Datasheet Summary
YANGZHOU POSITIONING TECH. CO., LTD
CR211 2PHASE DC MOTOR DRIVER WITH SPEED DETECTION 1. General Description
The CR211, one chip posed of hall sensor and output coil drivers, applied to 2-phase DC motor. The high sensitivity of Hall Effect sensor is suitable for motors from mini-type CPU coolers to blowers and DC fans. The device also includes a n amplifier that amplifies the Hall voltage, and a Schmitt trigger to provide switching hysteresis for noise rejection, and plementary open-collector drivers for sinking large current loads. An internal bandgap regulator is used to provide temperature pensated supply voltage for internal circuits and allows a wide operating supply...