AH920

NOT RECOMMENDED FOR NEW DESIGN USE AH3772 AH920 HIGH SENSITIVITY CMOS HALL-EFFECT LATCH Description The AH920 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, Hallvoltage generator, small-signal amplifier, chopper stabilization, schmitt trigger, and open-drain output. An on-board regulator permits operation with supply voltage from 3.5V to 20V. The AH920 is available in TO-92S-3 and SOT-23-3 packages, which are optimized for most applications. Pin Assignments (Front View) 3 2 1 TO-92S-3 (Top View) GND 3 OUT GND VCC Features  Wide Operating Voltage Range from 3.5V to 20V  Symmetrical Switch Points  Chopper-Stabilized Amplifier Stage  Superior Temperature Stability  Open-Drain Output  Wide Operating Temperature Range: -40ºC to +125ºC  ESD Rating: 6000V (Human Body Model)  Totally Lead-free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device (Note 3 1 VCC 2 OUT SOT-23-3 Applications  Brushless DC Motor Commutation  Brushless DC Fan  Solid-State Switch  Revolution Counting  Speed Detection  High Sensitivity and Unconnected Switch Notes: 1. No purposely added lead. Fully E...