SNVSBY7 March 2021 TPS92390
If the ISET pin resistor is shorted to GND during normal operation, the maximum current for each LED channel can be calculated in Equation 20:
LED_CURRENT[11:0] register will be automatically modified to 1/4 of latest programmed data. if it is not programmed after device enabling, the default value of LED_CURRENT[11:0] register is 0xFFF and automatically modified to 0x3FF after the fault occurs. If ISET pin voltage returns back to above 1.1 V, the LED_CURRENT[11:0] register data automatically returns to latest programmed data. The ISET_STATUS fault bit will be set in the BOOST_FAULT_STATUS register and the INT pin is triggered.