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TC649

Part Number	TC649
Manufacturer	Microchip
Description	PWM Fan Speed Controller
Published	Aug 3, 2005
Detailed Description	M Features • Temperature Proportional Fan Speed for Acoustic Control and Longer Fan Life • Efficient PWM Fan Drive • 3.0...
Datasheet	TC649 PDF File

Overview

M 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 TC649 Supply Voltage - Supports any Fan Voltage • FanSense™ Fault Detection Circuits Protect Against Fan Failure and Aid System Testing • Automatic Shutdown Mode for “Green” Systems • Supports Low Cost NTC/PTC Thermistors • Space Saving 8-Pin MSOP Package TC649 Package Types SOIC/PDIP/MSOP VIN CF VAS GND 1 2 3 4 8 VDD VOUT FAULT SENSE PWM Fan Speed Controller with Auto-Shutdown and FanSense™ Technology TC649 7 6 5 General Description The TC649 is a switch mode, fan speed controller for use with brushless DC fans.
Tem...

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