PMP10215: L8 & L9 in schematic don't match BOM parts

Hi Mark,

Actually I downloaded the BOM (in revision E) from TI website (link: https://www.ti.com/lit/pdf/tidrlm2). The BOM shows for both inductors L8 and L9 a value of 10uH and the part number is 744711005 (datasheet link: https://www.mouser.com/datasheet/2/445/744711005-1722097.pdf)....so there must be a typo or mistake somewhere but I cannot find it.

Anyway I confirm the part number 744711005.

Please let me know if that is OK or you accessed a different file.

Best regards,

Roberto

Hi Roberto, I don't think the gerber files and therefore PCB layouts, Assembly Drawing documents etc have been updated to reflect the 744711005 product as the footprint for L8 & L9 is still for a vertical choke/inductor (the 74471101 product).  

The 744741101 still appears on the Wurth page for this product also:  https://www.we-online.com/web/en/electronic_components/produkte_pb/products_pbcm/product_spotlight/pmp10215.php 

So I guess we will have to stick with the 74471101 inductor as it suits the gerber files etc that we have had produced.  Does TI still support the design using this part?  If not, will the gerber file, PCB layouts, assembly drawings etc be updated to reflect new products too?

Kind regards,

Mark

Hi Mark,

In the latest PCB layout I added two small HF inductors L8 and L9; fine-tuning of the EMI section takes time and I used the part 74471101's library only to route the layout. Then, during the debugging I found that the part 744711005  was the best in terms of EMI performance. I know this inductor should be placed horizontally on the board, but there was no space so I added a thick wire on one terminal and populated it vertically. You can see it in the picture of the prototype. Please mount it in a similar way. if you think that vibration might bend them and lean to other components, you can add a shrinkable isolating tube. Does it sound reasonable?

Thanks,

Roberto