AH577x Single Phase Motor Drivers Diodes' AH577x Single Phase Motor Drivers are a single chip solution for driving single-coil brushless direct current (BLDC) fans and motors. The integrated full-bridge driver output stage uses soft switching to minimize audible switching noise and electromagnetic interference (EMI) providing a low noise solution. To simplify circuit design and minimize external components, the devices integrate a stable high sensitivity Hall-Effect sensor, voltage and temperature compensated internal references, amplifiers and the output H-bridge power switches with low RDSON.Learn More