TLD5190QVXUMA1

Overview

The TLD5190QVXUMA1 is a single-channel LED driver IC from Infineon’s LITIX Power family, designed for automotive applications. It integrates a DC-DC controller supporting both buck and boost topologies with an operating frequency range of 200 kHz to 700 kHz. The device handles a maximum supply voltage of 40 V and delivers up to 90 mA output current at voltages reaching 55 V. Operating within a junction temperature range of -40°C to +150°C, it features analog and PWM dimming capabilities. Packaged in a PG-VQFN-48-31 format, it meets AEC-Q100 automotive qualification standards.

Feature Summary

• Supports synchronous H-bridge topology for flexible buck and boost LED driving configurations
• Enables precise light control through integrated analog and pulse-width modulation dimming functions
• Includes diagnostic features such as open LED protection for system reliability

Applications

• Automotive exterior lighting systems including headlamps and daytime running lights
• Interior vehicle illumination modules requiring constant current regulation
• Evaluation of 12V automotive LED synchronous H-bridge circuits using demo boards

Procurement Notes

Verify the complete part number suffix to ensure correct packaging configuration, as options include tape-and-reel or cut-tape formats. Confirm that the specific revision matches your design requirements, particularly regarding the PG-VQFN-48-31 package dimensions. Cross-reference the datasheet version to validate electrical characteristics against your application's thermal and voltage constraints before finalizing procurement.

Selection Notes

Select this component when a single-channel solution with high efficiency is required for automotive LED loads. The integrated DC-DC controller simplifies design by reducing external component count compared to discrete solutions. Consider the wide input voltage range and robust thermal performance if operating in harsh automotive environments. Ensure compatibility with existing microcontroller interfaces for PWM dimming signals.

Part Context

This device belongs to the LITIX Power series, specialized for high-performance LED control in vehicles. It complements other variants like the TLD5190QU, which offers a different package option. The series focuses on integrating power stages with sophisticated control logic to meet stringent automotive safety and reliability standards while maintaining compact form factors.

Replacement Considerations

The TLD55411QVXUMA1 is documented as a substitute option within the same manufacturer portfolio. Verify pinout compatibility and electrical specifications before swapping, as feature sets may differ between these specific model numbers despite shared family characteristics.

FAQ

What types of dimming does the TLD5190QVXUMA1 support?

The IC supports both analog and pulse-width modulation (PWM) dimming methods for controlling LED brightness.

Is the TLD5190QVXUMA1 suitable for automotive use?

Yes, it is qualified according to the AEC-Q100 standard and operates within the specified automotive temperature ranges.