My name is Mati,
I am testing yours component LTC4357,
I have a question about its function.
I connect 2 components LTC4357 as below,
When I made short at 1 of the capacitors C9, or C10, the component act as expected and turn off the fet Q4 or Q6 correspondingly , so no
Current flow inside to the shorted power supply from the other power supply.
I had an un understood phenomenon wile I made short on the outside common load.
When I made that short, both gates of Q4 and Q6 were shut down to zero and the fets turned off so all the current from power supply 1 and 2
Flow to the load through the internal diodes of Q4 and Q6 and the fets got heated.
The reason I connect outside Aux Vcc to the VDD leg was to avoid such a phenomena.
Is this the expected function of this component LTC4357?
Is there a way to avoid internal shut down of the gate wile making a load short?
when i simulate the component at ltspice it worked o.k.
Please advise
Best Regards
Mati
