Texas Instruments LP8866EVM, Руководство пользователя, Страница: 2 / 22

Introduction
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2 SNVU685A – December 2019 – Revised June 2020
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LP8866EVM User's Guide
1 Introduction
The LP8866EVM helps designers to evaluate the characteristics, operation, and use of the LP8866-Q1
device, a high-performance LED driver for automotive lighting. The LP8866-Q1 device is a high-efficiency
LED driver with boost controller. The six 200-mA high-precision current sinks support phase shifting that is
automatically adjusted based on the number of channels in use. LED brightness can be controlled globally
through the I²C interface or PWM input.
1.1 Features
The EVM has the following features:
• Up to 48-V Vout boost controller
• Six high-precision current sinks
• Supports built-in phase-shift PWM dimming, hybrid dimming, current dimming and direct PWM
dimming mode
• LED brightness controlled globally through I2C interface or PWM input
• Extensive fault diagnostics
1.2 Applications
Backlight for:
• Automotive infotainment
• Automotive instrument clusters
• Smart mirrors
• Heads-Up Displays (HUD)
• Central Information Displays (CID)
• Audio-Video Navigation (AVN)
2 Test Setup
This section describes how to properly connect and setup the LP8866EVM.
2.1 The LP8866EVM Kit
The LP8866EVM kit contains (see Figure 1 ):
• USB2ANY
– Ribbon cable
– USB cable
• LP8866EVM
• LP886X-LEDLOAD-EVM