SNVSCC9 November   2023 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
  8. 7 Typical Characteristics
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Time-cross-multiplexing (TCM) scheme
        1. 8.3.1.1 Direct drive mode
        2. 8.3.1.2 TCM drive mode
        3. 8.3.1.3 Mix drive mode
        4. 8.3.1.4 Ghosting elimination
      2. 8.3.2 Analog Dimming
      3. 8.3.3 PWM Dimming
      4. 8.3.4 Autonomous Animation Engine Control
        1. 8.3.4.1 Animation Engine Pattern
        2. 8.3.4.2 Sloper
        3. 8.3.4.3 Animation Engine Unit (AEU)
        4. 8.3.4.4 Animation Pause Unit (APU)
      5. 8.3.5 Protections and Diagnostics
        1. 8.3.5.1 LED Open Detections
        2. 8.3.5.2 LED Short Detections
        3. 8.3.5.3 Thermal Shutdown
    4. 8.4 Device Functional Modes
    5. 8.5 Programming
    6. 8.6 Register Maps
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Application
      2. 9.2.2 Design Parameters
      3. 9.2.3 Detailed Design Procedure
        1. 9.2.3.1 Input Capacitor Selection
        2. 9.2.3.2 Program Procedure
        3. 9.2.3.3 Programming Example
      4. 9.2.4 Application Performance Plots
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
    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

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • YBH|9
  • DSD|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

3 Description

The LP5812 is a 4 × 3 matrix RGB LED driver with autonomous animation engine control. The device has ultra-low normal operation current with 0.4-mA (typical) when illuminate LEDs.

The time-cross-multiplexing (TCM) structure is adopted, which uses 4 output pins to control 12 LED dots individually. Both high-side scan switch and low-side current sink are contained in one output. The total solution size are minimized for space limited system.

The autonomous animation engine can significantly reduce the real-time loading of controller. Each LED can be configured through the related registers to realize vivid and fancy lighting effects. The device can generate 6-MHz clock signal and use it for synchronizing the lighting effects among multiple devices.

Package Information
PART NUMBER PACKAGE(1) BODY SIZE (NOM)
LP5812 DSBGA (9) 1.43 mm × 1.43 mm
WSON (8) 3 mm × 3 mm
(1) Product Preview
GUID-20220630-SS0I-JN0H-3HVB-L3MB0S7Q8NJJ-low.svg Simplified Schematic