General Description

The EMC1402 is a high accuracy, low cost, System Management Bus (SMBus) temperature sensor. Advanced features such as Resistance Error Correction (REC), Beta Compensation (to support CPU diodes requiring the BJT/transistor model including 45nm, 65nm and 90nm processors) and automatic diode type detection combine to provide a robust solution for complex environmental monitoring applications.

Features

■ Support for diodes requiring the BJT/transistor model

— supports 45nm, 65nm, and 90nm CPU thermal diodes.

■ Pin compatible with ADM1032, MAX6649, and LM99

■ Automatically determines external diode type and optimal settings

■ Resistance Error Correction

■ External Temperature Monitors

— ±1°C Accuracy (60°C < TDIODE < 100°C)

— 0.125°C Resolution

■ Internal Temperature Monitor

— ±2°C accuracy

■ 3.3V Supply Voltage

■ Programmable temperature limits for ALERT and THERM

■ Available in Small 8-pin MSOP Lead-free RoHS Compliant Package

Applications

■ Notebook Computers

■ Desktop Computers

■ Industrial

■ Embedded applications