ZHCSF55E June   2016  – December 2021 UCC21520

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 说明（续）
  6. 6 Pin Configuration and 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  Power Ratings
    6. 7.6  Insulation Specifications
    7. 7.7  Safety-Related Certifications
    8. 7.8  Safety-Limiting Values
    9. 7.9  Electrical Characteristics
    10. 7.10 Switching Characteristics
    11. 7.11 Insulation Characteristics Curves
    12. 7.12 Typical Characteristics
  8. 8 Parameter Measurement Information
    1. 8.1 Propagation Delay and Pulse Width Distortion
    2. 8.2 Rising and Falling Time
    3. 8.3 Input and Disable Response Time
    4. 8.4 Programable Dead Time
    5. 8.5 Power-up UVLO Delay to OUTPUT
    6. 8.6 CMTI Testing
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 VDD, VCCI, and Undervoltage Lock Out (UVLO)
      2. 9.3.2 Input and Output Logic Table
      3. 9.3.3 Input Stage
      4. 9.3.4 Output Stage
      5. 9.3.5 Diode Structure in the UCC21520 and the UCC21520A
    4. 9.4 Device Functional Modes
      1. 9.4.1 Disable Pin
      2. 9.4.2 Programmable Dead-Time (DT) Pin
        1. 9.4.2.1 Tying the DT Pin to VCC
        2. 9.4.2.2 DT Pin Connected to a Programming Resistor between DT and GND Pins
        3. 9.4.2.3 41
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Designing INA/INB Input Filter
        2. 10.2.2.2 Select External Bootstrap Diode and its Series Resistor
        3. 10.2.2.3 Gate Driver Output Resistor
        4. 10.2.2.4 Gate to Source Resistor Selection
        5. 10.2.2.5 Estimate Gate Driver Power Loss
        6. 10.2.2.6 Estimating Junction Temperature
        7. 10.2.2.7 Selecting VCCI, VDDA/B Capacitor
          1. 10.2.2.7.1 Selecting a VCCI Capacitor
          2. 10.2.2.7.2 Selecting a VDDA (Bootstrap) Capacitor
          3. 10.2.2.7.3 Select a VDDB Capacitor
        8. 10.2.2.8 Dead Time Setting Guidelines
        9. 10.2.2.9 Application Circuits with Output Stage Negative Bias
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 第三方米6体育平台手机版_好二三四免责声明
    2. 13.2 Documentation Support
      1. 13.2.1 Related Documentation
    3. 13.3 Certifications
    4. 13.4 Receiving Notification of Documentation Updates
    5. 13.5 支持资源
    6. 13.6 Trademarks
    7. 13.7 Electrostatic Discharge Caution
    8. 13.8 术语表
  14. 14Mechanical, Packaging, and Orderable Information
10.2.2.7.1 Selecting a VCCI Capacitor

A bypass capacitor connected to VCCI supports the transient current needed for the primary logic and the total current consumption, which is only a few mA. Therefore, a 50-V MLCC with over 100 nF is recommended for this application. If the bias power supply output is a relatively long distance from the VCCI pin, a tantalum or electrolytic capacitor, with a value over 1 µF, should be placed in parallel with the MLCC.
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