SNVSD24 August   2025 LP5814I

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 Timing Diagrams
    8. 6.8 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 Analog Dimming
      2. 7.3.2 PWM Dimming
      3. 7.3.3 Sloper
      4. 7.3.4 Autonomous Animation Control
        1. 7.3.4.1 Animation Engine Unit
        2. 7.3.4.2 Animation Pattern Unit
        3. 7.3.4.3 Animation Control
      5. 7.3.5 Instant Blinking
      6. 7.3.6 Protections
        1. 7.3.6.1 UVLO
        2. 7.3.6.2 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Initialization Mode
      2. 7.4.2 Instant Blinking Mode
      3. 7.4.3 Standby and Normal Mode
      4. 7.4.4 Shutdown Mode
      5. 7.4.5 Thermal Shutdown Mode
    5. 7.5 Programming
      1. 7.5.1 I2C Data Tansactions
      2. 7.5.2 I2C Data Format
      3. 7.5.3 Command Description
    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 Program Procedure
        2. 8.2.3.2 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
    1. 11.1 Mechanical Data

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7.3.4.2 Animation Pattern Unit

The LP5814I has 4 independent configurable pattern units, PATTERN0, PATTERN1, PATTERN2 and PATTERN3. Every pattern unit has 5 PWM values, 6 time values and 1 play times value.

For PATTERNx (x = 0, 1, 2, 3),

  • The 5 PWM values are stored in PATTERNx_PWM0, PATTERNx_PWM1, PATTERNx_PWM2, PATTERNx_PWM3 and PATTERNx_PWM4. The 8 bits PWM value can be programmed from 0 to 255. Exponential dimming curve can also be supported in the sloper time.
  • The 6 time values are devided into 2 types, pause time and sloper time. There are 2 pause time, PATTERNx_PAUSE_T0 and PATTERNx_PAUSE_T1. 4 sloper time, PATTERNx_SLOPER_T0, PATTERNx_SLOPER_T1, PATTERNx_SLOPER_T2 and PATTERNx_SLOPER_T3. Evey time value can be configured from 0 to 8s with 16 options.
  • The pattern play times value is stored in PATTERNx_PT and can be configued from 0 to infinite times with 16 options. When the PATTERNx_PT = 0, the 2 pause time, output PWM0 for PAUSE_T0 and output PWM4 for PAUSE_T1, are still executed to construct the pattern unit.

Typical breathing effect example is illustrated as shown in Figure 7-5.


LP5814I Animation Pattern Unit - Example 1

Figure 7-5 Animation Pattern Unit - Example 1

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


LP5814I Animation Pattern Unit - Example 2

Figure 7-6 Animation Pattern Unit - Example 2