TC652 Datasheet PDF - Microchip

●General Description

●The TC652/TC653 are integrated temperature sensors and brushless DC fan speed controllers with FanSense™

●technology. The TC652/TC653 measure their junction temperature and control the speed of the fan based on that temperature, making them especially suited for applications in modern electronic equipment. The FanSense™ Fan Fault detect circuitry eliminates the need for a more expensive 3-wire fan.

●Features

●• Integrated Temperature Sensing and Multi-speed Fan Control

●• FanSense™ Fan Fault Detect Circuitry

●• Built-in Over-Temperature Alert (TOVER)

●• Temperature Proportional Fan Speed Control for Acoustic Noise Reduction and Longer Fan Life

●• Pulse Width Modulation Output Drive for Cost and Power Savings

●• Solid-State Temperature Sensing

●• ±1°C (Typical) Accuracy from 25°C to +70°C

●• 2.8V – 5.5V Operating Range

●• TC653 includes Auto Fan Shutdown

●• Low Operating Current: 50µA(Typical)

●Applications

●• Thermal Protection For Personal Computers

●• Digital Set-Top Boxes

●• Notebook Computers

●• Data Communications

●• Power Supplies

●• Projectors