Hi,
I'm designing a board with a single phase inverter, three phase inverter and a buck-boost DC-DC converter (all driven with MOSFETS).
I need to keep the power nets separate from the logic/signal nets.
I've found a high side driver for DC-DC converter. This is suitable for the application as it doesn't assume common grounds.
I would like to use half-bridge MOSFET drivers for the two inverters (i.e. five in total), unless there are suitable full-bridge and 3ph ICs available.
However... I can't find a suitable IC because they all seem to assume common ground on the low side (i.e. connecting the source of the MOSFET with logic ground). I want to keep the logic/signal ground net separate from the power nets.
Question:
Are there any ICs out there that do not connect the low side source to logic ground? (1ph and 3ph, OR half-bridge)
Specs:
This isn't a high voltage application. The power nets have limits of (-25V, +25V) and (-5A, +5A)
As for logic and signals: logic is 5V; and power supplies rails are +5V, -15V, +15V and GND.
Thanks for your help!
