Team,
I just picked this account up and they already designed in the TPS2393 and is having some problems. Attached are the schematics and come infor below. Does this device even work at +48V?
---------------------------------------- From customer
We are using TPS2393 in our board and the schematic page is attached. For some reason this circuit is not working. We are connecting 48V (+) to 48V_EMI_P and GND to 48V_EMI_N. Do we need any changes for +48V system.
Here are the voltage levels at different pins
1 (INSA) = low
7 (INSB) = low
13 (/FAULT) = 48V
14 (EN) = 1.4V
28 (GATE) = low
40 (/PG) = high
43 (OVLO) = low (.9V)
44 (UVLO) = 2.1V