JAJSF47A April   2018  – May 2018 UCC28742

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.      10W、5VのAC/DCコンバータの標準的な効率
  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. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 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 Detailed Pin Description
        1. 7.3.1.1 VDD (Device Bias Voltage Supply)
        2. 7.3.1.2 GND (Ground)
        3. 7.3.1.3 VS (Voltage-Sense)
        4. 7.3.1.4 DRV (Gate Drive)
        5. 7.3.1.5 CS (Current Sense)
        6. 7.3.1.6 FB (Feedback)
      2. 7.3.2 Secondary-Side Optically Coupled Constant-Voltage (CV) Regulation
      3. 7.3.3 Control Law
      4. 7.3.4 Constant Current Limit and Delayed Shutdown
      5. 7.3.5 Valley-Switching and Valley-Skipping
      6. 7.3.6 Start-Up Operation
      7. 7.3.7 Fault Protection
    4. 7.4 Device Functional Modes
  8. 8 Applications and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1  Custom Design With WEBENCH® Tools
        2. 8.2.2.2  VDD Capacitance, CDD
        3. 8.2.2.3  VDD Start-Up Resistance, RSTR
        4. 8.2.2.4  Input Bulk Capacitance and Minimum Bulk Voltage
        5. 8.2.2.5  Transformer Turns Ratio, Inductance, Primary-Peak Current
        6. 8.2.2.6  Transformer Parameter Verification
        7. 8.2.2.7  VS Resistor Divider and Line Compensation
        8. 8.2.2.8  Standby Power Estimate
        9. 8.2.2.9  Output Capacitance
        10. 8.2.2.10 Feedback Loop Design Consideration
      3. 8.2.3 Application Curves
    3. 8.3 Do's and Don'ts
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11デバイスおよびドキュメントのサポート
    1. 11.1 デバイス・サポート
      1. 11.1.1 開発サポート
        1. 11.1.1.1 WEBENCH®ツールによるカスタム設計
      2. 11.1.2 デバイスの項目表記
        1. 11.1.2.1  容量項(ファラッド単位)
        2. 11.1.2.2  デューティ・サイクル項
        3. 11.1.2.3  周波数項(ヘルツ単位)
        4. 11.1.2.4  電流項(アンペア単位)
        5. 11.1.2.5  電流および電圧のスケーリング項
        6. 11.1.2.6  変圧器の項
        7. 11.1.2.7  電力項(ワット単位)
        8. 11.1.2.8  抵抗項(オーム単位)
        9. 11.1.2.9  タイミング項(秒単位)
        10. 11.1.2.10 電圧項(ボルト単位)
        11. 11.1.2.11 AC電圧項(VRMS単位)
        12. 11.1.2.12 効率項
    2. 11.2 ドキュメントのサポート
      1. 11.2.1 関連資料
    3. 11.3 ドキュメントの更新通知を受け取る方法
    4. 11.4 コミュニティ・リソース
    5. 11.5 商標
    6. 11.6 静電気放電に関する注意事項
    7. 11.7 Glossary
  12. 12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

6.1 Absolute Maximum Ratings

Over operating free-air temperature range (unless otherwise noted) (1)
MIN MAX UNIT
VVDD Bias supply voltage 38 V
VS Voltage range –0.75 7 V
FB Voltage range –0.5 7 V
CS Voltage range –0.5 5 V
VDRV Gate-drive voltage at DRV –0.5 Self-limiting V
IDRV DRV continuous sink current 50 mA
IDRV DRV continuous source current 15 mA
IDRV DRV peak sourcing current, VDRV = 10 V to 0 V Self-limiting mA
IDRV DRV peak sink current, VDRV = 0 V to 10 V Self-limiting mA
IFB FB, peak current 1.0 mA
IVS VS, peak, 1% duty-cycle, when detecting line voltage 1.2 mA
TJ Operating junction temperature range –55 150 °C
TSTG Storage temperature –65 150 °C
TLEAD Lead temperature 0.6 mm from case for 10 seconds 260 °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.