SLVUDI5 November   2025

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Test Setup
      1. 2.1.1 System and Equipment Requirements
      2. 2.1.2 Connector Description
      3. 2.1.3 Input and Output Connection
  9. 3Hardware Design Files
    1. 3.1 Schematic
    2. 3.2 Layout
    3. 3.3 Bill of Materials
  10. 4Additional Information
    1. 4.1 Trademarks

1.1 Introduction

The LP8868YQ1EVM provides an LED driver based on the LP8868YQ1 buck-boost switching regulator. The EVM is designed to operate with an input voltage in the range of 4.5V to 65V. The EVM is set up for a default output current of 1A and can work in four configurable dimming options. See also the LP8868-Q1 Automotive Multi-Topology LED Driver with Inductive Fast Dimming data sheet. By applying 0–100% duty cycle PWM signal on ADIM, HD pin, or PWM, EN pin, the device is able to operate in analog dimming or PWM dimming, respectively.

This user’s guide describes the LP8868YQ1EVM evaluation module. This user’s guide is used as a reference for engineering evaluation. Included in this user’s guide are test setup instructions, a schematic diagram, a printed board (PCB) layout, and a bill of materials (BOM).

Observe the following precautions when using the LP8868YQ1EVM.

WARNING: When choosing an LED component (not included with this EVM), users must refer to the LED data sheet supplied by the LED manufacturer to identify the EN62471 Risk Group Rating and review any potential eye hazards associated with the LED chosen. Always consider and implement the use of effective light filtering and darkening protective eyewear and be fully aware of surrounding laboratory-type setups when viewing intense light sources that can be required to minimize or eliminate such risks to avoid accidents related to temporary blindness.
WARNING: All external connections to the hardware must stay within the recommended operating conditions and intended usage for all hardware and components connected in the system