Other Parts Discussed in Thread: TPS272C45
TPS274160 is used with all 4 channel in parallel. for ohmic loads this seems to work fine. However, also inductive loads shall be switched. This seems to have some problem. Goal is to switch an inductive load with 2A 24V => 48VA. Therefore the inductivity would be 1,2H and 12Ohms. Ideally we would also switch at higher temp say 60-70°C. We are observing that TPS274160 can not handle this condition and blows up. What could be the reason? Can the internal TVS diodes not handle the condition or is potential mismatch of the TVS didoes the problem causing a kind of cascaded effect.
Do you have any experience what is possible when switching inductive loads in the paralleled output configuration?