Part Number: PMP21274 Hi,
Base on TI PMP21274 reference design schematic, we build PCBA to testing thermal but find out have high Temp issue (~90 degree for Inductor).
But rework MODE pin to GND then got normal temp for inductor (~45 degree).
May I know…
So, if you could (eventually) find some LM5122 controllers you could replicate this reference design from TI. The following link shows test results, schematics, BOM, layout files, gerbers, etc.
https://www.ti.com/tool/PMP21274
This is a synchronous boost…
Hello Youhao Xi,
You have suggested a design for 48V, 2.5A DC-DC boost converter in my original post.
https://www.ti.com/tool/PMP21274
I have a little bit confused about capacitors which are set in BOM,
C2,C3,C4,C5,C6,C7,C8, These all capacitors are SMD…
Other Parts Discussed in Thread: TPS23861 , PMP21274 , UCC2897A , LM51551
Product:TPS23861PW
Issue:VPWR will from 48V drop to 40V when join up POE device,then up to 48V.(Power control IC is LM2481MM)
please help me,what is the reason. Whoever effects ?…