JAJSGJ8C November   2018  – September 2019 UCC20225-Q1 , UCC20225A-Q1

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      機能ブロック図
  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  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 Thermal Derating 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 PWM 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 Under Voltage 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 UCC20225-Q1 family
    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 Left Open or Connected to a Programming Resistor between DT and GND Pins
  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 PWM 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 Estimate Gate Driver Power Loss
        5. 10.2.2.5 Estimating Junction Temperature
        6. 10.2.2.6 Selecting VCCI, VDDA/B Capacitor
          1. 10.2.2.6.1 Selecting a VCCI Capacitor
          2. 10.2.2.6.2 Selecting a VDDA (Bootstrap) Capacitor
          3. 10.2.2.6.3 Select a VDDB Capacitor
        7. 10.2.2.7 Dead Time Setting Guidelines
        8. 10.2.2.8 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. 13デバイスおよびドキュメントのサポート
    1. 13.1 関連リンク
    2. 13.2 ドキュメントのサポート
      1. 13.2.1 関連資料
    3. 13.3 認定
    4. 13.4 ドキュメントの更新通知を受け取る方法
    5. 13.5 コミュニティ・リソース
    6. 13.6 商標
    7. 13.7 静電気放電に関する注意事項
    8. 13.8 Glossary
  14. 14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

10.2.3 Application Curves

Figure 41 and Figure 42 shows the bench test waveforms for the design example shown in Figure 37 under these conditions: VCC = 5 V, VDD = 12 V, fSW = 200 kHz, VDC-Link = 400 V.

Channel 1 (Indigo): UCC20225-Q1 family's PWM pin signal.

Channel 2 (Cyan): Gate-source signal on the high side power transistor.

Channel 3 (Magenta): Gate-source signal on the low side power transistor.

In Figure 41, PWM is sent a 3.3 V, 20% duty-cycle signal. The gate drive signals on the power transistor have a 250-ns dead time, shown in the measurement section of Figure 41. The dead time matching is 10-ns with the 250-ns dead time setting. Note that with high voltage present, lower bandwidth differential probes are required, which limits the achievable accuracy of the measurement.

Figure 42 shows a zoomed-in version of the waveform of Figure 41, with measurements for propagation delay and rising/falling time. Importantly, the output waveform is measured between the power transistors’ gate and source pins, and is not measured directly from the driver OUTA and OUTB pins. Due to the split on and off resistors (RON, ROFF), different sink and source currents, and the Miller plateau, different rising (60, 120 ns) and falling time (25 ns) are observed in Figure 42.

UCC20225-Q1 UCC20225A-Q1 fig37a_SLUSCV8.gif
Figure 41. Bench Test Waveform for PWM and OUTA/B
UCC20225-Q1 UCC20225A-Q1 fig38b_SLUSCV8.gif
Figure 42. Zoomed-In bench-test waveform