Microchip Technology TC664EUNTR Fan Controller IC 10-Pin, MSOP

  • RS stock no. 177-9686
  • Mfr. Part No. TC664EUNTR
  • Manufacturer Microchip
Technical data sheets
Legislation and Compliance
COO (Country of Origin): US
Product Details

The TC664 is a single PWM mode fan speed controller with FanSense™ TM technology for use with brushless DC motors. The device allows temperature proportional speed control and therefore accomplishes lower acoustic fan noise and longer fan life. The TC664 reads the voltage provided by an external thermistor (or voltage output temperature sensor) and adjusts a 30% to 100% PWM duty cycle output to the fan with respect to the input temperature voltage. The PWM duty cycle can also be programmed via SMBus to allow fan speed control without the need of an external thermistor. In normal fan operation, pulse trains are present at the SENSE pin. These pulses are used to calculate the fan RPM.

Temperature Proportional Fan Speed for Acoustic Control and Longer Fan Life
FanSense™ Protects Against Fan Failure
Provides RPM Data
2-wire SMBus Compatible Interface
3.0V to 5.5V Supply Range
Fan Voltage Independent of Supply Voltage
Supports Any Fan Voltage
Supports Low Cost NTC/PTC Thermistors

Attribute Value
Output Configuration PWM
Maximum Supply Voltage 5.5 V
Mounting Type Surface Mount
Package Type MSOP
Pin Count 10
Maximum Operating Supply Voltage 5.5 V
Minimum Operating Supply Voltage 3 V
Typical Switching Frequency 30 (PWM)Hz
Series TC664
Width 3.1mm
Product Height 0.95mm
Minimum Operating Temperature -40 °C
Height 0.95mm
Product Length 3.1mm
Maximum Operating Temperature +85 °C
Length 3.1mm
Product Width 3.1mm
Dimensions 3.1 x 3.1 x 0.95mm
Temporarily out of stock - back order for despatch when stock is available
Price (Excl VAT) Each (On a Reel of 2500)
R 19.795
(exc. VAT)
R 22.764
(inc. VAT)
Per unit
Per Reel*
2500 +
R 19.795
R 49,487.50
*price indicative