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TC665 - PWM Fan Speed Controllers

Download the TC665 datasheet PDF. This datasheet also covers the TC664 variant, as both devices belong to the same pwm fan speed controllers family and are provided as variant models within a single manufacturer datasheet.

General Description

The TC664/TC665 devices 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.

Key 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.
  • Over Temperature Detection (TC665).
  • 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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (TC664_MicrochipTechnology.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number TC665
Manufacturer Microchip
File Size 729.92 KB
Description PWM Fan Speed Controllers
Datasheet download datasheet TC665 Datasheet

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Other Datasheets by Microchip

Part Number Description
TC664 PWM Fan Speed Controllers
TC620 (TC620 / TC621) Dual Trip Point Temperature Sensors
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
M 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 • Over Temperature Detection (TC665) • 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 TC664/TC665 Description The TC664/TC665 devices 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.