The STEVAL-LLL014V1 evaluation kit features the SPC582B60E1 32-bit automotive-grade microcontroller for controlling the ALED7709 LED driver via an I2C interface. The main board can be configured and controlled via a Mini-USB connection to a PC running the STSW-LLL014GUI software. The kit also includes an LED board with four strings of 10 LEDs.
The STEVAL-LLL014V1 enables the user to disconnect the ALED7709 device from the on-board MCU so that it may be controlled using an external I2C interface during development.
The control board supports an input voltage ranging from 4.5 V to 42 V. By default, the ALED7708 is configured in boost mode operating at 400 kHz with spread spectrum, but this is disabled if the input voltage is less than 6 V. The output current for LED control is adjustable with up to 150 mA per channel.