applications and operate with

supply voltages from 3.8 V to 24 V in the

ambient temperature range from

−40 °C up

to 125

°C.

The HAL 710/730 family is available in the

SMD package SOT-89B-3.

Features

age

dynamic magnetic fields up to 10 kHz

against mechanical stress effects

puts by thermal shut down

supply voltage and temperature range

caused by rising temperature in the sen-

sor system is compensated by a built-in

negative temperature coefficient of the

magnetic characteristics

tive or industrial applications

Major Applications

The HAL 710/730 is the optimal system

solution for applications, such as:

applications, such as power window