Hi Behnam,
For the negative rail you could use a seperate CUK stage.
As LM5155 can not accept a negative feedback voltage, you would have to use a level shifter curcuit for the feedback. As a reference plese have a look here:
https://www.ti.com/tool/…
Hi Jimmy,
Thanks for using the e2e forum. I checked for reference designs of inverting SEPIC (Cuk) controllers, but did not find a design with LM5155.
We have a design for a similar controller LM5022. https://www.ti.com/tool/PMP30487
LM5155 is a much newer…
Hello,
Yout might have a look at this positive to negative example: https://www.ti.com/tool/PMP30487
Otherwise it can work if you reference the whole circuit to the negative potential.
Best regards,
Moritz
Hi Svetoslav,
there is no such document unfortunately. please refer to the reference design to build the sepic circuit
http://www.ti.com/tool/PMP30487
http://www.ti.com/tool/PMP20197
Other Parts Discussed in Thread: LM5155 Hi team,
Good day.
Our customer is looking for a gate driver with spice model available to be used for Cuk Converter. Here are the requirements: Vcc = 30 to 60V Channels = 1 Switch Type = MOSFET Driver Topology = Low…
