OH921
HIGH SENSITIVITY CMOS HALL-EFFECT LATCH
Order Information
Package
TO92S-3
SOT23-3
Temperature Range
-40 to 125°C
-40 to 125°C
Part Number
OH921-T
OH921-S
Marking ID
920
GS6
Packing Type
Bulk
Tape & Reel
General Description
:
Description:
The OH921 is a Hall-effect latch designed in mixed signal CMOS technology.
It is quite suitable for use in automotive, industrial and consumer applications.
Superior high-temperature performance is made possible through dynamic
offset cancellation, which reduces the residual offset voltage normally caused
by device over-molding, temperature dependencies, and thermal stress. The device
integrates a voltage regulator, Hall-voltage generator, small-signal amplifier, chopper
stabilization, schmitt trigger, and is directly drivable by the output.
Features
Applications
• Wide Operating Voltage Range from 3.5 to 24V
• Brushless DC Motor Commutation
• Symmetrical Switch Points
• Brushless DC Fan
• Chopper-stabilized Amplifier Stage
• Solid-state Switch
• Superior Temperature Stability
• Revolution Counting
• Compact Size
• Speed Detection
• Built-in Pull-up Resistor
• High Sensitivity and Unconnected Switch
• ESD Rating: 3500V (Human Body Model)
Absolute Maximum Ratings
（T
A
=25℃）
Supply VoltageV
CC··············
3.5-28V
Output Current I
O···················
25mA
Operating Temperature Range T
A ·····
-50½150℃
Storage Temperature RangeT
S ··········
-65½150℃
Functional Block Diagram
Nanjing Ouzhuo Technology co., Ltd
Tel：86-25-52312738，86-25-83247886
Page 1
www.ohhall.com
FAX: 86-25-52312738
www.zbling.com
E-mail: ohhall@163.com
OHHALLSENSOR [ Nanjing Ouzhuo Technology Co., Ltd. ]
