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MAX6660 - Remote Junction Temperature Controlled Fan Speed Regulator

Datasheet Summary

Description

The MAX6660 is a remote temperature sensor and fanspeed regulator that provides a complete fan-control solution.

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 SMBus 2-Wire Serial Interface with Timeout (Cannot “Lock Up” the SMBus) o Supports SMBus Alert Response o ACPI Compatible, Including OVERT System Shutdown Function o ±1°C (+60°C to +100°C) Thermal-Sens.

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Datasheet preview – MAX6660

Datasheet Details

Part number MAX6660
Manufacturer Maxim Integrated
File Size 182.33 KB
Description Remote Junction Temperature Controlled Fan Speed Regulator
Datasheet download datasheet MAX6660 Datasheet
Additional preview pages of the MAX6660 datasheet.

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Full PDF Text Transcription

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19-2225; Rev 0; 10/01 Remote-Junction Temperature-Controlled Fan-Speed Regulator with SMBus Interface General Description The MAX6660 is a remote temperature sensor and fanspeed regulator that provides a complete fan-control solution. The remote temperature sensor is typically a common-collector PNP, such as a substrate PNP of a microprocessor, or a diode-connected transistor, typically a low-cost, easily mounted 2N3904 NPN type or 2N3906 PNP type. The device also incorporates a closed-loop fan controller that regulates fan speed with tachometer feedback. The MAX6660 compares temperature data to a fan threshold temperature and gain setting, both programmed over the SMBus™ by the user. The result is automatic fan control that is proportional to the remotejunction temperature.
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