Description
The TC643 is a switchmode brushless DC fan/motor speed driver with diagnostic circuits.
Features
- s Integrates Current Limited Power Driver and Diagnostic/Monitoring Circuits in a Single IC
s Works with Standard DC Brushless Fans/Motors s Supports Efficient PWM Drive with Logic-Level Input s Supply Range 2.7V to 5.5V s Motor Voltage Independent of TC643 Supply
Voltage; Supports 3V-15V Fans! s Logic-Level Output Provides RPM Data s Optimized For Use as a Microcontroller Peripheral s Eliminates Discrete Components and Analog
Circuit Design Effort s Internal Thermal Shutdown For Fail-safe Oper.
TC643-Microchip.pdf
