JAJSC57F November   2002  – November 2023 UCC27423 , UCC27424 , UCC27425

PRODUCTION DATA  

  1.   1
  2. 特長
  3. アプリケーション
  4. 概要
  5. Device Comparison Table
  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 Dissipation Ratings
    7. 6.7 Typical Characteristics
  8. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Enable
      2. 7.3.2 Input Stage
      3. 7.3.3 Output Stage
    4. 7.4 Device Functional Modes
  9. Application 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 Source and Sink Capabilities During Miller Plateau
        2. 8.2.2.2 Parallel Outputs
        3. 8.2.2.3 VDD
        4. 8.2.2.4 Drive Current and Power Requirements
      3. 8.2.3 Application Curves
  10. Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
  12. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 サード・パーティ製品に関する免責事項
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 ドキュメントの更新通知を受け取る方法
    4. 11.4 サポート・リソース
    5. 11.5 Trademarks
    6. 11.6 静電気放電に関する注意事項
    7. 11.7 用語集
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information

パッケージ・オプション

デバイスごとのパッケージ図は、PDF版データシートをご参照ください。

メカニカル・データ(パッケージ|ピン)
  • D|8
  • P|8
  • DGN|8
サーマルパッド・メカニカル・データ
発注情報

Output Stage

Inverting output s of the UCC27423 and OUTA of the UCC27425 are intended to drive external P-channel MOSFETs. Noninverting outputs of the UCC27424 and OUTB of the UCC27425 are intended to drive external N-Channel MOSFETs. Each output stage is capable of supplying ±4 A peak current pulses and swings to both VDD and GND. The pullup/pulldown circuits of the driver are constructed of bipolar and MOSFET transistors in parallel. The peak output current rating is the combined current from the bipolar and MOSFET transistors. The output resistance is the RDS(on) of the MOSFET transistor when the voltage on the driver output is less than the saturation voltage of the bipolar transistor. Each output stage also provides very low impedance to overshoot and undershoot due to the body diode of the external MOSFET. This means that in many cases, external-Schottky-clamp diodes are not required. The UCC2742x family delivers 4 A of gate drive where it is most needed during the MOSFET switching transition (at the Miller plateau region) providing improved efficiency gains. A unique Bipolar and MOSFET hybrid output stage in parallel also allows efficient current sourcing at low supply voltages.