JAJSHW4 September   2019 LM74202-Q1

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      概略回路図
      2.      12V での ISO16750-2 ロードダンプ・パルス 5b 性能
  4. 4 改訂履歴
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1      Absolute Maximum Ratings
    2. 6.2      ESD Ratings
    3. 6.3      Recommended Operating Conditions
    4. Table 1. Thermal Information
    5. 6.4      Electrical Characteristics
    6. 6.5      Timing Requirements
    7. 6.6      Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Undervoltage Lockout (UVLO)
      2. 8.3.2 Overvoltage Protection (OVP)
      3. 8.3.3 Reverse Battery Protection
      4. 8.3.4 Hot Plug-In and In-Rush Current Control
      5. 8.3.5 Overload and Short Circuit Protection
        1. 8.3.5.1 Overload Protection
          1. 8.3.5.1.1 Active Current Limiting
          2. 8.3.5.1.2 Electronic Circuit Breaker with Overload Timeout, MODE = OPEN
        2. 8.3.5.2 Short Circuit Protection
          1. 8.3.5.2.1 Start-Up With Short-Circuit On Output
        3. 8.3.5.3 FAULT Response
          1. 8.3.5.3.1 Look Ahead Overload Current Fault Indicator
        4. 8.3.5.4 Current Monitoring
        5. 8.3.5.5 IN, OUT, RTN and GND Pins
        6. 8.3.5.6 Thermal Shutdown
        7. 8.3.5.7 Low Current Shutdown Control (SHDN)
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Step by Step Design Procedure
        2. 9.2.2.2 Setting Undervoltage Lockout and Overvoltage Set Point for Operating Voltage Range
        3. 9.2.2.3 Programming the Current-Limit Threshold—R(ILIM) Selection
        4. 9.2.2.4 Programming Current Monitoring Resistor—RIMON
        5. 9.2.2.5 Limiting the Inrush Current
          1. 9.2.2.5.1 Selection of Input TVS for Transient Protection
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Transient Protection
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12デバイスおよびドキュメントのサポート
    1. 12.1 ドキュメントのサポート
      1. 12.1.1 関連資料
    2. 12.2 ドキュメントの更新通知を受け取る方法
    3. 12.3 コミュニティ・リソース
    4. 12.4 商標
    5. 12.5 静電気放電に関する注意事項
    6. 12.6 Glossary
  13. 13メカニカル、パッケージ、および注文情報

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

9.2.3 Application Curves

LM74202-Q1 apps-hotshort-12VIN-SLVSFD0.pngFigure 40. Protection from Output Short to GND [VIN = 12 V, ILIM = 2.23 A, MODE = RTN]
LM74202-Q1 apps-7637-pulse-12v-L4-SLVSFD0.pngFigure 42. Protection from ISO 7637-2 Pulse 1 [12 V Battery, Transient Voltage = –150 V , RLOAD = 14 Ω]
LM74202-Q1 apps-rpp-12vin-0vout-slvsfd0.pngFigure 44. Protection from Reverse Battery [VIN = -12 V, VOUT = 0 V, ILIM = 2.23 A ]
LM74202-Q1 apps-rcb-12VOUT-0vin-slvsfd0.pngFigure 41. Protection from Output short to Battery [VIN = Floating, VOUT = 12 V, ILIM = 2.23 A, MODE = RTN ]
LM74202-Q1 apps-16750-pulse5b-12v-ovp-cutoff-slvsfd0.pngFigure 43. Protection from ISO 16750-2 Pulse 5b [12 V Battery, Transient Voltage = 35 V , RLOAD = 14 Ω]
LM74202-Q1 apps-OV-12VIN-SLVSFD0.pngFigure 45. Protection from overvoltage at Input [VIN = 36 V, RLOAD = 14 Ω, ILIM = 2.23 A ]