| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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498 pcs
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498 pcs | On Request | 1 | On Request | On Request | N/A | On Request | On Request |
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The TC642COA from Microchip Technology is a switch-mode fan speed controller for brushless DC fans. It utilizes pulse width modulation (PWM) for temperature-proportional speed control, enabling acoustic management and extending fan life. The device supports a supply voltage range of 3.0V to 5.5V, with the fan voltage being independent of the TC642 supply voltage.
Key features include efficient PWM fan drive and Microchip's FanSense™ technology for fault detection against fan failure. It also offers a shutdown mode for energy-efficient systems and supports low-cost NTC/PTC thermistors for temperature sensing. The TC642COA is housed in a space-saving 8-pin SOIC package, suitable for surface mounting.
This controller is designed for applications such as power supplies, personal computers, file servers, and telecom equipment, providing general-purpose fan speed control. An integrated start-up timer ensures reliable motor start-up at power-on, after shutdown, or following a transient fault. The FAULT output can indicate over-temperature conditions or a 100% duty cycle PWM output.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.25 | $2.25 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
3.0V to 5.5V.
8-SOIC (8-pin small outline IC) surface mount package.
0°C to 70°C.
Controller - Speed for brushless DC motors.
Brushless DC (BLDC) motors.
Pre-Driver - Low Side.
Fan Controller.