TLC69658QRTWRQ1

Overview

The TLC69658QRTWRQ1 is an automotive-grade LED lighting driver IC designed for 128 mini-LED matrix local dimming backlight applications. It features a 16-channel integrated current sink architecture with time-multiplexing capabilities. The device operates within a supply voltage range of 3 V to 5.5 V and supports output currents up to 30 mA per channel. It is qualified under AEC-Q100 standards, ensuring reliability in temperature grades ranging from -40°C to +125°C. Packaged in a compact WQFN-24 format, it integrates PWM dimming functionality for precise brightness control.

Feature Summary

• Supports 128 mini-LED matrix configurations through 16-channel time-multiplexing architecture
• Integrated current sinks provide precise LED current regulation without external components
• AEC-Q100 qualified for robust automotive environment performance
• Enables local dimming capabilities for enhanced display contrast and efficiency

Applications

• Automotive interior ambient lighting systems
• Mini-LED matrix backlight drivers for automotive displays
• Local dimming control circuits for high-end vehicle infotainment screens
• High-reliability automotive LED illumination modules

Procurement Notes

Verify the complete part number including suffixes such as RTW and Q1 to ensure correct packaging and automotive qualification status. Confirm that the specific revision matches the design requirements for the intended application. Cross-reference the datasheet version to validate electrical characteristics against the latest manufacturer updates before finalizing procurement orders.

Selection Notes

Select this component when designing automotive displays requiring localized brightness control via mini-LED matrices. The 16-channel multiplexed output reduces pin count compared to parallel driving solutions. Ensure the host controller supports the required serial interface timing. Verify thermal management strategies align with the WQFN-24 package dissipation limits under maximum load conditions.

Part Context

This device belongs to the TLC696x-Q1 family, which includes variants like the TLC69654QRTWRQ1 for 64-channel applications. The series is engineered specifically for automotive backlighting needs, offering scalability across different LED densities while maintaining consistent interface protocols and mechanical footprints for simplified board layout transitions.

Replacement Considerations

Direct substitutes include other members of the TLC696x-Q1 family, such as the TLC69654QRTWRQ1 or TLC69652QRTWRQ1, depending on the required channel count. Verify compatibility with existing firmware and PCB layouts when switching between these multiplexed driver variants.

FAQ

What is the maximum output current per channel?

The TLC69658QRTWRQ1 supports an output current of up to 30 mA per channel.

Is this component suitable for harsh automotive environments?

Yes, it is AEC-Q100 qualified and rated for operation temperatures between -40°C and +125°C.

How does the device manage multiple LEDs with limited channels?

It utilizes a time-multiplexing technique to drive a 128 mini-LED matrix using only 16 physical output channels.