16-channel constant-current sink for backlight and sign panels
The Texas Instruments TLC5924DAP is a 16-channel constant-current sink LED driver designed for backlighting applications. Each channel delivers up to 80 mA, set by an external resistor, and the integrated 30 MHz shift register allows daisy-chaining multiple devices for large LED arrays. The part operates from a 3 V to 5.5 V supply and is specified over the -40°C to 85°C industrial temperature range, making it suitable for outdoor signage, automotive cabin lighting, and display backlight panels.
The 16 outputs at 80 mA each sink a total current limited by package thermal constraints. The 32-HTSSOP package has an exposed thermal pad;