AH921
AH921 is HIGH SENSITIVITY CMOS HALL-EFFECT LATCH manufactured by BCD.
Data Sheet
HIGH SENSITIVITY CMOS HALL-EFFECT LATCH
General Description
The AH921 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.
An on-board regulator permits operation with supply voltage from 3.5V to 24V.
The AH921 is available in TO-92S-3 and SOT-23-3 packages, which are optimized for most applications.
Features
- Wide Operating Voltage Range from 3.5 to 24V
- Symmetrical Switch Points
- Chopper-stabilized Amplifier Stage
- Superior Temperature Stability
- pact Size
- Built-in Pull-up Resistor
- ESD Rating: 3500V (Human Body Model)
Applications
- Brushless DC Motor mutation
- Brushless DC Fan
- Solid-state Switch
- Revolution Counting
- Speed Detection
- High Sensitivity and Unconnected Switch
TO-92S-3
SOT-23-3
Figure 1. Package Types of AH921
Jul. 2011 Rev. 1. 2
BCD Semiconductor Manufacturing Limited 1
HIGH SENSITIVITY CMOS HALL-EFFECT LATCH Pin Configuration
Data Sheet AH921
Z3 Package...
