TLC69637QDCARQ1

Overview

The TLC69637QDCARQ1 is an automotive-grade LED lighting driver IC featuring 48 constant-current sink channels. It supports independent pixel-level PWM control with up to 16-bit resolution and includes 7-bit digital current (DC) correction for peak current management per channel. The device operates within a supply voltage range of 3 V to 5.5 V, delivering 100 mA output current. It functions across an extended temperature range from -40°C to +125°C and utilizes a 56-pin HTSSOP package.

Feature Summary

• Provides 48-channel constant-current sinking capability for high-density LED arrays
• Enables precise local dimming through integrated 16-bit PWM and 7-bit DC current control
• Designed for automotive environments with extended industrial temperature rating

Applications

• Automotive interior ambient lighting systems
• Local dimming backlight drivers for automotive displays
• High-channels-count LED matrix illumination

Procurement Notes

Verify the complete part number including suffixes such as 'RQ' or 'R' to confirm reel packaging specifications. Ensure the component meets AEC-Q100 automotive qualification standards required for your specific application environment. Cross-reference the datasheet revision against your design requirements to confirm compatibility with existing firmware and hardware interfaces.

Selection Notes

Select this component when designing systems requiring high channel counts with individual pixel control. The integrated oscillator simplifies timing circuitry compared to external clock solutions. Consider the 56-pin HTSSOP footprint for PCB layout constraints. Evaluate thermal dissipation capabilities given the 100 mA per channel output specification in enclosed automotive enclosures.

Part Context

This device belongs to the TLC69637-Q1 family of automotive LED drivers. It shares functional similarities with other Texas Instruments automotive LED solutions but distinguishes itself through its specific 48-channel architecture and combined PWM/DC control methodology. It serves as a specialized solution for complex lighting topologies requiring granular brightness adjustment.

Replacement Considerations

Direct substitutes include the TLC69627QDCARQ1, which offers similar 48-channel functionality but differs in output current specifications. Verify pinout compatibility and electrical parameter alignment before substitution. No other direct equivalent part numbers are publicly confirmed by the manufacturer.