Automotive SEPIC Backlight Driver Reference Design TIDA-00503 (ACTIVE)

Description & Features

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Key Document

Description

The TIDA-00503 refrence design is a SEPIC mode LED driver design for automotive backlight applications with 2 or 3 LEDs in series. SEPIC enables VIN both above and below VOUT. The LED driver operates at a switching frequency of 2.2MHz for a small overall footprint and all components are limited to <3mm in height.

Features
  • Wide VIN range 4.5-40V
  • Dimming ratio 10000:1 @ 200Hz PWM
  • Small solution size enabled by 2.2 MHz operation
  • Flexible support for different LED configurations
  • EMI mitigation with optional spread spectrum and external sync

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Schematic/Block Diagram

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Design Guide

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Design Files

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LP8861-Q1  Low-EMI High-Performance 4-Channel LED Driver for Automotive Lighting  LED drivers  Sample & Buy View Design Kits & Evaluation Modules
TLVH431A  1% accuracy low-voltage wide-operating current adjustable precision shunt regulator  Voltage references  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TLVH431A Download Download
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Download -
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 142 08 Oct 2015
Design files (6)
Title Type Size (KB) Date
ZIP 249 08 Oct 2015
ZIP 1491 08 Oct 2015
PDF 409 08 Oct 2015
PDF 97 08 Oct 2015
PDF 75 08 Oct 2015
ZIP 278 08 Oct 2015
More literature (1)
Title Type Size (KB) Date
PDF 1357 08 Oct 2015

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