ISELED Alliance's new evaluation kit
The ISELED Alliance launched a new evaluation kit for ISELED, a digital smart RGB LED solution for automotive ambient lighting. The evaluation kit is designed to allow developers to quickly build and prototype ISELED solutions. Custom lighting effects can be programmed using the supplied software suite from Lucie Labs and tested on the kit’s 16 RGB LEDs. Optical measurements can be performed to evaluate various lighting solutions.
ISELED is concept for in-car LED lighting designed to reduce system cost and complexity, simplify control, and enable the creation of dynamically changing light effects. This and other LED-related products and solutions for the automotive market are currently being jointly developed under the open ISELED Alliance umbrella. The ISELED Alliance members are Inova Semiconductors, Dominant Opto, Lucie Labs, NXP Semiconductors, TE Connectivity, the University of Pforzheim, and Valeo.
The evaluation kit is based on NXP’s S32K144EVB-Q100 controller board, featuring the automotive qualified S32K1xx Arm Cortex based MCU with a USB cable for connection to a PC host. An adapter board, which includes a power supply, is plugged into a bar of 16 RGB LEDs from Dominant Opto.
Each LED includes an INLC100 controller die from Inova Semiconductors housed in a single three-LED package (red, green, and blue). The Inova INLC100Q16 incorporates functions such as color/brightness control and low-light dimming support. The driver can also be used as a signal converter with ISELED LED modules to convert GPIOs from a microcontroller using single-ended signaling to the differential signaling used on the ISELED bus.
The INLC100 supports calibration of a LED's brightness and the dominant wavelength, provides temperature compensation for red LEDs, and features a built-in one-time programmable (OTP) memory for storing calibration and compensation data values. The smart driver also has device authentication features. It includes a built-in oscillator, which eliminates the need for external components. It requires a single supply voltage and integrates a built-in LDO (low dropout regulator). The package also includes a temperature sensor and comprehensive diagnostic features.
The ISELED software driver from NXP and the LED lighting effects studio tool from Lucie Labs are pre-programmed in the S32K MCU and available free of charge under a 3-month evaluation license.
The 2847262-ISELED Application Kit will be available worldwide from March 2018, and can be bought directly from Farnell element14 for €499. Inova Semiconductors and NXP will provide customers with project and technical support from the initial design idea stage all the way through to serial production.