TLD55411QUXUMA1

Overview

The TLD55411QUXUMA1 is a single-channel LED lighting driver IC from Infineon’s LITIX family, designed for automotive applications. It integrates a synchronous MOSFET H-bridge DC-DC controller supporting both Buck and Boost topologies. The device operates with an input voltage range of 4.5 V to 40 V and delivers a maximum output current of 90 mA. It supports switching frequencies between 200 kHz and 700 kHz and features analog and PWM dimming capabilities. Packaged in a PG-VQFN-48-31 format, it is qualified to AEC-Q100 standards and functions within a junction temperature range of -40°C to +150°C.

Feature Summary

• Integrates a synchronous MOSFET H-bridge DC-DC controller with built-in protection features
• Supports flexible Buck and Boost converter topologies for various LED configurations
• Enables precise light control through combined analog and PWM dimming interfaces

Applications

• Automotive exterior lighting systems
• LED headlamp modules
• Daytime running light circuits

Procurement Notes

Verify the exact suffix against official Infineon documentation to confirm package type and tape/reel specifications. Confirm AEC-Q100 qualification status for your specific automotive grade requirements. Check for end-of-life notices as some variants may be marked not recommended for new designs. Ensure compatibility with your system's SPI interface if digital control is required.

Selection Notes

Select this component when a single-channel high-current solution with integrated power switches is needed. It is suitable for designs requiring both step-up and step-down voltage conversion capabilities. Consider the 48-pin QFN package for thermal management and space-constrained PCB layouts. Verify that the 90 mA output current meets the specific LED string requirements of the application.

Part Context

This part belongs to the TLD5541x series of LITIX LED drivers, which are specialized for automotive lighting. These devices typically feature robust diagnostic capabilities and communication interfaces like SPI. The series is engineered to meet the stringent reliability and safety standards required by modern vehicle lighting architectures.

Replacement Considerations

TLD5190QVXUMA1 is listed as a parameter-equivalent alternative.