SLUSDG3F August   2018  – September 2024

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings (Automotive)
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Power Ratings
    6. 5.6  Insulation Specifications
    7. 5.7  Safety Limiting Values
    8. 5.8  Electrical Characteristics
    9. 5.9  Timing Requirements
    10. 5.10 Switching Characteristics
    11. 5.11 Insulation Characteristics Curves
    12. 5.12 Typical Characteristics
  7. 6 Parameter Measurement Information
    1. 6.1 Propagation Delay and Pulse Width Distortion
    2. 6.2 Rising and Falling Time
    3. 6.3 Input and Enable Response Time
    4. 6.4 Programable Dead Time
    5. 6.5 Power-Up UVLO Delay to OUTPUT
    6. 6.6 CMTI Testing
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 VDD, VCCI, and Under Voltage Lock Out (UVLO)
      2. 7.3.2 Input and Output Logic Table
      3. 7.3.3 Input Stage
      4. 7.3.4 Output Stage
      5. 7.3.5 Diode Structure in UCC21530-Q1
    4. 7.4 Device Functional Modes
      1. 7.4.1 Enable Pin
      2. 7.4.2 Programmable Dead Time (DT) Pin
        1. 7.4.2.1 DT Pin Tied to VCC
        2. 7.4.2.2 DT Pin Connected to a Programming Resistor between DT and GND Pins
  9. 8 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 Designing INA/INB Input Filter
        2. 8.2.2.2 Select Dead Time Resistor and Capacitor
        3. 8.2.2.3 Gate Driver Output Resistor
        4. 8.2.2.4 Estimate Gate Driver Power Loss
        5. 8.2.2.5 Estimating Junction Temperature
        6. 8.2.2.6 Selecting VCCI, VDDA/B Capacitor
          1. 8.2.2.6.1 Selecting a VCCI Capacitor
        7. 8.2.2.7 Other Application Example Circuits
      3. 8.2.3 Application Curves
  10. 9 Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Component Placement Considerations
      2. 10.1.2 Grounding Considerations
      3. 10.1.3 High-Voltage Considerations
      4. 10.1.4 Thermal Considerations
    2. 10.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Third-Party Products Disclaimer
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Support Resources
    5. 11.5 Trademarks
    6. 11.6 Glossary
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information

6.4 Programable Dead Time

Tying DT to VCCI disables DT feature and allows the outputs to overlap. Placing a resistor (RDT) between DT pin and GND can adjust the dead time. For more details on dead time, refer to Section 7.4.2.

UCC21530-Q1 Dead-Time Switching Parameters Figure 6-4 Dead-Time Switching Parameters
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