EMC1428-6-AP-TR SMSC, EMC1428-6-AP-TR Datasheet

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EMC1428-6-AP-TR

Manufacturer Part Number
EMC1428-6-AP-TR
Description
Board Mount Temperature Sensors Octal Temp Sensor Autobeta Comp Alert
Manufacturer
SMSC
Datasheet

Specifications of EMC1428-6-AP-TR

Full Temp Accuracy
+/- 0.25 C, +/- 0.5 C
Package / Case
QFN EP
Digital Output - Bus Interface
Serial (2-Wire)
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Output Type
Digital
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
PRODUCT FEATURES
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.
Additionally, the EMC1428 provides a hardware
programmable system shutdown feature that is
programmed at part power-up via a single TRIP_SET
voltage channel that cannot be masked or corrupted
through the SMBus.
Each device provides ±1° accuracy for external diode
temperatures and ±2°C accuracy for the internal diode
temperature. The EMC1428 monitors up to eight
temperature channels (up to seven external and one
internal).
Applications
SMSC EMC1428
DP2 / DN3
DN2 / DP3
DP4 / DN5
DN4 / DP5
DP6 / DN7
DN6 / DP7
Notebook Computers
Desktop Computers
Industrial
Embedded Applications
DP1
DN1
External
parallel
Inputs
Temp
Diode
diode
Anti-
TRIP_SET
Internal
Analog
Temp
Diode
Mux
PRODUCT PREVIEW
Block Diagram
Critical / Thermal
Shutdown Logic
SYS_SHDN
11 bit Σ Δ
ADC
Features
Hardware Thermal Shutdown
Designed to support 45nm, 65nm, and 90nm CPU
Supports diodes requiring the BJT or transistor model
Resistance Error Correction (up to 100 Ohms)
Up to seven External Temperature Monitors
Internal Temperature Monitor
3.3V Supply Voltage
Available in a 16-pin 4mm x 4mm QFN lead-free
Programmable temperature limits for ALERT
— triggers dedicated SYS_SHDN pin
— hardware configured range 65°C to 127°C in 1°C steps
— cannot be disabled or modified by software
diodes
— ±1°C Accuracy (60°C < T
— 0.125°C Resolution
— Supports up to 2.2nF filter capacitor
— Anti-parallel diodes for extra diode support and
— ±2°C accuracy
RoHS Compliant package
1°C Multiple Temperature
Sensor with HW Thermal
Shutdown & Hottest of
Thermal Zones
EMC1428
Hottest of Comparison
compact design
Voltage Register
Temp Registers
Voltage to Temp
conversion
DIODE
Protocol
SMBus
Slave
Revision 0.69 (06-29-09)
< 100°C)
Data Brief
SMDATA
ALERT
SMCLK

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EMC1428-6-AP-TR Summary of contents

Page 1

... PRODUCT FEATURES 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 ...

Page 2

... ORDERING NUMBER PACKAGE EMC1428-1-AP-TR 16-pin QFN (Lead-Free RoHS Compliant) EMC1428-6-AP-TR 16-pin QFN (Lead-Free RoHS Compliant) EMC1428-7-AP-TR 16-pin QFN (Lead-Free RoHS Compliant) 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123 Copyright © 2009 SMSC or its subsidiaries. All rights reserved. Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for construction purposes is not necessarily given ...

Page 3

... Multiple Temperature Sensor with HW Thermal Shutdown & Hottest of Thermal Zones Package Outline EMC1428 Package Drawing Figure 1 16-Pin QFN 4mm x 4mm Package Dimensions SMSC EMC1428 3 PRODUCT PREVIEW Revision 0.69 (06-29-09) ...

Page 4

... Figure 2 16-Pin QFN 4mm x 4mm Package Drawing Revision 0.69 (06-29-09) 1°C Multiple Temperature Sensor with HW Thermal Shutdown & Hottest of Thermal Zones 4 PRODUCT PREVIEW SMSC EMC1428 ...

Page 5

... Multiple Temperature Sensor with HW Thermal Shutdown & Hottest of Thermal Zones Figure 3 16-Pin QFN 4mm x 4mm PCB Footprint SMSC EMC1428 5 PRODUCT PREVIEW Revision 0.69 (06-29-09) ...

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