SNVSCN8A September   2025  – October 2025 TPS923610 , TPS923611 , TPS923612

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  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 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 Enable and Start-up
      2. 7.3.2 Under-Voltage Lockout (UVLO)
      3. 7.3.3 Shutdown
      4. 7.3.4 Boost Control Operation
      5. 7.3.5 Switching Peak Current Limit
      6. 7.3.6 Over-Voltage Protection
      7. 7.3.7 Output Current Setting
      8. 7.3.8 Output Current PWM Controlled Analog Dimming
      9. 7.3.9 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation Mode
      2. 7.4.2 Over-Voltage Protection Mode
      3. 7.4.3 Shutdown Mode
  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 LED Current Set Resistor
        2. 8.2.2.2 Inductor Selection
        3. 8.2.2.3 Output Capacitor Selection
        4. 8.2.2.4 Thermal Considerations
    3. 8.3 Power Supply Recommendations
    4. 8.4 Application Curves
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

7.3.6 Over-Voltage Protection

The TPS923610/1/2 integrates over-voltage protection preventing over-voltage on the output and securing the circuits connected to the output from excessive-voltage damage in fault conditions, such as LED string open circuit.

When the voltage of VOUT pin exceeds VOVP_R, the TPS923610/1/2 stops switching immediately until the voltage at the VOUT pin drops the hysteresis value to lower than VOVP_R-VOVP_HYS. Then, the switching restarts again. After the detection above is triggered 3 times, the TPS923610/1/2 enters over-voltage protection mode, in which the switching stops and does not resume switching even if the voltage at the VOUT pin falls below VOVP_R-VOVP_HYS. The TPS923610/1/2 remains in over-voltage protection mode until it is reset by two ways, which are shutdown and re-enabling device by the ADIM pin or triggering UVLO by the VIN pin.