SNOSB28H August   2010  – October 2026 LMP8640 , LMP8640HV

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 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 Electrical Characteristics 2.7V
    6. 6.6 Electrical Characteristics 5 V
    7. 6.7 Electrical Characteristics 12V
    8. 6.8 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Selection of Sense Resistor
        1. 7.3.1.1 Resistor Power Rating and Thermal Issues
        2. 7.3.1.2 Using PCB Trace as a Sense Resistor
      2. 7.3.2 Sense Line Inputs
      3. 7.3.3 Effects of Series Resistance on Sense Lines
    4. 7.4 Device Functional Modes
      1. 7.4.1 Bias Current at Low Common Mode Voltage
      2. 7.4.2 Applying Input Voltage With No Supply Voltage
      3. 7.4.3 Driving an ADC
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Design Procedure
        1. 8.2.2.1 First Step – LMP8640 or LMP8640HV Selection
        2. 8.2.2.2 Second Step – Gain Option Selection
        3. 8.2.2.3 Third Step – Shunt Resistor Selection
      3. 8.2.3 Application Curve
    3. 8.3 What to Do and What Not to Do
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.4 Thermal Information

THERMAL METRIC(1) LMP8640
LMP8640HV		 UNIT
THIN SOT-23
6 PINS
RθJA Junction-to-ambient thermal resistance 151.5 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 92.4
RθJB Junction-to-board thermal resistance 55.9
ψJT Junction-to-top characterization parameter 41.1
ψJB Junction-to-board characterization parameter 55.8
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application note.