Diodes Incorporated
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AH41 (Obsolete)

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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.


  • 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)


  • Brushless DC Motor

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) No
Average Supply Current (µA) 6
Operating Ambient Temperature (°C) -40 to 150
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Max) 70, 105
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Min) 30, 5
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Typ) -
Operating Voltage (V) 4 to 25
Output Current Capability (mA) 50
Output Type Single, Open Collector, Active Low
AEC Qualified No
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Max) -30, -5
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Min) -70, -105
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Typ) -

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