This manual outlines the operation and implementation of the TPS92518 as a dual-channel LED current regulator with the specifications listed in Table 2-1. For applications with a different input voltage range or different output voltage range, refer to the TPS92518 data sheet (SLUSCR7). The TPS92518EVM-878 evaluation board is designed to be controlled by a TI microcontroller board, part number LEDSPIMCUEVM-879, available separately, although it can be controlled by any SPI-capable control system. Note that the TPS92518x supports a means to enable the part without SPI communication. By applying a voltage above the second threshold level, 23.6 V typical, on the ENABLE pin, the state of the LEDxEN register is bypassed. This allows a TPS92518 to be powered and operated using the default register values (for details, refer to the TPS92518 data sheet (SLUSCR7)).