TC647B - PWM Fan Speed Controllers

Product Overview

Microchip

Part number	TC647B
Manufacturer	Microchip
File Size	545.74 KB
Description	PWM Fan Speed Controllers
Datasheet	TC647B Datasheet
Note	This datasheet PDF includes multiple part numbers: TC647B, TC642B. Please refer to the document for exact specifications by model.
Additional preview pages of the TC647B datasheet.

The TC642B/TC647B devices are new versions of the existing TC642/TC647 fan speed controllers.

Temperature-Proportional Fan Speed for Acoustic Noise Reduction and Longer Fan Life.
Efficient PWM Fan Drive.
3.0V to 5.5V Supply Range: - Fan Voltage Independent of TC642B/TC647B Supply Voltage - Supports any Fan Voltage.
FanSense™ Fault Detection Circuit Protects Against Fan Failure and Aids System Testing.
Shutdown Mode for "Green" Systems.
Supports Low Cost NTC/PTC Thermistors.
Over-Temperature Indication (TC642B only).

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Published: Feb 6, 2015 |