JAJSLG5 december   2022 LM7481

PRODUCTION DATA  

  1.   1
  2. 特長
  3. アプリケーション
  4. 概要
  5. Revision History
  6. Pin Configuration and Functions
  7. 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
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics
  8. Parameter Measurement Information
  9. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Charge Pump
      2. 8.3.2 Dual Gate Control (DGATE, HGATE)
        1. 8.3.2.1 Reverse Battery Protection (A, C, DGATE)
        2. 8.3.2.2 Load Disconnect Switch Control (HGATE, OUT)
      3. 8.3.3 Overvoltage Protection and Battery Voltage sensing (VSNS, SW, OV)
      4. 8.3.4 Low Iq Shutdown and Undervoltage Lockout (EN/UVLO)
    4. 8.4 Device Functional Modes
    5. 8.5 Application Examples
      1. 8.5.1 Redundant Supply OR-ing With Inrush Current Limiting, Overvoltage Protection and ON/OFF Control
  10. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical 12-V Reverse Battery Protection Application
      1. 9.2.1 Design Requirements for 12-V Battery Protection
      2. 9.2.2 Automotive Reverse Battery Protection
      3. 9.2.3 Detailed Design Procedure
        1. 9.2.3.1 Design Considerations
        2. 9.2.3.2 Charge Pump Capacitance VCAP
        3. 9.2.3.3 Input and Output Capacitance
        4. 9.2.3.4 Hold-up Capacitance
        5. 9.2.3.5 Overvoltage Protection and Battery Monitor
      4. 9.2.4 MOSFET Selection: Blocking MOSFET Q1
      5. 9.2.5 MOSFET Selection: Hot-Swap MOSFET Q2
      6. 9.2.6 TVS selection
      7. 9.2.7 Application Curves
    3. 9.3 Do's and Don'ts
    4. 9.4 Power Supply Recommendations
      1. 9.4.1 Transient Protection
      2. 9.4.2 TVS Selection for 12-V Battery Systems
      3. 9.4.3 TVS Selection for 24-V Battery Systems
    5. 9.5 Layout
      1. 9.5.1 Layout Guidelines
      2. 9.5.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 ドキュメントの更新通知を受け取る方法
    2. 10.2 サポート・リソース
    3. 10.3 Trademarks
    4. 10.4 静電気放電に関する注意事項
    5. 10.5 用語集
  12. 11Mechanical, Packaging, and Orderable Information

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

Typical Characteristics

GUID-20221216-SS0I-RJ43-JFW1-MHR2G8C9CMNV-low.svgFigure 6-1 Operating Quiescent Current vs Supply Voltage
GUID-20221216-SS0I-VGRS-LTTN-PVWWMDKFBKV7-low.svgFigure 6-3 Shutdown Supply Current vs Supply Voltage
GUID-20221216-SS0I-LCG2-MCFD-LXQG3LGZ0HGF-low.svg
Figure 6-5 Charge Pump V-I Characteristics at VS ≥ 12 V
GUID-20221216-SS0I-TBX1-CMB4-QNFB1M3KL4Z6-low.svg
Figure 6-7 HGATE Drive Voltage vs Supply Voltage
GUID-20221216-SS0I-HZJG-MJQV-HCCGM7CKBT5W-low.svg
Figure 6-9 UVLO Thresholds vs Temperature
GUID-20221216-SS0I-QQF0-XDMQ-HS3WB2C6NBS7-low.svg
Figure 6-11 Charge Pump UVLO Threshold vs Temperature
GUID-20221216-SS0I-9H6Q-ZRXB-7D9L3QZMW1ST-low.svgFigure 6-13 VS POR Threshold vs Temperature
GUID-20221216-SS0I-KX3T-NTZN-TJJCJXHZJMQN-low.svg
Figure 6-15 HGATE Current (IHGATE) vs Supply Voltage
GUID-33569AA5-1DDA-4D01-A1F5-C3BFCF5B8059-low.gifFigure 6-2 Operating Quiescent Current vs Supply Voltage (> 10 V)
GUID-20221216-SS0I-FMVM-WS1Q-SWPM7X9DGBSZ-low.svg
Figure 6-4 Charge Pump Current vs Supply Voltage at CAP = 6 V
GUID-20221216-SS0I-ZWF6-9ZJD-L9NSZ7RFKZDP-low.svg
Figure 6-6 DGATE Drive Voltage vs Supply Voltage
GUID-20221216-SS0I-JJX7-BG7T-GWCWQVTXJCLC-low.svg
Figure 6-8 ANODE Leakage Current vs Reverse ANODE Voltage
GUID-20221216-SS0I-D6XK-LFSN-ZTQJBJCNBM96-low.svg
Figure 6-10 OVP Thresholds vs Temperature
GUID-20221216-SS0I-HVJZ-WKBV-TTJ9MC8KBKNM-low.svg
Figure 6-12 VA POR Threshold vs Temperature
GUID-20221216-SS0I-2ZG0-9CWQ-M6MQCQ9BFCD0-low.svgFigure 6-14 HGATE Turn OFF Delay During OV