» Datasheets » Motor / Motion / Ignition Controllers & Drivers

Datasheet Microchip TC670ECHTR

The TC670 is an integrated fan speed sensor that predicts and/or detects fan failure, preventing thermal damage to systems with cooling fans

Datasheets

• Download » Datasheet PDF, 253 Kb, File published: Feb 5, 2013
  TC670 Datasheet
  Docket ↓
  TC670
  Tiny Predictive Fan Failure Detector
  Features General Description 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, 90 ВµA (typ.) VDD Range 3.0V to 5.5V Available in a 6-Pin SOT-23 Package 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 user. The fan
  alert level is then set with a resistor divider on the
  THRESHOLD pin (Pin 1) of the TC670. When the
  minimum fan speed is reached, the ALERT pin (Pin 5)
  changes from a digital high to low. This failure detection
  works with all linear-controlled 2-wire fans. The TC670
  eliminates the need for 3-wire fan solutions. Applications A CLEAR option can be used to reset the ALERT signal, allowing the flexibility of connecting the ALERT
  output of the TC670 with other ALERT/FAULT interrupts in the system. This feature can be implemented
  so that false fan fault conditions do not initiate system
  shutdown. Protection for Linear-Controlled Fans
  Power Supplies
  Industrial Equipment
  PCs and Notebooks
  Data Storage ...

Prices

Status

Packaging

Parametrics

Eco Plan

Moldel Line

• TC670ECHTR

Manufacturer's Classification

• Thermal Management > Fan Controllers > Open Loop Fan Controllers and Fault Detectors

Related datasheets:

• Datasheet Microchip TC670