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TIDA-050002

55-W Dual Buck-Boost LED Driver Reference Design for Automotive High and Low Beam Headlight

Design files

TIDA-050002

Design files

Overview

This reference design describes a TPS92692-Q1 LED driver in a dual, high-beam and low-beam application with a single controller and power stage. The design operates in boost mode to provide the high beam and in boost to battery mode to provide the low beam. The single controller power stage design results in a simpler and more cost-effective lighting system. Additional design flexibility of the TPS92692 device includes analog and PWM dimming support as well as built-in monitoring for fault detection and protection of the continuous LED current. EMI filtering is included and designed to meet CISPR-25, Class 5 conduction requirements.

Features
  • Dual mode: Boost mode for high beam + low beam and boot to battery mode for low beam
  • CISPR-25 Class 3 and Class 5 EMI Solutions
  • Spread spectrum frequency modulation
  • Operation through warm crank and load dump
  • Continuous LED current monitoring output
Output voltage options TIDA-050002.1 TIDA-050002.2
Vin (Min) (V) 16 16
Vin (Max) (V) 8 8
Vout (Nom) (V) 4 44
Iout (Max) (A) 1.25 1.25
Output Power (W) 5 55
Isolated/Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC
Topology Buck Boost- Non Sync Buck Boost- Non Sync
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Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Design guide — TIDA-050002
TIDUEC3.PDF (1406 KB)

Reference design overview and verified performance test data

download Assembly drawing — TIDA-050002
TIDRXH7.PDF (152 KB)

Detailed overview of design layout for component placement

download Bill of materials (BOM) — TIDA-050002
TIDRXG1.PDF (58 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

download Gerber file — TIDA-050002
TIDCEZ3.ZIP (549 KB)

Design file that contains information on physical board layer of design PCB

download PCB layout — TIDA-050002
TIDRXH8.PDF (451 KB)

PCB layer plot file used for generating PCB design layout

download Schematic — TIDA-050002
TIDRXG0.PDF (186 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Automotive LED drivers

TPS92692-Q1 — high-accuracy LED controller with spread spectrum frequency modulation and internal PWM Generator

Data sheet: PDF | HTML
Ideal diode & ORing controllers

LM74700-Q1 — 3.2-V to 65-V, 80-uA IQ automotive ideal diode controller

Data sheet: PDF | HTML

Start development

Hardware development

Evaluation board

TPS92692EVM-880 — TPS92692-Q1 Boost and Boost-to-Battery LED Driver Evaluation Module

This reference design describes a TPS92692-Q1 LED driver in a dual, high-beam and low-beam application with a single controller and power stage. The design operates in boost mode to provide the high beam and in boost to battery mode to provide the low beam. The single controller power stage design (...)
EVM user’s guide: PDF
Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-050002 — 55-W Dual Buck-Boost LED Driver Reference Design for Automotive High and Low Beam Headlight
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TPS92692EVM-880 — TPS92692-Q1 Boost and Boost-to-Battery LED Driver Evaluation Module

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TIDA-050002 — 55-W Dual Buck-Boost LED Driver Reference Design for Automotive High and Low Beam Headlight
TI’s Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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* Design guide 55W Dual Buck-Boost LED Driver Ref Design for Automotive Headlight High/Low Beam May 17, 2018

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