TC647B, TC642B - PWM Fan Speed Controllers

Microchip

Datasheet Details

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

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 |