SLVSGH1B April   2023  – February 2025 TPS923652 , TPS923653 , TPS923654 , TPS923655

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 Adaptive Off-Time Current Mode Control
        1. 7.3.1.1 Switching Frequency Settings
        2. 7.3.1.2 Spread Spectrum
      2. 7.3.2 Setting LED Current
      3. 7.3.3 Undervoltage Lockout
      4. 7.3.4 Internal Soft Start
      5. 7.3.5 Dimming Mode
        1. 7.3.5.1 PWM Dimming
        2. 7.3.5.2 Analog Dimming
        3. 7.3.5.3 Hybrid Dimming
        4. 7.3.5.4 Flexible Dimming
      6. 7.3.6 CC/CV Charging Mode
      7. 7.3.7 Fault Protection
      8. 7.3.8 Thermal Foldback
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 TPS923654 Boost, 12V Input, 1A Output, 12-piece WLED Driver With Analog Dimming
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Inductor Selection
          2. 8.2.1.2.2 Input Capacitor Selection
          3. 8.2.1.2.3 Output Capacitor Selection
          4. 8.2.1.2.4 Sense Resistor Selection
          5. 8.2.1.2.5 Other External Components Selection
        3. 8.2.1.3 Application Curves
      2. 8.2.2 TPS923654 Buck-Boost, 24V Input, 2A Output, 4-piece WLED Driver with PWM Dimming
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
          1. 8.2.2.2.1 Inductor Selection
          2. 8.2.2.2.2 Input Capacitor Selection
          3. 8.2.2.2.3 Output Capacitor Selection
          4. 8.2.2.2.4 Sense Resistor Selection
          5. 8.2.2.2.5 Other External Components Selection
        3. 8.2.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.6 Typical Characteristics

VIN = 12V, IOUT = 1A, LED count = 12, L = 10µH, FSW = 400kHz, unless otherwise specified
TPS923652 TPS923653 TPS923654 TPS923655 Output Current vs. Input VoltageFigure 6-1 Output Current vs. Input Voltage
TPS923652 TPS923653 TPS923654 TPS923655 ADIM Duty Cycle vs. CSP-CSN Voltage in Analog DimmingFigure 6-3 ADIM Duty Cycle vs. CSP-CSN Voltage in Analog Dimming
TPS923652 TPS923653 TPS923654 TPS923655 Shutdown Current vs. Junction TemperatureFigure 6-5 Shutdown Current vs. Junction Temperature
TPS923652 TPS923653 TPS923654 TPS923655 Switching FET RDSON vs. Junction TemperatureFigure 6-7 Switching FET RDSON vs. Junction Temperature
TPS923652 TPS923653 TPS923654 TPS923655 ADIM/HD Threshold vs. Junction TemperatureFigure 6-9 ADIM/HD Threshold vs. Junction Temperature
TPS923652 TPS923653 TPS923654 TPS923655 Efficiency at 7V Input Voltage, 1A Output CurrentFigure 6-11 Efficiency at 7V Input Voltage, 1A Output Current
TPS923652 TPS923653 TPS923654 TPS923655 Output Current vs. LED CountFigure 6-2 Output Current vs. LED Count
TPS923652 TPS923653 TPS923654 TPS923655 PWM Duty Cycle vs. CSP-CSN Voltage in 20kHz Hybrid DimmingFigure 6-4 PWM Duty Cycle vs. CSP-CSN Voltage in 20kHz Hybrid Dimming
TPS923652 TPS923653 TPS923654 TPS923655 Internal LDO Output vs. Junction TemperatureFigure 6-6 Internal LDO Output vs. Junction Temperature
TPS923652 TPS923653 TPS923654 TPS923655 VIN UVLO Threshold vs. Junction TemperatureFigure 6-8 VIN UVLO Threshold vs. Junction Temperature
TPS923652 TPS923653 TPS923654 TPS923655 EN/PWM Threshold vs. Junction TemperatureFigure 6-10 EN/PWM Threshold vs. Junction Temperature
TPS923652 TPS923653 TPS923654 TPS923655 Efficiency at 13V Input Voltage, 1A Output CurrentFigure 6-12 Efficiency at 13V Input Voltage, 1A Output Current