Hi Albert,
This design was created using PCAD. The .sch and .pcb files for this design are below. Please note that there are several mods made to the circuit board which are not included in the PCB file.
PMP7451_REVB.sch
PMP7451_REVA.pcb
thanks…
Hi,
You can also get the drawing and request samples directly from the Renco website, but will require you to create an account first. Here is a link:
https://www.rencousa.com/products/rlti?p=rlti-1067
thanks,
Brian
Hi Mikha,
The extra output capacitance slows down the startup time, because that capacitance needs to be charged during startup. This can help prevent the OVP issue that you initially reported, but now you may not have enough capacitance on VDD to…
Hi Hsu,
The UCC28780 controller allows transient over power conditions up to 115ms, so yes, you can support this application with a design very similar to PMP21479.
The PD controller on the output of PMP21479 will limit the output current to just…
Hi Michael,
Yes, this design can be stretched to 2A. Everything will get a little bit hotter, especially the output diode. To get some margin on the constant current regulation, I recommend dropping the current sense resistor (R8) to around 0.24 ohms…
Hi Ronnie,
This reference design only demonstrates the DC-DC power conversion. EMI is tested at the system level of a design. You will need to add some input filtering for EMI compliance. How the filtering is configured will be dependent on what EMI…
Yes, it is capable of running at 23.3A. Obviously, it will run a little hotter at 23.3A, but only slightly so compared to the 21A that it was designed for. Sorry, we don't have any data past 21A.
thanks,
Brian
