JAJSHH1B May   2019  – August 2020 LP5009 , LP5012

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Characteristics
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 PWM Control for Each Channel
        1. 8.3.1.1 Independent Color Mixing Per RGB LED Module
        2. 8.3.1.2 Independent Intensity Control Per RGB LED Module
          1. 8.3.1.2.1 Intensity-Control Register Configuration
          2. 8.3.1.2.2 Logarithmic- or Linear-Scale Intensity Control
        3. 8.3.1.3 12-Bit, 29-kHz PWM Generator Per Channel
          1. 8.3.1.3.1 PWM Generator
        4. 8.3.1.4 PWM Phase-Shifting
      2. 8.3.2 LED Bank Control
      3. 8.3.3 Current Range Setting
      4. 8.3.4 Automatic Power-Save Mode
      5. 8.3.5 Protection Features
        1. 8.3.5.1 Thermal Shutdown
        2. 8.3.5.2 UVLO
    4. 8.4 Device Functional Modes
    5. 8.5 Programming
      1. 8.5.1 I2C Interface
        1. 8.5.1.1 Data Validity
        2. 8.5.1.2 Start and Stop Conditions
        3. 8.5.1.3 Transferring Data
        4. 8.5.1.4 I2C Slave Addressing
        5. 8.5.1.5 Control-Register Write Cycle
        6. 8.5.1.6 Control-Register Read Cycle
        7. 8.5.1.7 Auto-Increment Feature
    6. 8.6 Register Maps
      1.      45
      2. 8.6.1  DEVICE_CONFIG0 (Address = 0h) [reset = 0h]
      3. 8.6.2  DEVICE_CONFIG1 (Address = 1h) [reset = 3Ch]
      4. 8.6.3  LED_CONFIG0 (Address = 2h) [reset = 00h]
      5. 8.6.4  BANK_BRIGHTNESS (Address = 3h) [reset = FFh]
      6. 8.6.5  BANK_A_COLOR (Address = 4h) [reset = 00h]
      7. 8.6.6  BANK_B_COLOR (Address = 5h) [reset = 00h]
      8. 8.6.7  BANK_C_COLOR (Address = 6h) [reset = 00h]
      9. 8.6.8  LED0_BRIGHTNESS (Address = 7h) [reset = FFh]
      10. 8.6.9  LED1_BRIGHTNESS (Address = 8h) [reset = FFh]
      11. 8.6.10 LED2_BRIGHTNESS (Address = 9h) [reset = FFh]
      12. 8.6.11 LED3_BRIGHTNESS (Address = 0Ah) [reset = FFh]
      13. 8.6.12 OUT0_COLOR (Address = 0Bh) [reset = 00h]
      14. 8.6.13 OUT1_COLOR (Address = 0Ch) [reset = 00h]
      15. 8.6.14 OUT2_COLOR (Address = 0Dh) [reset = 00h]
      16. 8.6.15 OUT3_COLOR (Address = 0Eh) [reset = 00h]
      17. 8.6.16 OUT4_COLOR (Address = 0Fh) [reset = 00h]
      18. 8.6.17 OUT5_COLOR (Address = 10h) [reset = 00h]
      19. 8.6.18 OUT6_COLOR (Address = 11h) [reset = 00h]
      20. 8.6.19 OUT7_COLOR (Address = 12h) [reset = 00h]
      21. 8.6.20 OUT8_COLOR (Address = 13h) [reset = 00h]
      22. 8.6.21 OUT9_COLOR (Address = 14h) [reset = 00h]
      23. 8.6.22 OUT10_COLOR (Address = 15h) [reset = 00h]
      24. 8.6.23 OUT11_COLOR (Address = 16h) [reset = 00h]
      25. 8.6.24 RESET (Address = 17h) [reset = 00h]
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Examples
  12. 12Device and Documentation Support
    1. 12.1 Related Links
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 サポート・リソース
    4. 12.4 Trademarks
    5. 12.5 静電気放電に関する注意事項
    6. 12.6 用語集
  13. 13Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

5 Description (continued)

The LP50xx device controls each LED output with a 12-bit PWM resolution at 29-kHz switching frequency, which helps achieve a smooth dimming effect and eliminates audible noise. The independent color mixing and intensity control registers make the software coding straightforward. When targeting a fade-in, fade-out type breathing effect, the global R, G, B bank control reduces the microcontroller loading significantly. The LP50xx device also implements a PWM phase-shifting function to help reduce the input power budget when LEDs turn on simultaneously.

The LP50xx device implements an automatic power-saving mode to achieve ultra-low quiescent current. When channels are all off for 30 ms, the device total power consumption is down to 10 µA, which makes the LP50xx device a potential choice for battery-powered end equipment.