SNVS901A March   2014  – May 2014 TPS92511

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Handling Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Pulse Level Modulation (PLM) Control
      2. 7.3.2  Pulse Level Modulation (PLM) Operaion Principles
      3. 7.3.3  PLM Control enable Common-Anode Low-Side Sensing (CALS)Technique to Save Wiring
      4. 7.3.4  Internal Regulator
      5. 7.3.5  Setting The Switching Frequency
      6. 7.3.6  Setting The LED Current
      7. 7.3.7  Integrated MOSFET
      8. 7.3.8  Inductor Selection
      9. 7.3.9  Integrated MOSFET Current Limit
      10. 7.3.10 PWM Dimming Control
      11. 7.3.11 Analog Dimming
      12. 7.3.12 High Voltage Buck Configuration
      13. 7.3.13 Thermal Foldback
      14. 7.3.14 EMI Consideration
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation with VIN < 4.5 V (minimum VIN)
      2. 7.4.2 Operation with DIM control
      3. 7.4.3 Linear Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 TPS92511 LED driver for 12 LEDs at 0.5A
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
  9. 9 Power Supply Recommendation
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
      1. 10.2.1 Thermal Consideration
  11. 11Device and Documentation Support
    1. 11.1 Trademarks
    2. 11.2 Electrostatic Discharge Caution
    3. 11.3 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

9 Power Supply Recommendation

This device is designed to operate from an input voltage supply range between 4.5 V and 65 V. The input supply should be well regulated. If the input supply is located more than a few inches from the TPS92511 application board, additional bulk capacitance may be required in addition to the input capacitor. A ceramic capacitor with a value of 2.2 μF is a typical choice.