Product Brief HIGH SENSITIVITY CMOS HALL-EFFECT LATCH Description AH920 Parametric Table 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, Hall-voltage generator, small-signal amplifier, chopper stabilization, schmitt trigger, and open-drain output. Output Saturation Voltage (VCC=12V, IOUT=20mA) (mV) 185 Supply Current (Average) (mA) 3 Operating Point (Gauss) 22 Releasing Point (Gauss) -22 Hysteresis (Gauss) 45 Benefits 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. • • • • • • Features Additional Available Materials • • • • • • • • • • • • Wide Operating Voltage Range from 3.5 to 20V Symmetrical Switch Points Chopper-stabilized Amplifier Stage Superior Temperature Stability Open-drain Output Compact Size ESD Rating: 6000V (Human Body Model) High Sensitivity for Switching Symmetry Excellent Temperature Performance Wide Operation Temperature Range High ESD Cost-effective Total Solution If Bundling with BCD’s FMD ICs Samples Preliminary Data Sheet Reliability Report ESD Report Applications • • • • • • Brushless DC Motor Commutation Brushless DC Fan Solid-state Switch Revolution Counting Speed Detection High Sensitivity and Unconnected Switch Mar. 2010 BCD Semiconductor Manufacturing Limited 1 Product Brief HIGH SENSITIVITY CMOS HALL-EFFECT LATCH AH920 Pin Configuration Z3 Package (TO-92S-3) N Package (SOT-23-3) 3 3 2 1 2 1 (Front View) (Top View) Ordering Information Example Package Temperature Range TO-92S-3 -40 to 125°C SOT-23-3 -40 to 125°C Part Number Marking ID Packing Type AH920Z3-G1 920 Bulk AH920Z3TR-G1 920 Ammo AH920NTR-G1 GS7 Tape & Reel Detailed information please refer to the relevant datasheet. Sales Office: Shanghai No. 1600, Zi Xing Road, Shanghai ZiZhu Science-based Industrial Park, 200241, China Tel : 86-21-24162266 Fax : 86-21-24162277 USA 30920 Huntwood Ave. Hayward, CA 94544, USA Tel : +1-510-324-2988 Fax : +1-510-324-2788 Taiwan 4F, 298-1 Rui Guang Road, Nei-Hu District, Taipei, Taiwan Tel : 886-2-2656-2808 Fax : 886-2-2656-2806 Shenzhen Unit A Room 1203, Skyworth Bldg., Gaoxin Ave.1.S., Nanshan District, Shenzhen, China Tel : 86-755-8826 7951 Fax : 86-755-8826 7865 Mar. 2010 BCD Semiconductor Manufacturing Limited 2