ADM1030 - Intelligent Temperature Monitor and PWM Fan Controller

onsemi

Datasheet Details

Part number	ADM1030
Manufacturer	onsemi
File Size	317.12 KB
Description	Intelligent Temperature Monitor and PWM Fan Controller
Datasheet	ADM1030 Datasheet

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ADM1030 Intelligent Temperature Monitor and PWM Fan Controller The ADM1030 is an ACPI-compliant two-channel digital thermometer and under/over temperature alarm, for use in computers and thermal management systems. Optimized for the Pentium III, the higher 1C accuracy offered allows systems designers to safely reduce temperature guardbanding and increase system performance. A Pulsewidth Modulated (PWM) Fan Control output controls the speed of a cooling fan by varying output duty cycle. Duty cycle values between 33%–100% allow smooth control of the fan. The speed of the fan can be monitored via a TACH input for a fan with a tach output. The TACH input can be programmed as an analog input, allowing the speed of a 2-wire fan to be determined via a sense resistor.