ZHCSGR8A September 2017 – July 2018 TPS63710
PRODUCTION DATA.
A current limit protects the device against short circuits at the output. The current limit is scaled down from its nominal value for input voltages below 4 V. The current limit monitors the peak current in the LSD during the ON-time. If this current is reached during the ON-time, the LSD is turned off and the HSD and RECT turned on to decrease the current. The next ON-time begins at the next switching cycle.
A short circuit from VIN to GND during operation should be avoided as this leads to a high current discharging the CCP capacitor through the back-gate diode of the high side switch to GND. When there is an overload on the output and the output voltage drops below 0.9 times the target output voltage, the device re-starts.