TC647 Datasheet PWM Fan Speed Controller

Manufacturer: Microchip Technology

Overview: M.

TC647 pwm fan speed controller by Microchip Technology - Datasheet Preview

Datasheet Details

Part number	TC647
Manufacturer	Microchip Technology
File Size	478.09 KB
Description	PWM Fan Speed Controller
Download	TC647 Download (PDF)

General Description

The TC647 is a switch mode, fan speed controller for use with brushless DC fans.

Temperature proportional speed control is accomplished using pulse width modulation (PWM).

A thermistor (or other voltage output temperature sensor) connected to VIN furnishes the required control voltage of 1.25V to 2.65V (typical) for 0% to 100% PWM duty cycle.

Key Features

Temperature Proportional Fan Speed for Acoustic Control and Longer Fan Life.
Efficient PWM Fan Drive.
3.0V to 5.5V Supply Range: - Fan Voltage Independent of TC647 Supply Voltage - Supports any Fan Voltage.
FanSense™ Technology Fault Detection Circuits Protect Against Fan Failure and Aid System Testing.
Shutdown Mode for "Green" Systems.
Supports Low Cost NTC/PTC Thermistors.
Space Saving 8-Pin MSOP Package TC647 Package Types SOIC.

TC647 Distributor & Price

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