TLC69611QRTWRQ1

Overview

The TLC69611QRTWRQ1 is a 16-channel automotive local dimming backlight LED driver IC from Texas Instruments. It features linear constant current outputs with PWM dimming capability, delivering up to 60 mA per channel. The device operates within a supply voltage range of 3 V to 5.5 V and supports an operating temperature range of -40°C to +125°C. It utilizes a high-speed daisy chain interface for efficient data transmission and is housed in a compact WQFN-24 package.

Feature Summary

• Supports 16-channel linear constant current output with independent PWM dimming control for precise brightness management.
• Features a high-speed daisy chain interface allowing multiple devices to be connected sequentially for simplified system wiring.
• Designed specifically for automotive applications with AEC-Q100 qualification and extended temperature range compliance.

Applications

• Automotive mini-LED matrix local dimming backlight systems
• High-resolution automotive display backlighting
• Advanced instrument cluster illumination

Procurement Notes

Verify the specific suffix RTWRQ1 to ensure correct packaging and automotive grade qualification. Confirm that the WQFN-24 footprint matches your PCB layout requirements. Ensure thermal management strategies are adequate for the intended operating environment given the -40°C to +125°C rating. Cross-reference the datasheet for any recent design changes or errata before finalizing procurement.

Selection Notes

Select this component when designing automotive displays requiring localized dimming capabilities. It is suitable for applications needing high channel count density in a small form factor. Consider the 60 mA output current limit when sizing external components. The daisy chain architecture makes it ideal for multi-device configurations where pin count reduction is critical.

Part Context

This part belongs to the TLC696x1-Q1 family of automotive LED drivers. It shares architectural similarities with other members like the TLC69600Q and TLC69618Q but differs in specific output characteristics and interface implementations. The Q1 suffix denotes automotive qualification, ensuring reliability under harsh vehicular conditions compared to standard commercial variants.

Replacement Considerations

Direct substitutes within the same family include the TLC69600QRTWRQ1 and TLC69618QRTWRQ1, though feature sets vary. Verify compatibility regarding output current limits and interface protocols before swapping. No other public confirmed substitute part numbers are available for direct replacement without design modification.

FAQ

What is the maximum output current per channel?

The TLC69611QRTWRQ1 provides a maximum output current of 60 mA per channel.

Does this device support PWM dimming?

Yes, the device supports independent PWM dimming for each of its 16 channels.

What is the operating temperature range?

The device is qualified for an operating temperature range of -40°C to +125°C.