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AH922

Part Number	AH922
Manufacturer	BCD
Description	UNIPOLAR HALL-EFFECT SWITCH
Published	Apr 12, 2015
Detailed Description	Data Sheet UNIPOLAR HALL-EFFECT SWITCH AH922 General Description The AH922 is a unipolar Hall-effect one-chip switch ...
Datasheet	AH922 PDF File

Overview

Data Sheet UNIPOLAR HALL-EFFECT SWITCH AH922 General Description The AH922 is a unipolar Hall-effect one-chip switch with digital output, solution for sense magnetic field.
It is designed in mixed signal CMOS and chopper technology.
This IC is quite suitable for use in automotive, industrial and consumer applications.
The two sensors are suited for operation over extended temperature ranges.
The AH922 Hall-effect switch is combined with a voltage regulator, Hall-voltage generator, chopper small-signal amplifier, Schmitt trigger and open-drain output.
The AH922 is available in TO-92S-3 and SOT-23-3 packages.
Features • Wide Operating Voltage Range • Chopper Stabilization • Extremely Low Switch Point Drift • Superior Temperature Stability • High Sensitivity Integrated Hall Sensor • Solid State Reliability • Robust EMC Capability Applications • 5V/12V DC Brushless Motor/Fan • Solid State Switch • Speed Detection • Revolution Counting TO-92S-3 SOT-23-3 Figure 1.
Package Types of AH922 May 2012 Rev.
1.
1 BCD Semiconductor Manufacturing Limited 1 UNIPOLAR HALL-EFFECT SWITCH Pin Configuration Z3 Package (TO-92S-3) 3 2 1 (Front View) Data Sheet AH922 N Package (SOT-23-3) 3 12 (Top View) Figure 2.
Pin Configuration of AH922 Pin Description Pin Number TO-92S-3 SOT-23-3 11 23 32 Pin Name VCC GND OUT Supply voltage Ground pin Output pin Function May 2012 Rev.
1.
1 BCD Semiconductor Manufacturing Limited 2 UNIPOLAR HALL-EFFECT SWITCH Functional Block Diagram Data Sheet AH922 Figure 3.
Functional Block Diagram of AH922 May 2012 Rev.
1.
1 BCD Semiconductor Manufacturing Limited 3 UNIPOLAR HALL-EFFECT SWITCH Ordering Information AH922 Circuit Type Package Z3: TO-92S-3 N: SOT-23-3 - Data Sheet AH922 G1: Green TR: Tape & Reel Blank: Bulk Package TO-92S-3 SOT-23-3 Temperature Range -40 to 125°C Part Number AH922Z3-G1 AH922NTR-G1 Marking ID 922 GT4 Packing Type Bulk Tape & Reel BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the...

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