TLC5926QPWPRQ1

Overview

The TLC5926QPWPRQ1 is an automotive-grade, 16-channel constant-current LED sink driver manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 5.5 V and supports PWM dimming frequencies up to 30 MHz. The device delivers a maximum output current of 60 mA per channel with high accuracy. It features thermal shutdown protection and is housed in a 28-pin HTSSOP package. Certified under AEC-Q100 standards, it ensures reliability for demanding automotive environments.

Feature Summary

• Provides 16 independent channels for precise constant-current LED sinking
• Supports high-frequency PWM dimming for flicker-free brightness control
• Includes integrated thermal shutdown for enhanced system safety

Applications

• Automotive interior ambient lighting systems
• Instrument cluster backlighting drivers
• Infotainment display local dimming applications

Procurement Notes

Verify the specific suffix 'QPWPRQ1' matches your design requirements, as it denotes the automotive grade, HTSSOP-28 package, and tape-and-reel packaging configuration. Confirm that the AEC-Q100 qualification aligns with your vehicle's component certification standards. Ensure input voltage levels remain within the specified 3 V to 5.5 V range during operation to maintain proper functionality and avoid damage to the internal circuitry.

Selection Notes

Select this component when designing automotive lighting circuits requiring multiple synchronized LED outputs without external microcontroller complexity. It is suitable for applications needing uniform current distribution across numerous LEDs. Consider the thermal performance and package size constraints when integrating into dense PCB layouts. Verify compatibility with existing PWM control signals from the host processor before finalizing the design.

Part Context

This part belongs to the TLC592x family of constant-current LED sink drivers, specifically tailored for automotive use. It shares functional similarities with other members like the TLC5926 but includes additional robustness features required for automotive electronics. The Q1 suffix indicates compliance with strict automotive quality and reliability standards set by the Automotive Electronics Council.

Replacement Considerations

Direct substitutes include the standard commercial version TLC5926PWPR or the non-Q1 automotive variant TLC5926QPWPR. When replacing, verify that the pinout remains identical and that the operating temperature range meets the new application's environmental demands. Ensure that any alternative maintains the same 16-channel architecture and current sourcing capabilities.