DESCRIPTION

· The ADM1022 is a low-cost temperature monitor and fan controller designed for microprocessor-based systems.
· It measures the temperature of one or two remote sensor diodes, enabling monitoring in single- or dual-processor systems.
· Values can be read and programmed via a serial System Management Bus (SMBus).
· It includes a DAC for fan speed control and automatic hardware temperature trip points.
· The chip features two supply voltage monitors for brownout detection and operates within a 3.0 V to 5.5 V supply voltage range.

FEATURES

· External temperature measurement with remote diode (two channels).
· On-chip temperature sensor.
· Interrupt and over-temperature outputs.
· Fault-tolerant fan control.
· Brownout detection.
· LDCM support.
· System Management Bus (SMBus) interface.
· Standby mode to minimize power consumption.
· Limit comparison of all monitored values.

APPLICATIONS

· Network servers and personal computers.
· Microprocessor-based office equipment.
· Test equipment and measuring instruments.
· Hardware monitoring and protection in personal computers, electronic test equipment, and office electronics.