Catalog
Single Phase Full Wave Direct PWM Motor Driver
Key Features
• Single-Phase Full Wave BLDC Fan/Motor Drive with BTL Output (BTL Amplifier Gain=49dB)
• Low Noise Architecture
• Wide Operating Voltage Range: 2.4V to 18V
• PWM Speed Control with external PWM Input
• DC Voltage Speed Control by Adjusting VCONT and RMI voltage
• Hall Bias Output VHB=1.25V
• Built-In Quick Start Circuit
• Lock Protection with Automatic Restart
• Frequency Generator (FG) Output
• Rotor Lock Detection (RD) Output
• Current Limit Circuit
• RFdefines the current limit; RF=1 will give 250mA Current limit
• Thermal Shut-down (TSD) Circuit
• Low Profile Package: TSSOP16 with Exposed Pads for Power Handling Capability
• Totally Lead-Free & Fully RoHS Compliant
• Halogen and Antimony Free. "Green" Device
Description
AI
The AM9468 is a high performance ultra low noise single phase (single –coil) brushless direct current (BLDC) fans and motors. The integrated full-bridge driver output stage uses a BTL linear driver architecture to minimize audible switching noise and electromagnetic interference (EMI) providing a low noise solution.