Description
The AH5772 is 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 system circuit and minimize external components, the device integrates a stable high sensitivity Hall-Effect sensor, voltage and temperature compensated internal references, amplifiers and the output H-bridge power switches with low RDSON.

FEATUREs
• Supports Single-phase Full Wave BLDC Fan/Motor Drive
• Wide Operating Voltage Range: 2.4V to 18V
• Built-in High Sensitivity Hall Effect Sensor
   • Very Low Temperature and Voltage Coefficient of the
      Magnetic Operating Switch Points
• Built-in H-Bridge with Low RDSON Resistance
• Soft Switching for Low Noise DC Fan Motor Applications
• Rotor Lock Protection (Lock Detection, Output Shutdown and
   Automatic Re-start)
• Over Voltage Shutdown
• Thermal Protection
• No External Timing Capacitor - Reduces the Numbers of
   External Components Required
• Industry Standard TO94 Package
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)

APPLICATIONs
• 5V / 9V / 12V / 15V Min. BLDC Cooling Fans
• Netbook/ Notebook and Desktop BLDC Fans
• Instruments Cooling Fans
• Medium Voltage/ Low Power BLDC Motors