SLUSCX8C March 2019 – March 2021 TPS92682-Q1
PRODUCTION DATA
When CHxOCEN is set to "1" in FEN2 Register, the ILED overcurrent fault is enabled, and the voltage across the current sense inputs (CSPx and CSNx) is monitored. The device sets the OC fault signal when the voltage at the output of the current sense amplifier exceeds the regulation set point VIADJ by 50%. The OC fault threshold is calculated as follows:
If the CHxOCFL bit is set to "1" in FLATEN Register, the OC fault is configured as a latched fault and the associated channel turns off and remains off with the rising edge of CHx_OC. The channel can be turned on again only by re-setting the CHxEN bit to "1" in EN Register. For CHxOCFL = 0, the OC fault is a non-latched fault. In this case, the associated channel turns off when an OC fault occurs, but the channel goes through a restart and soft-start ramp when CHx_OC is cleared and the MFT is expired.