AiT Semiconductor Inc.
AH8231
www.ait-ic.com
HALL SWITCH
OMNIPOLAR HALL EFFECT SWITCH IC
REV1.0 - MAR 2023 RELEASED – - 1 -
DESCRIPTION
FEATURES
The
AH8231 is designed to integrate pole
independent Hall sensor with output driver together
on the same chip. Either North or South magnetic
field with sufficient strength will turn the output on
(low). In the absence of a magnetic field, output is off
(high).
The polarity independence allow AH8231 to easily
replace reed switches for superior
reliability and
case of manufacturing.
To improve stability, it includes a temperature
compensated voltage regulator, a differential
amplifier, a Hysteresis controller,
and an open
collector output driver capable of sinking up to 20mA
current load. The temperature dependent bias
increases the supply voltage of the hall plates and
adjusts the switching points to the decreasing
induction of magnets at higher temperatures.
Subsequently, the output can keep switching on/off
on more precise switch point regardless to the
ambient temperature.
AH8231 are rated for
operation over temperature range from -20℃ to +85
℃ and voltage ranges from 2.4 V to 26 V.
AH8231 is available in a SOT-23 and TO-92S
packages.
Operates from 2.4 V to 26 V supply voltage
Operation with North or South Pole
On chip Hall Sensor and driver
On chip temperature compensation circuitry
minimizes shifts in on and off points and
hysteresis over temperature and supply
voltage
On chip voltage regulator to stabilize On/Off
switch point
Wide range operating temperature -20 ~ +85℃
On (L) with South or North magnetic field and
Off (H) with No magnetic field
TYPICAL APPLICATION
ORDERING INFORMATION
Package Type
Part Number
SOT-23
SPQ: 3,000pcs/Reel
E3
AH8231E3R-X
AH8231E3VR-X
TO-92S
SPQ: 1,000pcs/Bag
ZS
AH8231ZSB-X
AH8231ZSVB-X
Note
X= Grade
A: 100 Gauss, B: 150 Gauss
V: Halogen free Package
R: Tape & Reel
B: Bulk Packing
AiT provides all RoHS products
