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MAX31785 Datasheet 6-Channel Intelligent Fan Controller

Manufacturer: Maxim Integrated (now Analog Devices)

General Description

The MAX31785 is a closed-loop multichannel fan controller.

Automatic closed-loop fan control saves system power by operating the fans at the lowest possible speeds.

Added benefits of slower fan speeds include lower audible noise, longer fan life, and reduced system maintenance.

Overview

www.DataSheet.co.kr 19-5703; Rev 1; 11/11 6-Channel Intelligent Fan.

Key Features

  • S Six Independent Channels of Fan Control Supports 3-Wire and 4-Wire Fans Automatic Closed-Loop Fan Speed Control RPM- or PWM-Based Control Optional Manual Mode Control Fast and Slow PWM Frequency Options Staggered Fan Spin-Up Eases Power-Supply Stress Dual Tachometer (12-Fan Support) Fan-Fault Detection Fan-Health Status Meter Nonvolatile Fan Operating Run Time Meter S Supports Up to 11 Temperature Sensors Up to Six External Thermal Diodes with Automatic Series Resis.