ZHCSQX1A August   2022  – December 2022 LP5891-Q1

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/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 MPSM Write Command
        4. 8.5.3.4 Standby Clear and Enable Command
        5. 8.5.3.5 Soft_Reset Command
        6. 8.5.3.6 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  FC14
      7. 8.7.7  FC15
      8. 8.7.8  FC16
      9. 8.7.9  FC17
      10. 8.7.10 FC18
      11. 8.7.11 FC19
      12. 8.7.12 FC20
      13. 8.7.13 FC21
  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, Short Read
      3. 9.2.3 Application Curves
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 接收文档更新通知
    3. 10.3 支持资源
    4. 10.4 Trademarks
    5. 10.5 静电放电警告
    6. 10.6 术语表
  11. 11Mechanical, Packaging, and Orderable Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • RRF|76
散热焊盘机械数据 (封装 | 引脚)
订购信息

说明(续)

LP5891-Q1 是高度集成的共阴极矩阵 LED 显示驱动器,有 48 个恒流源和 16 个扫描 FET。除了像 LP5890 一样驱动 16 × 16 和 32 × 32 RGB LED 像素,三个 LP5891-Q1 器件还能够驱动 48 × 48 RGB LED 像素,堆叠四个 LP5891-Q1 器件则可以驱动 64 × 64 RGB LED 像素。为实现低功耗,该器件可通过其共阴极结构为红色、绿色和蓝色 LED 提供分立式电源。此外,通过超低的工作电压范围(Vcc 低至 2.5V)和超低的工作电流(Icc 低至 3.6mA),LP5891-Q1 的运行功率可显著降低。

LP5891-Q1 实现了一个高速上升沿传输接口,可支持高器件数菊花链和高刷新率,同时尽可能降低电磁干扰 (EMI)。该器件支持高达 50MHz 的 SCLK(外部)和高达 160MHz 的 GCLK(内部)。同时,该器件集成了增强电路和智能算法,解决了窄像素间距 (NPP) LED 显示应用以及 mini 和 micro-LED 产品中由 LED 开路或短路引起的各种显示难题:第一个扫描线过暗、上下重影、低灰度不均匀、耦合及毛毛虫现象,因此 LP5891-Q1 是此类应用的理想选择。

LP5891-Q1 还可以在运行期间实现 LED 开路/弱短路/短路的检测和消除,并可以将这些信息报告给配套的数字处理器。