SLUSFX5 December   2024 UCC57102Z

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
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics
    7. 5.7 Timing Diagrams
    8. 5.8 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Input Stage
      2. 6.3.2 Driver Stage
      3. 6.3.3 Desaturation (DESAT) Protection
      4. 6.3.4 Fault (FLT)
      5. 6.3.5 VREF
      6. 6.3.6 Thermal Shutdown
    4. 6.4 Device Functional Modes
  8. 7  Applications and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 VDD Undervoltage Lockout
      3. 7.2.3 Application Curves
  9. 8 Power Supply Recommendations
  10. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Third-Party Products Disclaimer
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

6.3.4 Fault (FLT)

The FLT pin of the UCC57102Z can report a fault signal to the DSP/MCU when a fault is detected through the DESAT pin and internal TSD. The FLT pin is pulled down to GND after the fault is detected and is held low until the fault is cleared. It can be pull up to external voltage rail up to VDD level with the considersion that the maximum sink current on the FLT is 20mA. Also a 100pF capacitor between FLT and GND is recommened.