JAJSGD5E October   2014  – October 2018 LM5160 , LM5160A

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      代表的な同期整流降圧アプリケーション回路
      2.      代表的なFly-Buckアプリケーション回路
  4. 4 改訂履歴
  5. 5 概要（続き）
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Switching Characteristics
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Control Circuit
      2. 8.3.2  VCC Regulator
      3. 8.3.3  Regulation Comparator
      4. 8.3.4  Soft Start
      5. 8.3.5  Error Amplifier
      6. 8.3.6  On-Time Generator
      7. 8.3.7  Current Limit
      8. 8.3.8  N-Channel Buck Switch and Driver
      9. 8.3.9  Synchronous Rectifier
      10. 8.3.10 Enable / Undervoltage Lockout (EN/UVLO)
      11. 8.3.11 Thermal Protection
    4. 8.4 Device Functional Modes
      1. 8.4.1 Forced Pulse Width Modulation (FPWM) Mode
      2. 8.4.2 Undervoltage Detector
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Ripple Configuration
    2. 9.2 Typical Applications
      1. 9.2.1 LM5160 Synchronous Buck (10-V to 60-V Input, 5-V Output, 1.5-A Load)
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1  Custom Design With WEBENCH® Tools
          2. 9.2.1.2.2  Feedback Resistor Divider - RFB1, RFB2
          3. 9.2.1.2.3  Switching Frequency - RON
          4. 9.2.1.2.4  Inductor - L
          5. 9.2.1.2.5  Output Capacitor - COUT
          6. 9.2.1.2.6  Series Ripple Resistor - RESR
          7. 9.2.1.2.7  VCC and Bootstrap Capacitors - CVCC, CBST
          8. 9.2.1.2.8  Input Capacitor - CIN
          9. 9.2.1.2.9  Soft-Start Capacitor - CSS
          10. 9.2.1.2.10 EN/UVLO Resistors - RUV1, RUV2
        3. 9.2.1.3 Application Curves
      2. 9.2.2 LM5160 Isolated Fly-Buck (18-V to 32-V Input, 12-V, 4.5-W Isolated Output)
        1. 9.2.2.1 LM5160 Fly-Buck Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
          1. 9.2.2.2.1 Selection of VOUT1 and Turns Ratio
          2. 9.2.2.2.2 Secondary Rectifier Diode
          3. 9.2.2.2.3 External Ripple Circuit
          4. 9.2.2.2.4 Output Capacitor - COUT2
        3. 9.2.2.3 Application Curves
      3. 9.2.3 LM5160A Isolated Fly-Buck (18-V to 32-V Input, 12-V, 4.5-W Isolated Output)
    3. 9.3 Do's and Don'ts
  10. 10Power Supply Recommendations
  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 デバイス・サポート
      1. 12.1.1 デベロッパー・ネットワークの製品に関する免責事項
      2. 12.1.2 開発サポート
        1. 12.1.2.1 WEBENCH®ツールによるカスタム設計
    2. 12.2 ドキュメントのサポート
      1. 12.2.1 関連資料
    3. 12.3 関連リンク
    4. 12.4 ドキュメントの更新通知を受け取る方法
    5. 12.5 コミュニティ・リソース
    6. 12.6 商標
    7. 12.7 静電気放電に関する注意事項
    8. 12.8 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

7.1 Absolute Maximum Ratings

Over the recommended operating junction temperature of –40°C to 125°C (unless otherwise noted).(1)(2)
MIN MAX UNIT
Input voltages VIN to AGND –0.3 70 V
EN/UVLO to AGND –0.3 70
RON to AGND –0.3 70
BST to AGND –0.3 84
VCC to AGND –0.3 14
FPWM to AGND –0.3 14
SS to AGND –0.3 7
FB to AGND –0.3 7
Output voltages BST to SW –0.3 14 V
BST to VCC 70
SW to AGND –1.5 70
SW to AGND (20-ns transient) –3
Operating junction temperature, TJ(3) –40 150 °C
Storage temperature, Tstg –65 150 °C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) If Military/Aerospace specified devices are required, contact the Texas Instruments Sales Office/ Distributors for availability and specifications.
(3) High junction temperatures degrade operating lifetimes. Operating lifetime is derated for junction temperatures greater than 125°C.