Description
The AH5775 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
• Built-in Hall effect sensor and input amplifier
• Operating voltage: 2.5V to 18V
• Soft switching for low noise DC fan motor applications
• Rotor Lock Protection (Lock detection, output shutdown and
   automatic restart)
• Overvoltage 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 / 12V / 15V Min. BLDC Cooling Fans
• Netbook/ Notebook and Desktop BLDC fans
• Instruments Cooling Fans
• Medium Voltage/ Low Power BLDC Motors