SNIS141F October   2005  – October 2015 LM73

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Temperature-to-Digital Converter Characteristics
    6. 6.6 Logic Electrical Characteristics- Digital DC Characteristics
    7. 6.7 Logic Electrical Characteristics- SMBus Digital Switching Characteristics
    8. 6.8 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Power-On Reset
      2. 7.3.2 One-Shot Conversion
      3. 7.3.3 Temperature Data Format
      4. 7.3.4 SMBus Interface
      5. 7.3.5 ALERT Function
      6. 7.3.6 Communicating With the LM73
        1. 7.3.6.1 Reading from the LM73
        2. 7.3.6.2 Writing to the LM73
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
    5. 7.5 Register Map
      1. 7.5.1 LM73 Registers
        1. 7.5.1.1 Pointer Register
        2. 7.5.1.2 Temperature Data Register
        3. 7.5.1.3 Configuration Register
        4. 7.5.1.4 THIGH Upper-Limit Register
        5. 7.5.1.5 TLOW Lower-Limit Register
        6. 7.5.1.6 Control/Status Register
        7. 7.5.1.7 Identification Register
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Thermal Path Considerations
      2. 8.1.2 Output Considerations: Tight Accuracy, Resolution and Low Noise
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Community Resources
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

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5 Pin Configuration and Functions

SOT-23
6 PINS
TOP VIEW
LM73 20147802.gif

Pin Functions

PIN TYPE EQUIVALENT CIRCUIT FUNCTION
NO. NAME
1 ADDR CMOS Logic
Input
(three levels)
LM73 20147806.gif
Address Select Input: One of three device addresses is selected by connecting to ground, left floating, or connecting to VDD.
2 GND Ground Ground
3 VDD Power Supply Voltage
4 SMBCLK CMOS Logic
Input
LM73 20147805.gif
Serial Clock: SMBus clock signal. Operates up to 400 kHz. Low-pass filtered.
5 ALERT Open-Drain Output
LM73 20147804.gif
Digital output which goes active whenever the measured temperature exceeds a programmable temperature limit.
6 SMBDAT Open-Drain
Input/Output
LM73 20147805.gif
Serial Data: SMBus bi-directional data signal used to transfer serial data synchronous to the SMBCLK. Low-pass filtered.
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