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MICROCHIP TC670ECHTR.

Tiny Predictive Fan Failure Detector, 3V-5.5Vin, 0-6

MICROCHIP TC670ECHTR.

Image is for illustrative purposes only. Please refer to product description.

Manufacturer:
MICROCHIP MICROCHIP
Manufacturer Part No:
TC670ECHTR.
Order Code:
1652425
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Technical Datasheet:
TC670ECHTR.   Datasheet
ECAD / MCAD
Supply Frame Models Link
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Product Overview

The TC670ECHTR is an integrated Fan Speed Sensor predicts or detects fan failure, preventing thermal damage to systems with cooling fans. When the fan speed falls below 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. 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.
  • 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
  • 90µA Typical low operating current

Applications

Power Management, Industrial, Computers & Computer Peripherals, Communications & Networking, Sensing & Instrumentation, Safety

Product Information

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Fan Failure Detector

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1Outputs

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1Monitors

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-

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SOT-23

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Active-High

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6Pins

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3V

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5.5V

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Surface Mount

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-40°C

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85°C

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176ms

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-

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-

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Technical Documents (2)

Packaging type Cut Tape

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¥279.02 (¥306.92 Inc. JCT)

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