ZHCSPQ2 December 2022 BQ28Z620
PRODUCTION DATA
The short-circuit current in charge (SCC) function detects catastrophic current conditions in the charge direction. The short-circuit in charge threshold and delay time are configurable via the SCC_CONTROL register. The thresholds and timing can be fine-tuned even further based on a sense resistor with lower resistance or wider tolerance via the PROTECTION_CONTROL register. The detection circuit also incorporates a blanking delay before disabling the CHG and DSG FETs. When an SCC event occurs, the LATCH_STATUS[SCC] bit is set to 1 and is latched until it is cleared and the fault condition has been removed.