TC655 - PWM Fan Speed Controller

This page provides the datasheet information for the TC655, a member of the TC654 PWM Fan Speed Controller family.

Description

The TC654 and TC655 are PWM mode fan speed controllers with FanSense technology for use with brushless DC fans.

These devices implement temperature proportional fan speed control which lowers acoustic fan noise and increases fan life.

Features

Temperature Proportional Fan Speed for Reduced Acoustic Noise and Longer Fan Life.
FanSense™ Protects against Fan Failure and Eliminates the Need for 3-wire Fans.
Overtemperature Detection (TC655).
Efficient PWM Fan Drive.
Provides RPM Data.
2-Wire SMBus™-Compatible Interface.
Supports Any Fan Voltage.
Software Controlled Shutdown Mode for "Green" Systems.
Supports Low-Cost NTC/PTC Thermistors.
Space Savi.

Microchip Technology

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Datasheet Details

Part number	TC655
Manufacturer	Microchip Technology
File Size	571.08 KB
Description	PWM Fan Speed Controller
Datasheet	TC655 Datasheet
Additional preview pages of the TC655 datasheet.

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Full PDF Text Transcription

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TC654/TC655 Dual SMBus™ PWM Fan Speed Controllers With Fan Fault Detection Features: • Temperature Proportional Fan Speed for Reduced Acoustic Noise and Longer Fan Life • FanSense™ Protects against Fan Failure and Eliminates the Need for 3-wire Fans • Overtemperature Detection (TC655) • Efficient PWM Fan Drive • Provides RPM Data • 2-Wire SMBus™-Compatible Interface • Supports Any Fan Voltage • Software Controlled Shutdown Mode for "Green" Systems • Supports Low-Cost NTC/PTC Thermistors • Space Saving 10-Pin MSOP Package • Temperature Range: -40°C to +85ºC Applications: • Personal Computers and Servers • LCD Projectors • Datacom and Telecom Equipment • Fan Trays • File Servers • Workstations • General Purpose Fan Speed Control Package Type 10-Pin MSOP VIN 1 CF 2 SCLK 3 SDA 4 GND 5 TC65

Published: Mar 7, 2006 |