TLC69654QRTWRQ1

Overview

The TLC69654QRTWRQ1 is an automotive-grade LED lighting driver IC designed for 64 mini-LED matrix local dimming applications. It features a 16-channel output architecture with individual current sinks rated at 30 mA per channel. The device operates on a supply voltage range of 3 V to 5.5 V and supports a maximum output voltage of 50 V. It utilizes a high-speed daisy-chain interface operating at up to 20 MHz. The component is housed in a WQFN-24 package and is qualified for operation within a temperature range of -40°C to +125°C.

Feature Summary

• Supports 64 mini-LED matrix configurations through time-multiplexing across 16 channels
• Integrates high-efficiency current sink drivers for precise local dimming control
• Features a serial daisy-chain interface for simplified system connectivity
• Automotive qualification ensures reliability in harsh environmental conditions

Applications

• Automotive interior ambient lighting systems
• Mini-LED backlight units for vehicle displays
• Local dimming zones in automotive instrument clusters
• High-resolution exterior lighting matrices

Procurement Notes

Verify the specific suffix RTW to confirm the WQFN-24 package variant. Ensure the Q1 designation aligns with automotive quality standards required by your manufacturing process. Cross-reference the datasheet revision against your design-in date to confirm pinout compatibility and electrical characteristics remain unchanged for production integration.

Selection Notes

Select this component when designing systems requiring independent control of up to 64 LEDs using only 16 physical output pins. It is suitable for applications demanding high brightness uniformity and low power consumption. Consider the 50 V output capability if driving series-connected LED strings. Evaluate thermal management requirements based on the WQFN-24 package constraints under continuous load conditions.

Part Context

This part belongs to the Texas Instruments TLC6965x-Q1 family of LED drivers. It shares architectural similarities with the TLC69604 and TLC69618 but differs in output voltage ratings and specific matrix scaling capabilities. The family targets automotive display and lighting markets, offering scalable solutions from standard backlights to complex mini-LED arrays.

Replacement Considerations

Direct substitutes include other members of the TLC6965x-Q1 family such as the TLC69651 or TLC69658, provided the channel count and voltage ratings match the application. Verify pin-to-pin compatibility and software register mapping before swapping components in existing designs.