SNVSCD0B November   2023  – September 2024 LP5810

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Timing Requirements
    7. 5.7 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Analog Dimming
      2. 6.3.2 PWM Dimming
      3. 6.3.3 Autonomous Animation Engine Control
        1. 6.3.3.1 Animation Engine Pattern
        2. 6.3.3.2 Sloper
        3. 6.3.3.3 Animation Engine Unit (AEU)
        4. 6.3.3.4 Animation Pause Unit (APU)
      4. 6.3.4 Protections and Diagnostics
        1. 6.3.4.1 LED Open Detections
        2. 6.3.4.2 LED Short Detections
        3. 6.3.4.3 Thermal Shutdown
    4. 6.4 Device Functional Modes
    5. 6.5 Programming
      1. 6.5.1 I2C Data Transactions
      2. 6.5.2 I2C Data Format
  8. 7 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

6.3.3.3 Animation Engine Unit (AEU)

The AEU is the most important unit to achieve autonomous animation effects. One AEU is formed by 4 slopers. There are 5 PWM values and 4 time values can be configured in the AEU. Each PWMx (x = 1, 2,…, 5) can be arbitrarily programmed from 0 to 255, The Tx ( x = 1, 2, 3, 4) is selectable from 0 to 8 s with 16 levels referring to Table 6-3. If two adjacent PWM values are equal, the brightness keeps unchange within the time setting. When a Tx is set to 0, this sloper is skipped. To avoid flicker happens due to PWM value suddenly changes, the begin and end PWM of this sloper need to be the same.

Typical breathing effect example is illustrated as Figure 6-6.

LP5810 Animation engine unit - Example 1 Figure 6-6 Animation engine unit - Example 1

Advanced breathing effect example is shown in Figure 6-7. 2 different fading speeds are set in the PWM rising and falling phases, to achieve a complex animation.

LP5810 Animation engine unit - Example 2 Figure 6-7 Animation engine unit - Example 2