AH41

Data Sheet BIPOLAR HALL-EFFECT POSITION SENSORS AH41 General Description The AH41 is an integrated Hall-effect latched sensor designed for electronic commutation of brushless DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifiers the Hall voltage, and a Schmitt to provide switching hysteresis for noise rejection and open-collector output. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. A north pole of sufficient strength will turn the output ON. In the absence of a magnetic field, the output is OFF. This IC is available in TO-92S-3 package. Features On-chip Hall Sensor Wide Operating Voltage Range: 4V to 24V Internal Bandgap Regulator for Temperature Compensation Maximum Output Sink Current: 50mA Low Profile TO-92S-3 Operating Temperature: -40˚C to 150˚C ESD Rating: 2000V (Human Body Model) 300V (Machine Model) Application Brushless DC Motor Nov 2010 Rev. 1. 2 TO-92S-3 Figure 1. Package Type of AH41 BCD Semiconductor Manufacturing Limited 1 BIPOLAR HALL-EFFECT POSITION SENSORS Pin Configuration Z3 Package (TO-92S-3) Data Sheet AH41 Figure 2. Pin Configuration of AH41 (Front View) Pin Description Pin Number 1 2 3 Pin Name VCC GND OUTPUT Function Power supply pin Ground pin Output pin. It is low during the N magnetic field Nov 2010 Rev. 1. 2 BCD Semiconductor Manufacturing ...