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EMC1404

Status: In Production

Features:

  • supports 45nm, 65nm, and 90nm CPU thermal diodes.
  • Automatically determines external diode type and optimal settings
  • Resistance Error Correction
  • ±1°C Accuracy (60°C < TDIODE < 100°C)
  • 0.125°C resolution
  • Anti-parallel diodes for extra diode support
  • ±2°C accuracy
  • 3.3V Supply Voltage
  • Programmable temperature limits for ALERT# and THERM#
  • 10-pin 3mm x 3mm DFN
  • 10-pin MSOP
  • 14-pin SOIC
  • Notebook Computers
  • Desktop Computers
  • Industrial
  • Embedded applications
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The EMC1403 and EMC1404 are high accuracy, low cost, System Management Bus (SMBus) temperature sensors. 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.

Each device provides ±1° accuracy for external diode temperatures and ±2°C accuracy for the internal diode temperature. The EMC1403 monitors three temperature channels (two external and one internal). The EMC1404 monitors four temperature channels (three external and one internal).

Resistance Error Correction automatically eliminates the temperature error caused by series resistance allowing greater flexibility in routing thermal diodes. Beta Compensation eliminates temperature errors caused by low, variable beta transistors common in today's fine geometry processors. The automatic beta detection feature monitors each external diode/transistor and determines the optimum sensor settings for accurate temperature measurements regardless of processor technology. This frees the user from providing unique sensor configurations for each temperature monitoring application. These advanced features plus ±1°C measurement accuracy provide a low-cost, highly flexible and accurate solution for critical temperature monitoring applications.

Additional Features

    Features

    • Support for diodes requiring the BJT/transistor model
      • supports 45nm, 65nm, and 90nm CPU thermal diodes.
    • 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
      • Anti-parallel diodes for extra diode support
    • Internal Temperature Monitor
      • ±2°C accuracy
    • 3.3V Supply Voltage
    • Programmable temperature limits for ALERT# and THERM#
    • Available in these RoHS Compliant Packages
      • 10-pin 3mm x 3mm DFN
      • 10-pin MSOP
      • 14-pin SOIC

    Applications

    • Notebook Computers
    • Desktop Computers
    • Industrial
    • Embedded applications
Parametrics
Name
Value
# Temps Monitored
4
Typical Accuracy (°)
0.25
Max. Accuracy @ 25° (°)
1
Max Input/ Supply Current (µA)
430
Temp. Range (°C)
-40 to +125
Operating Voltage Range (V)
+3.0 to +3.6
Typ Supply Current (µA)
430
Alert/THERM
2
Resistance Error Correction
Yes
Beta Compensation
Automatic
Ideality Factor
Yes
Device Description
Digital Temperature Sensor

Documents

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
EMC1404-2-AIZL-TR
0.023200
0.200000
10
MSOP
3x3mm
Matte Tin
e3
EMC1404-4-AIZL-TR
0.023900
0.156000
10
MSOP
3x3x1.0mm
NiPdAu
e4
EMC1404-3-AIZL-TR
0.023900
0.156000
10
MSOP
3x3x1.0mm
NiPdAu
e4
EMC1404-1-AIZL-TR
0.023900
0.156000
10
MSOP
3x3x1.0mm
NiPdAu
e4
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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