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MAX6689
7-Channel Precision Temperature Monitor

Industry's Smallest 7-Channel Temperature Monitors Accurately Read Temperatures at Multiple Locations and Feature Software and Hardware Standby Modes


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Data Sheet
FULL DATA SHEET (PDF, 240kB)
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Description
The MAX6689 precision multichannel temperature sensor monitors its own temperature and the temperatures of up to six external diode-connected transistors. All temperature channels have programmable alert thresholds. Channels 1, 4, 5, and 6 also have programmable overtemperature thresholds. When the measured temperature of a channel exceeds the respective threshold, a status bit is set in one of the status registers. Two open-drain outputs, active-low OVERT and active-low ALERT, assert corresponding to these bits in the status register.

The 2-wire serial interface supports the standard system management bus (SMBus™) protocols: write byte, read byte, send byte, and receive byte for reading the temperature data and programming the alarm thresholds.

The MAX6689 is specified for an operating temperature range of -40°C to +125°C and is available in 20-pin QSOP and TSSOP packages.

Key Features   Applications/Uses
  • Six Thermal-Diode Inputs
  • Local Temperature Sensor
  • 1°C Remote Temperature Accuracy (+60°C to +100°C)
  • Temperature Monitoring Begins at POR for Fail-Safe System Protection
  • Active-Low ALERT and Active-Low OVERT Outputs for Interrupts, Throttling, and Shutdown
  • Active-Low STBY Input for Hardware Standby Mode
  • Small, 20-Pin QSOP and TSSOP Packages
  • 2-Wire SMBus Interface

 
  • Desktop Computers
  • Notebook Computers
  • Servers
  • Workstations

    Key Specifications:   Temperature Sensors
    Part Number Sensor Type Alarm Output Functions Interface Remote Channels Accuracy (±°C) Parasite Power Temperature Threshold Temperature Resolution (Bits) Operating Temp. Range (°C) Smallest Available Package (max w/pins) (mm2) Price**
    MAX6689  Remote Alert
    Overt
    Dual Temperature Alarms
    Multi-Channel Temperature Monitor
    Remote & Local Sensor
    2-Wire/I2C/SMBus Six 1 No Programmable 11 -40 to +125 45 $3.75 @ 1k
    See All Temperature Sensors (99)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Diagram
    MAX6689: Typical Application Circuit
    Typical Application Circuit

    Evaluation Kits
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    Design Guides
  • Temp Sensors (PDF)

    Reliability Reports
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    Software/Models
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    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-4 of 4

    MAX6689 Free
    Sample
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    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX6689UP34+T  


    Land Pattern: Not Available

    -40°C to +125°C See data sheet
    MAX6689UP9A+  
    TSSOP;20 pin;45 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20+2*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6689UP9A+T  
    TSSOP;20 pin;45 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20+2*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6689UP34+  
    TSSOP;20 pin;45 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20+2*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  • New Product Press Release 2006-08-25 

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    Document Ref.: 19-0567; Rev 1; 2007-09-25
    This page last modified: 2007-09-25


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