SLDU040A November   2022  – August 2024 LP5891

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Function Descriptions
    2. 2.2 Test Setup
      1. 2.2.1 System/Tool Requirements
      2. 2.2.2 Hardware Setup for Single Device
      3. 2.2.3 Hardware Setup for Dual Cascaded Devices
  8. 3Software
    1. 3.1 Software Setup
  9. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  10. 5Additional Information
    1. 5.1 Additional Resources
    2. 5.2 Trademarks
  11. 6Revision History

1.1 Introduction

The LP5891 is a highly integrated, common cathode matrix LED display driver with 48 constant current sources and 16 scanning FETs. One LP5891 is capable of driving 16 × 16 RGB LED pixels, while stacking two LP5891 can drive 32 × 32 RGB LED pixels, three LP5891 are capable of driving 48 × 48 RGB LED pixels, and stacking four LP5891 can drive 64 × 64 RGB LED pixels, which simplifies component placement and control. With the common cathode structure, the device supports separated power supplies for the red, green, and blue LEDs to achieve low power consumption. Furthermore, the operation power of the LP5891 is significantly reduced by ultra-low operation voltage range (Vcc down to 2.5V) and ultra-low operation current (Icc down to 3.6mA).

This user’s guide describes the LP5891 evaluation module used as a reference for engineering demonstration and evaluation. Included in this user’s guide are setup instructions, a schematic diagram, printed board (PCB) layout, and a bill of materials (BOM).