TLC69651QPWPRQ1

Overview

The TLC69651QPWPRQ1 is an automotive-grade LED lighting driver IC designed for local dimming mini-LED backlight applications. It features a 28-pin HTSSOP package and operates within a supply voltage range of 3 V to 5.5 V. The device provides 16 independent output channels, each capable of sourcing up to 30 mA of constant current. It supports PWM dimming with high resolution and includes integrated current sinks. The component is qualified to AEC-Q100 standards and functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• Provides 16-channel independent constant current control for precise local dimming
• Integrates high-resolution PWM dimming capability for smooth brightness adjustment
• Features built-in open-load and short-to-ground detection for system diagnostics
• Complies with AEC-Q100 automotive qualification standards for reliability

Applications

• Automotive instrument cluster displays
• Infotainment screen backlighting systems
• Head-up display (HUD) illumination modules
• Advanced dashboard lighting interfaces

Procurement Notes

Verify the complete part number including the QPWR suffix to ensure correct packaging and automotive grade specification. Confirm that the design environment meets the required thermal and electrical constraints defined in the official datasheet. Cross-reference the specific revision level with the manufacturer's documentation to ensure compatibility with existing firmware or hardware designs. Ensure compliance with RoHS directives during procurement.

Selection Notes

Select this component when designing automotive displays requiring individual pixel-level control for enhanced contrast and visual quality. The 16-channel architecture suits smaller matrix configurations compared to higher-density alternatives. Consider the 30 mA per channel limit when determining LED string configurations. The HTSSOP package offers a compact footprint suitable for space-constrained automotive interiors.

Part Context

This device belongs to the Texas Instruments TLC6965x-Q1 family of LED drivers. These components are engineered specifically for automotive display backlighting where high reliability and precise light control are critical. The series supports various channel counts to accommodate different display sizes while maintaining consistent performance characteristics across the product line.

Replacement Considerations

The TLC69650QPWPRQ1 serves as a functional substitute with fewer output channels. Designers must verify pinout compatibility and software register alignment when migrating between variants within the same family.