Hello,
we want to use all LED outputs shorted to maximize current in a single string configuration. LP8860 runs in display mode. According to table 10 of datasheet LED_STRING_CONF needs to be set to 101.
Question 1)
In Table 10 it says "Y/N" in section "Short LED String" under 101 for LED_STRING_CONF. In which cases is short detection possible ? I guess that usually two strings are compared using DRV_LED_FAULT_THR value in register 0x64 to detect shorts. However, here we have only single string.
Question 2)
What are the optimal values for DRV_LED_FAULT_THR, DRV_HEADER and DRV_LED_COMP_HYST in a single string configuration ? In our case we have 8 LEDs in series with Vf,total between 22V and 28V.
Best Regards.