TLC69637QRTQRQ1

Overview

The TLC69637-Q1 is an automotive LED lighting driver IC featuring 48 constant current sink channels. It supports up to 16-bit individual pixel-level PWM control for local dimming applications. The device operates with a supply voltage range of 2.7 V to 5.5 V and delivers 100 mA per channel. It utilizes a high-speed daisy-chain interface for data transmission. The component is housed in a 56-pin VQFN package measuring 8x8 mm and is rated for operation between -40°C and +125°C.

Feature Summary

• Provides independent 16-bit PWM control for each of the 48 output channels
• Supports local dimming functionality through constant current sinking
• Features a high-speed serial interface for efficient data handling

Applications

• Automotive interior ambient lighting systems
• Local dimming backlight drivers for automotive displays
• Pixel-level LED matrix control in vehicle interiors

Procurement Notes

Verify that the specific ordering suffix matches the required package type and tape/reel configuration. Confirm automotive qualification status (AEC-Q100) if required by your design specifications. Ensure the input voltage range aligns with your system's power supply rails. Check for any specific ESD protection requirements during handling and assembly.

Selection Notes

Select this component when high-resolution local dimming is required for automotive LED arrays. The 48-channel count suits medium-density lighting zones. Consider the VQFN package size for PCB space constraints. Evaluate the thermal performance given the 100 mA per channel capability. Ensure the host controller can support the necessary serial interface speed.

Part Context

This part belongs to the Texas Instruments TLC6963x-Q1 family of automotive LED drivers. These devices are designed specifically for demanding automotive environments requiring precise light control. The family offers various channel counts to accommodate different lighting complexity levels while maintaining consistent interface and control features across the series.

Replacement Considerations

Check for direct pin-to-pin compatible alternatives within the same manufacturer's portfolio. Verify that substitute parts maintain the same 16-bit resolution and channel count. Ensure replacement components meet identical automotive reliability standards and operating temperature ranges.