Other Parts Discussed in Thread: PMP20850, UCC2897A, PMP22075
hi sir
i want to design a power module
spec vin :-48v
vout:12v/10A
lm5026 Is a suit solution?
thanks
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Hi,
Yes, you can consider LM5026 or UCC2897A as good choices for active clamp PWM controllers targeting telecom input voltage. PMP20850 is one example that may help you get started. This reference design is using UCC2897A and accepts -72V<-48V<-36V as the input voltage and converts to Vout=3.3V, 15A. Not exactly the same as you requirements but you may be able to revise the power stage to meet your needs. Thanks for connecting through E2E.
Regards,
Steve
hi Steve
we plan to use the LM5026 to do the power, spec is VIN:-48V, Vout:12V/10A
Did you have any reference design?
thanks
You can search the TI reference design library here. I gave a -48V design example as PMP20850. PMP20850 at least gives an example of the power stage configuration but it it using the3 UCC2897A PWM. You want to use the LM5026 which hopefully you can configure using the app notes, data sheets and any design examples you can find. TI likely will not have an exact design example matching your request.
Regards,
Steve
Hi Steven
I refer to the PMP22075 that meet my inquire, but Vout need the 12v/10A
Could you let me know which component need modify?
thanks
Alex,
All power stage components, feedback, compensation and PWM settings may need to be reconsidered.
Regards,
Steve
Alex,
SPICE models, reference designs, app notes and EVMs are available within the product folders for LM5026 and UCC2897A. The UCC2897A includes a design tool calculator but the LM5026 does not have a calculator tool available.
Steve