SNVSCC9C November   2023  – February 2025 LP5812

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  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 Timing Requirements
    7. 6.7 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 Time-Cross-Multiplexing (TCM) Scheme
        1. 7.3.1.1 Direct drive mode
        2. 7.3.1.2 TCM Drive Mode
        3. 7.3.1.3 Mix drive mode
        4. 7.3.1.4 Ghosting Elimination
      2. 7.3.2 Analog Dimming
      3. 7.3.3 PWM Dimming
      4. 7.3.4 Autonomous Animation Engine Control
        1. 7.3.4.1 Animation Engine Pattern
        2. 7.3.4.2 Sloper
        3. 7.3.4.3 Animation Engine Unit (AEU)
        4. 7.3.4.4 Animation Pause Unit (APU)
      5. 7.3.5 Protections and Diagnostics
        1. 7.3.5.1 LED Open Detections
        2. 7.3.5.2 LED Short Detections
        3. 7.3.5.3 Thermal Shutdown
    4. 7.4 Device Functional Modes
    5. 7.5 Programming
    6. 7.6 Register Maps
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Application
      2. 8.2.2 Design Parameters
      3. 8.2.3 Detailed Design Procedure
        1. 8.2.3.1 Input Capacitor Selection
        2. 8.2.3.2 Program Procedure
        3. 8.2.3.3 Programming Example
      4. 8.2.4 Application Performance Plots
    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 Documentation 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

8.2.4 Application Performance Plots

The following figures show the application performance plots.

LP5812 Scan Lines and Current Sinks Waveforms of OUT0, OUT1, OUT2, OUT3

PWM frequency = 24kHz

 LED_A0/A1/A2 enable

led_mode = 4h
Figure 8-3 Scan Lines and Current Sinks Waveforms of OUT0, OUT1, OUT2, OUT3
LP5812 Scan Lines Switching Waveforms of OUT0, OUT1, OUT2, OUT3
Switch blank time tSW_BLK = 1μs
Figure 8-5 Scan Lines Switching Waveforms of OUT0, OUT1, OUT2, OUT3
LP5812 PWM Alignment Disabled
phase_align_a0 = 0h, phase_align_a1 = 0h, phase_align_a2 = 0h, PWM = 127
Figure 8-7 PWM Alignment Disabled
LP5812 Scan Lines and Current Sinks Waveforms of OUT0, OUT1, OUT2, OUT3
PWM frequency = 12kHz LED_A0/A1/A2 enable

led_mode = 4h
Figure 8-4 Scan Lines and Current Sinks Waveforms of OUT0, OUT1, OUT2, OUT3
LP5812 Scan Lines Switching Waveforms of OUT0, OUT1, OUT2, OUT3
Switch blank time tSW_BLK = 2μs
Figure 8-6 Scan Lines Switching Waveforms of OUT0, OUT1, OUT2, OUT3
LP5812 PWM Alignment Enabled
phase_align_a0 = 1h, phase_align_a1 = 2h, phase_align_a2 = 3h, PWM = 127
Figure 8-8 PWM Alignment Enabled