ANALOG DEVICES ADM1022 Low-Cost PC Temperature Monitor Fan Control ASIC handbook
Datasheet
The document describes the functionality and features of a low-cost PC temperature monitor and fan control ASIC chip called ADM1022. The chip features external temperature measurement with remote diode, on-chip temperature sensor, interrupt and over-temperature outputs, fault-tolerant fan control, brownout detection, LDCM support, and system management bus (SMBus), etc.