SLVSD02D March 2015 – June 2019 TPS65982
The PP_CABLE to C_CC1 and C_CC2 share current limiting through a single FET on the PP_CABLE side of the switch. The current limit ILIMPPCC is adjustable between two levels. When the current exceeds ILIMPPCC, the current-limit circuit activates. Depending on the severity of the over-current condition, the transient response will react in one of two ways: Figure 40 and Figure 41 show the approximate response time and clamping characteristics of the circuit for a hard short while Figure 42 shows the approximate response time and clamping characteristics for a soft short. The switch does not have reverse current blocking when the switch is enabled and current is flowing to either C_CC1 or C_CC2.