1) The BL boost ovp is set at 21 volts in the software but as we increase the brightness to the voltage (vout) it passes 21v and goes higher up to 27 V. My question is if we are setting the OVP(over voltage protection) as 21v, the backlight should not go beyond 21v otherwise it can burn the lcd panel. How do we configure this?
2)What values should we select for sel_i and sel_p. We are using 7 leds in a string and according to datasheet sel_i represents the number of leds in the string. and the inductor we are using is 10uH so what values should we use for these two. It is also stated in the datasheet that these two parameters are factory selected for optimized performance but we need to know the values for them because when we set the register 3(0x07) we need the value to add on that register. Also what effect do these two have on the backlight voltage?