The EMC1046/EMC1047 are high accuracy, low cost, System Management Bus (SMBus) temperature sensors. Advanced features such as Resistance Error Correction (REC), Beta Compensation (to CPU diodes requiring the BJT or transistor model) and automatic diode type detection combine to provide a robust solution for complex environmental monitoring applications.

Each device provides ±1° accuracy for external diode temperatures and ±2°C accuracy for the internal diode temperature. The EMC1046/EMC1047 monitors up to seven temperature channels (up to six external and one internal).

Features

  Designed to support 45nm, 65nm, and 90nm CPU diodes

  Supports diodes requiring the BJT or transistor model

  Resistance Error Correction (up to 100 Ohms)

  Up to six External Temperature Monitors

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

  0.125°C Resolution

  Supports up to 2.2nF filter capacitor

  Anti-parallel diodes for extra diode support and compact design

  Internal Temperature Monitor

  ±2°C accuracy

  3.3V Supply Voltage

  Available in 10 pin TSSOP RoHS Compliant package

Applications

  Notebook Computers

  Desktop Computers

  Industrial

  Embedded applications