SNOSDE8A July 2023 – September 2023 LM74912-Q1
PRODUCTION DATA
RSET is the resistor connected between common drain point and CS+ pins. This resistor scales the short circuit protection threshold voltage in positive direction while resistor RISCP connected from ISCP pin to VOUT scales short circuit threshold in negative direction. The shift in the VDS sense threshold voltage for short circuit detection can be calculated per the following equations
An additional de-glitch filter (optional) consisting of RSCP and CSCP can be added from ISCP pin to CS– pin, as shown in Figure 9-1, to avoid any false short circuit trigger in case of fast automotive transients such as Input Micro cuts (LV124, E-10), AC superimpose (LV124, E-06), or ISO7637-2 Pulse 2A.