HAL710_2 Datasheet, PDF(1/2 Page) Micronas – Hall-Effect Sensors with Direction Detection

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HAL710_2 Datasheet, PDF (1/2 Pages) Micronas – Hall-Effect Sensors with Direction Detection

PRODUCT INFORMATION

HAL 710/730

May/2007

HALÂ® 710/730

Hall-Effect Sensors with Direction Detection

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 â one for âcountâ and one for âdirec-

tionâ 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 â40 Â°C up

to 125 Â°C.

The HAL 710/730 family is available in the

SMD package SOT-89B-3.

Features

â Operates from 3.8 V to 24 V supply volt-

age

â Generation of a direction signal

â Operates with static magnetic fields and

dynamic magnetic fields up to 10 kHz

â Overvoltage protection at all pins

â Reverse-voltage protection at VDD pin

â Magnetic characteristics are robust

against mechanical stress effects

â Short-circuit protected open-drain out-

puts by thermal shut down

â Constant switching points over a wide

supply voltage and temperature range

â The decrease of magnetic flux density

caused by rising temperature in the sen-

sor system is compensated by a built-in

negative temperature coefficient of the

magnetic characteristics

â High temperature stability for automo-

tive or industrial applications

â High ESD rating

Major Applications

The HAL 710/730 is the optimal system

solution for applications, such as:

â Endposition detection

â RPM measurement of motors in various

applications, such as power window

â RPM measurements in flow meters

â Replacement of micro switches

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