Part Number: PMP21455 Other Parts Discussed in Thread: PMP20708 , UCC28881 Tool/software: Hi,
We're designing a very compact mains powered device, and the PMP21455 specs and small form factor fit our requirements.
I've have some questions in regards…
Part Number: PMP21455 Other Parts Discussed in Thread: PMP20708 Tool/software: Hi,
Specification of PMP21455 design is: Vout = 5 V, Iout = 200 mA, but when I checked 750316908 transformer parameters on the Wurth's page:
https://www.we-online.com/en…
Hi Abhijith
Thank you reaching out.
I think UCC28881 should be fine for this application. Please refer the following design
https://www.ti.com/tool/PMP21455
You can also check at UCC28911 which offers better performance.
Regards,
Harish
Part Number: PMP21455 Other Parts Discussed in Thread: UCC28881 , , PMP20708 In your reference design PMP21455, UCC28881's Pin 4 (named as output in the datasheet) is fed from an external current source.
Is that correct? Why are you suggesting to use…
Part Number: PMP21455 Dear Sir or Madame,
I have built your reference design and during that process noticed that the schematic symbol (pinout) for the transformer is wrong at least for the secondary side.
Could you confirm?
Best regards
Lukas
Hi, Vikram
There are many reference designs using UCC28881 for isolated power supply, below reference design is recommended.
https://www.ti.com.cn/tool/cn/PMP21455
BR,
Yunsheng
