MAX6660 Datasheet

MAX6660 Remote Junction Temperature Controlled Fan Speed Regulator

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 2N390.

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-Sensing Accuracy o MAX6660EVKIT Available MAX6660 PC Notebooks Telecom Systems Servers Industrial Co.