Got the below problem:
We are currently evaluating TPS62142RGT and TPS62143RGT chips.
operating conditions for TPS62142RGT : VIN=12V; FSW=GND; DEF=GND; L=2.2uH (VLS3010T-2R2M1R3) SS/TR = 3.3nF to GND Operational current around 700mA operates fine but any accident overcurrent and/or shortcut between OUT and GND cause irreversible malfunction (like fusing) without heating. (looks like missing overcurrent/short current protection circuit)
operating conditions for TPS62143RGT : VIN=12V; FSW=FLOAT; DEF=GND L=3.3uH (74437324033) SS/TR = 3.3nF to GND Operational current around 50-100mA device operates some time (few minutes) and then turns off (like fusing) without recovery even if power switched off and on again Our conclusion is to remove TPS62143RGT from our current design and replace it by TPS62110 which demonstrates high immunity level. It seems that TPS62142 / TPS62143 has zero immunity level.
Should we expect TPS62142 / TPS62143 to demonstrate the same level of as TPS62110 demonstrates?
Dose TI have samples of TPS62142 / TPS62143 which should demonstrate the same level of immunity as TPS62110 demonstrates?