AH2984 TWO PHASE HALL-EFFECT SMART FAN MOTOR CONTROLLER Description The AH2984 is a single-chip solution for driving two-coil brushless direct current (BLDC) fans and motors.
The device includes a Halleffect sensor, dynamic offset correction and two complementary open-drain output drivers with internal Zener diode protection.
It is optimized for low start-up voltage.
Pin Assignments (Top View) AH2984 To help protect the motor coils, the AH2984 provides Rotor Lock Protection which shuts down output drives if rotor lock is detected.
The device automatically re-starts when the rotor lock is removed.
Over temperature shutdown provides thermal protection for the device.
The AH2984 is available...

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