TC670 Datasheet - Microchip

TC670 Tiny Predictive Fan Failure Detector

The TC670 is an integrated fan speed sensor that predicts and/or detects fan failure, preventing thermal damage to systems with cooling fans. When the fan speed falls below a user specified level, the TC670 asserts an ALERT signal. With this design, a critical minimum fan speed is determined by the .

TC670 Features

* Fan Wear-out Detection for 2-Wire Linear Controlled Fans

* Replacement System for 3-Wire Fans

* Fan Alert Signal when Fan Speed is below Programmed Threshold

* CLEAR Capability for Eliminating False Alarm

* Low Operating Current, 90µA (typ.)

* VDD Ra

TC670_Microchip.pdf