SLUSFA9 June   2024 UCC27524

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Description (continued)
  6. 5 Pin Configuration and Functions
  7. 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 Switching Characteristics
    7. 6.7 Timing Diagrams
    8. 6.8 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Operating Supply Current
      2. 7.3.2 Input Stage
      3. 7.3.3 Enable Function
      4. 7.3.4 Output Stage
      5. 7.3.5 Low Propagation Delays and Tightly Matched Outputs
    4. 7.4 Device Functional Modes
  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 VDD and Undervoltage Lockout
        2. 8.2.2.2 Drive Current and Power Dissipation
      3. 8.2.3 Application Curves
  10. 9 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 Third-Party Products Disclaimer
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information

8.2.3 Application Curves

The figures below show the typical switching characteristics of the UCC27524 device used in high-voltage boost converter application. In this application, the UCC27524 is driving the IGBT switch that has a gate charge of 110 nC.

UCC27524 UCC27524 Used to Drive IGBT in the Boost Converter Figure 8-3 UCC27524 Used to Drive IGBT in the Boost Converter
UCC27524 Turn-On Propagation Delay Waveform
Vin = 210 V, Vout = 235 V, Iout = 1.14 A, Fsw = 125 kHz, driver supply voltage = 15 V, gate resistor = 0 Ω
Figure 8-4 Turn-On Propagation Delay Waveform
UCC27524 Turn-Off Propagation Delay Waveform
Vin = 210 V, Vout = 235 V, Iout = 1.14 A, Fsw = 100 kHz, driver supply voltage = 15 V, gate resistor = 0 Ω
Figure 8-5 Turn-Off Propagation Delay Waveform