Part Number: UCC2897A Other Parts Discussed in Thread: PMP8861 , PMP5123 Tool/software: Hello TI team I am looking for a reference design for a 24V input 12V7A class isolation circuit. PMP5123,PMP8861 products are searched as reference reference circuits…
Hermandez,
Thanks for your reply. I have not see much flyback design for output power more than 100W.
I have seen below two reference designs to suitable my designs approximately.
https://www.ti.com/tool/PMP8861
https://www.ti.com/tool…
Hello Yue Tang,
The UCC2897A is a similar part to the LM5025A
PMP8861 reference design is an 18-72VDC Input, 12V/120W Active Clamp Forward Reference Design.
http://www.ti.com/tool/PMP8861
Regards
John
The image you have shared are for 12W supply, we are designing for 120W supply with below specifications:
input 18V to 80VDC & output 24V, 5A
we wish to have the 120W transformer information as shared by you for 12W supply. we are unable to get…
Hello Sam,
to generate 240W output power w/ a single ended forward converter the input voltage range needs to be tight; I would expect your true input range 18V to 60V or even more like 18V to 75V. So your input range is around 1:3, may be 1:4.
To…
Hello,
Thank you for your interest in UCC24612.
You can use UCC24612 in a Active clamp forward topology, the thing to look out for is the switching frequency of the SR controller. UCC24612 should be used for <100kHz in a forward topology if you increase…
Hello Sreenivasa,
If this design was made for a 12V 2A (24W) output then you will not be able to get a 4A (48W) output without redesigning the circuit.
You can use the Excel calculator for the UCC2897A to help with the component selection and you…
Rogers
At this voltage and power level we recommend one of our active clamp forward controllers like UCC2897A. http://www.ti.com/tool/PMP8861 is an example design that is close to your design target. Please note that at 1.2V output is below the range…
Hey Ben,
Since that is beyond .bt spec limit, they have to choose between a few options.
1. They could use 2x TPS2372 with a single RJ45 port in Beyond BT application
2. They could do a dual PD and dual DCDC that combine at the output to deliver…
Hi Jim,
Thanks for contacting us regarding your WEBENCH design. Your output is fairly high current and probably beyond what WEBENCH would consider "standard." The WEBENCH designer algorithm designs the transformer taking into consideration several factors…
