LITIX™ - Automotive LED Driver IC

Overview

Tailor-made LED driver ICs for automotive lighting ICs applications.

LITIX™ - Automotive LED Driver IC subcategories

LITIX™ is the best solution to benefit from the advantages of LEDs providing full protection to your lighting application in automotive, e.g. for LED Front Lighting or LED Rear Lighting. A constant current regulation is the enabler for stable brightness over the whole automotive temperature and voltage range. LITIX™ will protect itself and the LED against overstress caused by e.g. voltage spikes or overtemperature. Some members of the LITIX™ Family provide diagnostic functionality of open and shorted LED as well. All these features are required to drive LEDs inside a car with harsh automotive conditions. 

LITIX™ Automotive LED driver from Infineon consists of five sub-families:

  • LITIX™ Basic is a flexible linear current source family with scalable feature set 
  • LITIX™ Basic+ is an extension of existing LITIX™ Basic with additional features, e.g. the most flexible Single LED Short in the market
  • LITIX™ Linear provide linear current sources for low, medium and low-cost high-power applications
  • LITIX™ Power products are suited for DC-DC converter and controller for medium to high-power applications
  • LITIX™ Power Flex products are suited for multitopology DC-DC controller for highest flexibility/ power applications

Infineon Technologies is supporting the LED rear light success story with several generations of LED drivers: LITIX™ Linear, LITIX™ Basic and LITIX™ Basic+. To find your suitable product for your LED front lighting  solution, discover Infineon´s LITIX™ Power and LITIX™ Power Flex families. 

Products
Highlights
Solution-Finder
Reference design for high beam and low beam combination using TLD5099EP
LITIX reference design block diagram

Infineon offers a reference design for high beam and low beam combination, using the TLD5099EP. This Infineon Reference Design Guide describes a detailed implementation of an automotive frontlight high beam / low beam combination using the flexible multitopoly DC-DC controller TLD5099EP of the LITIX™ Power family in current controlled buck-boost SEPIC configuration.

Interested? 

Infineon automotive-optimized LED drivers address interior and exterior, low-power to high-power automotive LED applications such as: high and low beam, fog, DRL, position, tail, stop, CHMSL, RCL, reverse, turn indicator, dome, ambient lighting, status lamps etc.

For resistor-based LED taillight designs the SPIDER+ LED family offers cost-optimized LED control either on a central BCM or on decentralized electronics. The included diagnostic and protection functions enable the use of the smallest possible wire diameter

It also includes an integrated pulse width modulator to easily implement a dimming function with reduced color shifting and a spread spectrum modulator to improve the EMI performance. It is designed to support fixed current and fixed voltage configurations in multiple topologies such as Boost, Buck, Buck-Boost, SEPIC and Flyback by simply adjusting the external components. The TLD5099EP drives a low side n-channel power MOSFET from an internal 5 V linear regulator.

Read more on the product page.

The H-Bridge architecture is among the most efficient buck-boost topology for high current applications. The device can work in current mode (E.G. LED driver, battery charger) or as a voltage regulator. Capable to drive multiple LED functions (E.G. LB, HB, DRL) with a single DC-DC converter for a more compact and efficient design.

Read more on the product page.

Tools & Software

Infineon tools in one place
The Infineon Toolbox integrates helpful software to support our customers and reduce their design-in efforts.
Dimensioning tools as well as other software for LITIX™ products and more are available in the Infineon Toolbox
Infineon Toolbox can be downloaded here: Download Infineon Toolbox

 

Tool Devices Description

Single LED Short Dimensioning

Single_LED_Short_dimensioning_tool 

 The Single LED Short dimensioning tool evaluates the performance of LITIX™ Basic+ TLD2132-1EP, TLD2131-3EP and TLD2331-3EP single LED short (SLS) diagnosis

Power Shift Dimensioning

Power_Shift_dimensioning_tool 

    

The Power Shift dimensioning tool calculates the external resistors needed for the Power Shift feature of LITIX™ Basic+ TLD1114-1EP

 

Videos

Infineon LITIX™ Basic LED Drivers Family for an optimized automotive rear light solution

Infineon’s Basic LED drivers are optimized for the control of low to medium power LEDs in automotive applications. The whole family of linear constant current sources offers footprint compatibility ranging from 1 to 3 output channels with typ. 60-180mA and enables stable and reliable LED brightness by precise current control.

Training
Infineon banner led driver training

Infineon's solutions for automotive applications: Rear LED lighting

  • Understand the different LED driving concepts
  • Get to know the Infineon solutions regarding automotive rear LED lighting
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.

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