ZHCSO29 July   2021 LP5890

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. 说明(续)
  6. Pin Configuration and Functions
  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 Requirements
    7. 7.7 Switching Characteristics
    8. 7.8 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Independent and Stackable Mode
        1. 8.3.1.1 Independent Mode
        2. 8.3.1.2 Stackable Mode
      2. 8.3.2 Current Setting
        1. 8.3.2.1 Brightness Control (BC) Function
        2. 8.3.2.2 Color Brightness Control (CC) Function
        3. 8.3.2.3 Choosing BC/CC for a Different Application
      3. 8.3.3 Frequency Multiplier
      4. 8.3.4 Line Transitioning Sequence
      5. 8.3.5 Protections and Diagnostics
        1. 8.3.5.1 Thermal Shutdown Protection
        2. 8.3.5.2 IREF Resistor Short Protection
        3. 8.3.5.3 LED Open Load Detection and Removal
          1. 8.3.5.3.1 LED Open Detection
          2. 8.3.5.3.2 Read LED Open Information
          3. 8.3.5.3.3 LED Open Caterpillar Removal
        4. 8.3.5.4 LED Short and Weak Short Circuitry Detection and Removal
          1. 8.3.5.4.1 LED Short and Weak Short Detection
          2. 8.3.5.4.2 Read LED Short Information
          3. 8.3.5.4.3 LSD Caterpillar Removal
    4. 8.4 Device Functional Modes
    5. 8.5 Continuous Clock Series Interface
      1. 8.5.1 Data Validity
      2. 8.5.2 CCSI Frame Format
      3. 8.5.3 Write Command
        1. 8.5.3.1 Chip Index Write Command
        2. 8.5.3.2 VSYNC Write Command
        3. 8.5.3.3 Soft_Reset Command
        4. 8.5.3.4 Data Write Command
      4. 8.5.4 Read Command
    6. 8.6 PWM Grayscale Control
      1. 8.6.1 Grayscale Data Storage and Display
        1. 8.6.1.1 Memory Structure Overview
        2. 8.6.1.2 Details of Memory Bank
        3. 8.6.1.3 Write a Frame Data into Memory Bank
      2. 8.6.2 PWM Control for Display
    7. 8.7 Register Maps
      1. 8.7.1  FC0
      2. 8.7.2  FC1
      3. 8.7.3  FC2
      4. 8.7.4  FC3
      5. 8.7.5  FC4
      6. 8.7.6  FC10
      7. 8.7.7  FC11
      8. 8.7.8  FC12
      9. 8.7.9  FC13
      10. 8.7.10 FC14
      11. 8.7.11 FC15
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
        1. 9.2.1.1 System Structure
        2. 9.2.1.2 SCLK Frequency
        3. 9.2.1.3 Internal GCLK Frequency
        4. 9.2.1.4 Line Switch Time
        5. 9.2.1.5 Blank Time Removal
        6. 9.2.1.6 BC and CC
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Chip Index Command
        2. 9.2.2.2 FC Registers Settings
        3. 9.2.2.3 Grayscale Data Write
        4. 9.2.2.4 VSYNC Command
        5. 9.2.2.5 LED Open and Short Read
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 接收文档更新通知
    2. 12.2 支持资源
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 术语表
  13. 13Mechanical, Packaging, and Orderable Information

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机械数据 (封装 | 引脚)
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订购信息

特性

  • 支持分立式 VCC 和 VR/G/B 电源
    • VCC 电压范围:2.5V 至 5.5V
    • VR/G/B 电压范围:2.5V 至 5.5V
  • 48 个电流源通道,范围为 0.2mA 至 20mA
    • 通道间精度:±0.5%(典型值),±2%(最大值);器件间精度:±0.5%(典型值),±2%(最大值)
    • 低膝点电压:当 IOUT = 5mA 时为 0.26V(最大值)
    • 3 位(8 级)全局亮度控制
    • 8 位(256 级)色彩亮度控制
    • 最大 16 位(65536 级)PWM 灰度控制
  • 带 190mΩ RDS(ON) 的 16 个扫描线开关
  • 超低功耗
    • 低至 2.5V 的独立 VCC
    • 超低 ICC(低至 3.9mA),具有 50MHz GCLK
    • 智能省电模式
  • 内置 SRAM 支持 1 至 32 路复用
    • 单个器件可驱动多达 16 × 48 个 LED 或 16 × 16 个 RGB LED
    • 两个器件堆叠后可驱动多达 32 × 96 个 LED 或 32 × 32 个 RGB LED
  • 高速和低 EMI 连续时钟串行接口 (CCSI)
    • 仅三条线:SCLK/SIN/SOUT
    • 外部 50MHz(最大值)SCLK
    • 支持 40MHz 至 160MHz 范围 GCLK 的内部倍频器
  • 经优化的显示性能
    • 去除上下重影
    • 低灰度增强
    • 检测和消除 LED 开路、短路和弱短路