General Description
The EMC1428 is a high accuracy, low cost, System Management Bus (SMBus) temperature sensor. 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.
FEATUREs
◾ Hardware Thermal Shutdown
— triggers dedicated SYS_SHDN pin
— hardware configured range 65°C to 127°C in 1°C steps
— cannot be disabled or modified by software
◾ 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 seven 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 a 16 pin 4mm x 4mm QFN lead-free
RoHS Compliant package
◾ Programmable temperature limits for ALERT
APPLICATIONs
◾ Notebook Computers
◾ Desktop Computers
◾ Industrial
◾ Embedded Applications