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MAX6639F - 2-Channel Temperature Monitor

General Description

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Key Features

  • Two Thermal-Diode Inputs Up to 25kHz PWM Output Frequency Three Selectable SMBus Addresses Local Temperature Sensor 1°C Remote Temperature Accuracy Two PWM Outputs for Fan Drive (Open Drain; Can be Pulled Up to +13.5V) Programmable Fan-Control Characteristics Automatic Fan Spin-Up Ensures Fan Start Controlled Rate-of-Change Ensures Unobtrusive Fan-Speed Adjustments ±3% Fan-Speed Measurement Accuracy Temperature Monitoring Begins at POR for FailSafe System Protection OT and THERM Outputs for Thro.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-3682; Rev 2; 4/08 2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller www.datasheet4u.com General Description o o o o o o o o o o o o o o Features Two Thermal-Diode Inputs Up to 25kHz PWM Output Frequency Three Selectable SMBus Addresses Local Temperature Sensor 1°C Remote Temperature Accuracy Two PWM Outputs for Fan Drive (Open Drain; Can be Pulled Up to +13.5V) Programmable Fan-Control Characteristics Automatic Fan Spin-Up Ensures Fan Start Controlled Rate-of-Change Ensures Unobtrusive Fan-Speed Adjustments ±3% Fan-Speed Measurement Accuracy Temperature Monitoring Begins at POR for FailSafe System Protection OT and THERM Outputs for Throttling or Shutdown Measures Temperatures Up to +150°C MAX6639F is Optimized for n = 1.