EMC1428 1C Multiple Temperature Sensor with HW Thermal Shutdown & Hottest of Thermal Zones Data Sheet PRODUCT FEATURES General Description Features Hardware Thermal Shutdown The EMC1428 is a high accuracy, low cost, System triggers dedicated SYS SHDN pin Management Bus (SMBus) temperature sensor. hardware configured range 65C to 127C in 1C steps Advanced features such as Resistance Error Correction cannot be disabled or modified by software (REC), Beta Compensation (to CPU diodes requiring the BJT or transistor model) and automatic diode type Supports diodes requiring the BJT or transistor model detection combine to provide a robust solution for Resistance Error Correction (up to 100 Ohms) complex environmental monitoring applications. Up to seven External Temperature Monitors Additionally, the EMC1428 provides a hardware 1C Accuracy (60C < T < 100C) DIODE programmable system shutdown feature that is 0.125C Resolution programmed at part power-up via a single TRIP SET Supports up to 2.2nF filter capacitor voltage channel that cannot be masked or corrupted Anti-parallel diodes for extra diode support and through the SMBus. compact design The EMC1428 provides 1 accuracy for external diode Internal Temperature Monitor temperatures and 2C accuracy for the internal diode 2C accuracy temperature. The device monitors up to eight 3.3V Supply Voltage temperature channels (up to seven external and one Available in a 16-pin 4mm x 4mm QFN RoHS internal). Compliant package Applications Programmable temperature limits for ALERT Notebook Computers Desktop Computers Industrial Embedded Applications Block Diagram 2014 Microchip Technology Inc. DS20005275A-page 11C Multiple Temperature Sensor with HW Thermal Shutdown & Hottest of Thermal Zones Data Sheet ORDER NUMBERS: DIODE MODES SMBUS ORDERING NUMBER PACKAGE FEATURES SUPPORTED ADDRESS EMC1428-1-AP-TR 16-pin QFN Up to 7 external diodes. Hottest Of Intel CPU and 1001 100(r/w) (RoHS Compliant) temperature comparison. Hardware 3904 set Critical / Thermal shutdown, ALERT output EMC1428-6-AP-TR 16-pin QFN Up to 7 external diodes. Hottest Of Intel CPU and 1001 101(r/w) (RoHS Compliant) temperature comparison. Hardware 3904 set Critical / Thermal shutdown, ALERT output EMC1428-7-AP-TR- 16-pin QFN Up to 7 external diodes. Hottest Of Intel CPU and Selected by CB7 (RoHS Compliant) temperature comparison. Hardware 3904 pull-up resistor set Critical / Thermal shutdown, on SYS SHDN ALERT output pin Reel Size is 4,000 pieces This product meets the halogen maximum concentration values per IEC61249-2-21 TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors microchip.com. We welcome your feedback. Most Current Data Sheet To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: