ZHCSHV7C October   2018  – July 2024 LP5018 , LP5024

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 说明（续）
  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 PWM Control for Each Channel
        1. 7.3.1.1 Independent Color Mixing Per RGB LED Module
        2. 7.3.1.2 Independent Intensity Control Per RGB LED Module
          1. 7.3.1.2.1 Intensity-Control Register Configuration
          2. 7.3.1.2.2 Logarithmic- or Linear-Scale Intensity Control
        3. 7.3.1.3 12-Bit, 29-kHz PWM Generator Per Channel
          1. 7.3.1.3.1 PWM Generator
        4. 7.3.1.4 PWM Phase-Shifting
      2. 7.3.2 LED Bank Control
      3. 7.3.3 Current Range Setting
      4. 7.3.4 Automatic Power-Save Mode
      5. 7.3.5 Protection Features
        1. 7.3.5.1 Thermal Shutdown
        2. 7.3.5.2 UVLO
    4. 7.4 Device Functional Modes
    5. 7.5 Programming
      1. 7.5.1 I2C Interface
        1. 7.5.1.1 Data Validity
        2. 7.5.1.2 Start and Stop Conditions
        3. 7.5.1.3 Transferring Data
        4. 7.5.1.4 I2C Slave Addressing
        5. 7.5.1.5 Control-Register Write Cycle
        6. 7.5.1.6 Control-Register Read Cycle
        7. 7.5.1.7 Auto-Increment Feature
    6. 7.6 Register Maps
      1. 7.6.1  DEVICE_CONFIG0 (Address = 0h) [reset = 0h]
      2. 7.6.2  DEVICE_CONFIG1 (Address = 1h) [reset = 3Ch]
      3. 7.6.3  LED_CONFIG0 (Address = 2h) [reset = 00h]
      4. 7.6.4  BANK_BRIGHTNESS (Address = 3h) [reset = FFh]
      5. 7.6.5  BANK_A_COLOR (Address = 4h) [reset = 00h]
      6. 7.6.6  BANK_B_COLOR (Address = 5h) [reset = 00h]
      7. 7.6.7  BANK_C_COLOR (Address = 6h) [reset = 00h]
      8. 7.6.8  LED0_BRIGHTNESS (Address = 7h) [reset = FFh]
      9. 7.6.9  LED1_BRIGHTNESS (Address = 8h) [reset = FFh]
      10. 7.6.10 LED2_BRIGHTNESS (Address = 9h) [reset = FFh]
      11. 7.6.11 LED3_BRIGHTNESS (Address = 0Ah) [reset = FFh]
      12. 7.6.12 LED4_BRIGHTNESS (Address = 0Bh) [reset = FFh]
      13. 7.6.13 LED5_BRIGHTNESS (Address = 0Ch) [reset = FFh]
      14. 7.6.14 LED6_BRIGHTNESS (Address = 0Dh) [reset = FFh]
      15. 7.6.15 LED7_BRIGHTNESS (Address = 0Eh) [reset = FFh]
      16. 7.6.16 OUT0_COLOR (Address = 0Fh) [reset = 00h]
      17. 7.6.17 OUT1_COLOR (Address = 10h) [reset = 00h]
      18. 7.6.18 OUT2_COLOR (Address = 11h) [reset = 00h]
      19. 7.6.19 OUT3_COLOR (Address = 12h) [reset = 00h]
      20. 7.6.20 OUT4_COLOR (Address = 13h) [reset = 00h]
      21. 7.6.21 OUT5_COLOR (Address = 14h) [reset = 00h]
      22. 7.6.22 OUT6_COLOR (Address = 15h) [reset = 00h]
      23. 7.6.23 OUT7_COLOR (Address = 16h) [reset = 00h]
      24. 7.6.24 OUT8_COLOR (Address = 17h) [reset = 00h]
      25. 7.6.25 OUT9_COLOR (Address = 18h) [reset = 00h]
      26. 7.6.26 OUT10_COLOR (Address = 19h) [reset = 00h]
      27. 7.6.27 OUT11_COLOR (Address = 1Ah) [reset = 00h]
      28. 7.6.28 OUT12_COLOR (Address = 1Bh) [reset = 00h]
      29. 7.6.29 OUT13_COLOR (Address = 1Ch) [reset = 00h]
      30. 7.6.30 OUT14_COLOR (Address = 1Dh) [reset = 00h]
      31. 7.6.31 OUT15_COLOR (Address = 1Eh) [reset = 00h]
      32. 7.6.32 OUT16_COLOR (Address = 1Fh) [reset = 00h]
      33. 7.6.33 OUT17_COLOR (Address = 20h) [reset = 00h]
      34. 7.6.34 OUT18_COLOR (Address = 21h) [reset = 00h]
      35. 7.6.35 OUT19_COLOR (Address = 22h) [reset = 00h]
      36. 7.6.36 OUT20_COLOR (Address = 23h) [reset = 00h]
      37. 7.6.37 OUT21_COLOR (Address = 24h) [reset = 00h]
      38. 7.6.38 OUT22_COLOR (Address = 25h) [reset = 00h]
      39. 7.6.39 OUT23_COLOR (Address = 26h) [reset = 00h]
      40. 7.6.40 RESET (Address = 27h) [reset = 00h]
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Examples
  10. 9 Device and Documentation Support
    1. 9.1 Related Links
    2. 9.2 接收文档更新通知
    3. 9.3 支持资源
    4. 9.4 Trademarks
    5. 9.5 静电放电警告
    6. 9.6 术语表
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

1 特性

  • 工作电压范围：
    • VCC 范围：2.7V 至 5.5V
    • EN、SDA 和 SCL 引脚，
      兼容 1.8V、3.3V 和 5V 电源轨
    • 最大输出电压：6V
  • 24 个高精度恒定电流阱
    • 在整个 VCC 范围内，每个通道的最大电流为 25.5mA
    • 当 VCC ≥ 3.3V 时，每个通道的最大电流为 35mA
    • 器件间误差：±7%；通道间误差：±7%
  • 超低静态电流：
    • 关断模式：1µA（最大值），EN 处于低电平
    • 省电模式：10µA（典型值），EN 处于高电平，且所有 LED 均在超过 30ms 后关闭
  • 每个通道都具有集成式 12 位、29kHz PWM 发生器：
    • 每个通道都具有独立的色彩混合寄存器
    • 每个 RGB LED 模块都具有独立的亮度控制寄存器
    • 可选的对数或线性标度亮度控制
    • 集成三相 PWM 相移方案
  • 3 个可编程组（R、G、B），可轻松对每种颜色进行软件控制
  • 2 个外部硬件地址引脚允许连接多达 4 个器件
  • 广播从地址允许同时配置多个器件
  • 自动递增允许在一次传输期间写入或读取多个连续的寄存器
  • 高达 400kHz 的快速模式 I2C 速度
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