Constant-Current RGB LED drivers ideal for battery-powered end equipment

Texas Instruments LP50xx 18-Ch or 24-Ch Constant-Current RGB LED Drivers offers integrated colour mixing and brightness control with pre-configuration simplifying the software coding process. The drivers utilise human-machine-interaction in smart homes and other applications where RGB LED drivers are needed. The devices improve user experience using LED animation effects such as breathing, flashing and chasing. Using the integrated 12-bit, 29kHz PWM generators for each channel allows a smooth, vivid colour for LEDs, and removes audible noise. The global RGB bank control decreases the microcontroller loading, targeting a fade-in, fade-out type breathing effect. The device implements a PWM phase-shifting function to help decrease the input power budget when LEDs turn on simultaneously. Also, the device highlights an automatic power-saving mode to produce ultralow quiescent current. This feature allows a device total power consumption of 10µA when channels are all off for 30ms, making the driver ideal for battery-powered end equipment.