LITIX™ Power Flex

综述

LED光源在汽车前端照明中有着广泛的应用。LED节能环保且元件体积小，便于布置造型，有利于实现多种新颖的车灯设计，如LED矩阵和激光远光灯等。这样的设计趋势要求相应DC/DC驱动器高度灵活，以高效驱动功率高达50W（或电流大于3A）的LED系统。英飞凌现已推出全新的多拓扑结构DC/DC控制器LITIX™ Power Flex。作为该系列的首款产品，TLD5541-1QV采用同步DC/DC H桥拓扑结构，能以超过90%的系统能效驱动大功率LED，而且只需极少的外围器件。该器件优化了扩频开关频率，因而降低了电磁辐射。另外，得益于无缝升降压调节和快速动态负载跳变，仅用一片TLD5541-1QV驱动两三个甚至多个独立开关的LED负载便能实现低成本且带完整保护诊断功能的LED车灯设计，同时最高支持55V的串联电压。

产品
周边/配套产品
Block diagram: TLD5541-1QV
Block diagram: TLD5541-1QV

The image shows an application diagram of the TLD5541-1QV synchronous H-bridge controller with SPI.

软件和工具

Infineon tools in one place
The Infineon Toolbox integrates helpful software for our customers. For product development please use the Config Wizard for LED.
Infineon Toolbox can be downloaded here: Download Infineon Toolbox

Tool Devices Description

Config Wizard

  
  • TLD5501-2QV
  • TLD5542-1QV

Easily configure LITIXTM Power Flex devices.

A user guide can be found in the user manual  of the board TLD5542-1IVREG-EVAL

 

培训
LITIX™ solutions for automotive rear lighting architectures

Infineon’s LITIX™ solutions for automotive rear lighting architectures (S/E1)

  • Recognize Infineon’s set of LED driver families for automotive rear lighting
  • Apply Infineon’s chip-set in a conventional rear lighting architecture and its extension for dynamic effects

Introduction to two-wheeler headlamp applications

The micro learning is an introduction to LITIX™ power devices for two-wheeler headlamp applications. It explains the two-wheeler market concept and shows the different motorcycle applications. In addition, it explains the key features of the three main segments and how the motorcycle LED headlamps work.

LITIX™ DC-DC controllers for two-wheeler headlamp application

The micro learning shows the LITIX™ power family devices for motorcycle applications. The LITIX™ power family provides easy-to-use devices available for headlamp and the training explains why they are the best-fit solution for each of the segments.

Driving high and low beam with only one DC-DC controller

The micro learning shows the key features of only using a single DC-DC controller in order to achieve the desired light function. It also shows how to lower costs and have less components, among other improvements, with the same current for both LED strings. In addition, it explains how the system manages the three light functions with just two switches.

TLD509xEP for two-wheeler market

This micro learning explains how TLD509xEP is the LITIX™ solution for headlamp applications for the entry level segment of the two-wheeler market. In addition, it explains the range of topologies that fulfills the load requirements and the best-fit features for headlamp applications.

Improving efficiency with H-bridge topology

The micro learning shows how H-bridge topology improves efficiency and its key benefits. In addition, it explains how TLD5190Qx achieves the best performance.

应用
支持