ZHCSJQ2A May 2019 – August 2019 TPS2596
PRODUCTION DATA.
The current through the device increases very rapidly during a short-circuit event. If the current exceeds 1.5 x ILIM, the device engages a fast current clamping circuit to regulate down the current faster than the nominal overcurrent response time (tLIM). The device does not completely turn off the power FET to ensure uninterrupted power in the event of transient overcurrents or supply transients. The device stops limiting the current once the load current falls below the programmed ILIM threshold.
The output voltage drops in the current limiting state, resulting in increased power dissipation in the internal FET and might lead to thermal shutdown if the condition persists for an extended period of time. In this case, the device either stays latched-off or starts an auto retry cycle as explained in the Overtemperature Protection (OTP) section.