16-channel constant-current sink with shift register
The Toshiba TC62D723FNG,C,EL is a linear LED driver IC that integrates 16 constant-current sink outputs, each rated for 90 mA, with a shift register interface for serial data loading. The 17 V output compliance lets you drive multiple LEDs in series per channel, while the shift register topology means you can daisy-chain several of these drivers using just three microcontroller GPIO lines — a practical way to scale LED count without multiplying processor pins. The 24-HTSSOP package with exposed pad helps pull heat out of the 16 channels when they're running near the 90 mA limit.
Cascading multiple drivers
Because the data interface is a shift register, you can cascade multiple TC62D723FNG devices by connecting the serial data output of one to the data input of the next, sharing the same clock and latch signals. This keeps the microcontroller pin count at three regardless of how many drivers are chained — useful for large LED matrices or segmented displays where each driver handles 16 channels.