TLC69664QRTWRQ1

Overview

The TLC69664QRTWRQ1 is an automotive-grade LED lighting driver IC designed for mini-LED matrix local dimming applications. It features 64 independent output channels with a maximum sink current of 60 mA per channel and supports up to 16-bit PWM dimming resolution. The device operates within a supply voltage range of 3 V to 5.5 V and withstands output voltages up to 50 V. It is qualified to AEC-Q100 standards and housed in a compact 24-WQFN (4x4 mm) package, supporting operating temperatures from -40°C to +125°C.

Feature Summary

• Supports 64-channel mini-LED matrix configurations for precise local dimming control
• Provides high-resolution 16-bit PWM dimming capability for smooth brightness adjustment
• AEC-Q100 qualified for reliable operation in demanding automotive environments

Applications

• Automotive LCD backlight systems requiring local dimming
• Mini-LED display driver circuits
• High-end automotive infotainment screens

Procurement Notes

Verify the complete part number including the suffix RTW to ensure correct packaging and tape-and-reel specifications. Confirm that the design meets AEC-Q100 requirements for the intended automotive grade. Check datasheet thermal dissipation limits given the 60 mA per channel rating. Ensure the host controller interface matches the device's serial communication protocol before finalizing procurement.

Selection Notes

Select this component when a high channel count is required for complex matrix backlighting architectures. It is suitable for designs needing fine grayscale control via 16-bit PWM. Consider the 24-WQFN package size constraints and the 50 V output voltage headroom. Compare against other family members like the TLC69662 if fewer channels are sufficient for the application.

Part Context

This device belongs to Texas Instruments' automotive LED driver portfolio, specifically engineered for advanced display technologies. It complements other drivers in the series by offering increased channel density for next-generation automotive displays. The Q1 suffix indicates its qualification for automotive use, ensuring compliance with strict reliability and temperature standards required in vehicle electronics.

Replacement Considerations

Check for direct pin-to-pin replacements within the same family, such as variants with different channel counts or packages. Verify functional compatibility regarding PWM resolution and current ratings before substituting.