We are planning to use the LP5520 for a different application than what it was designed for. I have three white LED strings that have varying number of LEDs.
CH1: 5 LEDs
CH2: 4 LEDs
CH3: 3 LEDs
Each string will be operating between 2 and 10mA, which should put the output voltage around 10V to satisfy CH 1 (the largest string). The goal is to keep voltages low, and we don't need a lot of current to achieve the desired brightness. We plan to operate in Adaptive Boost Mode and functionally in Manual Mode, using a microcontroller to interfacing with the LP5520.
Will the uneven string lengths be a problem or do the individual current drivers handle this?
Additional information: We plan to operate on two NiMH cells, and will have to use a boost converter to feed the LP5520.
Thanks,
Leif
