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MAX6660 Remote Junction Temperature Controlled Fan Speed Regulator

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Description

19-2225; Rev 0; 10/01 Remote-Junction Temperature-Controlled Fan-Speed Regulator with SMBus Interface General .
The MAX6660 is a remote temperature sensor and fanspeed regulator that provides a complete fan-control solution.

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Features

* o Integrated Thermal Sensing and Fan-Regulation Solution o Programmable Fan Threshold Temperature o Programmable Temperature Range for Full-Scale Fan Speed o Accurate Closed-Loop Fan-Speed Regulation o On-Chip Power Device Drives Fans Rated Up to 250mA o Programmable Under/Overtemperature Alarms o S

Applications

* Typical Operating Circuit +3V TO +5.5V 0.1µF 50Ω +12V 10kΩ EACH 5kΩ VFAN VCC STBY 1µF FAN TACH IN SMBCLK CLOCK FAN MAX6660 SMBDATA DATA 2200pF ALERT INTERUPT TO µP DXN OVERT Pin Configuration appears at end of data sheet. PENTIUM TO SYSTEM SHUTDOWN AGND ADD0 ADD1 PGND _____

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