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Texas Instruments LM3481MM | Demoboard TIDA-01234

24W Boost and Boost-to-Battery Reference Design for Automotive LED Lighting

Overview

TopologyBoost Converter
Input voltage6-18 V
Output 112 V / 1 A
Output 224 V / 1 A
IC revisionE1

Description

TIDA-01234 is a 24W, high-efficiency (94%), low cost, Asynchronous boost design for automotive LED application based on LM3481-Q1. This design applies to automotive high brightness lighting such as headlights and taillights and also interior LED lighting systems. It is designed to operate with an input range from 6Vin to 18Vin and can drive multiple strings of 6 to 7 LEDS (16V to 24V) in series at 1A constant current. The design support analog LED brightness control and output open protection. In Boost-to-Battery configuration, input voltage can either be higher, lower or equal to required LED strings voltage

Features

  • 24W Automotive LED Driver Solution
  • 94% System efficiency @full load at 12Vin for Boost; 88.9% System efficiency @full load at 12Vin for Boost to Battery
  • Open Circuit Protection
  • Switching Frequency: 350kHz

Typical applications

  • SMPS for Automotive LED Lighting

More information

Products

Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
fres
(MHz)
Material Samples
7443551111SPEC
8 files WE-HCI SMT Flat Wire High Current Inductor 11.3 13.1 4 9.5 9.1 12 WE-PERM
Order Code Data­sheet Simu­lation
7443551111SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
fres
(MHz)
Material Samples