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About TPS23753 SW Coli change to Other Coil and dose we have side effect ??

March Jasper
Expert 2340 points
Other Parts Discussed in Thread: TPS23753, TPS23753AEVM-004, TPS23753A, PMP7355

Hello 

Now we started to PoE production  with TPS23753.

 Our spec is  5V / 2A(10W) output. 

EVM reference recommended coil type is   "  HA3803-BL  " . 

 *  Reference  EVM  Type is TPS23753AEVM-004 

But we did not use same  EVM Reference coil.

Now we used this coil   " POE13F-50L"  for our product. 

a) EVM Refarnce and Recommend  Coil   * Both  is Coil Craft . 

  HA3803-BL       datasheet.octopart.com/HA3802-BLB-Coilcraft-datasheet-22122339.pdf

         

b) Our using Coil           

  POE13F-50L_ 3   data Sheet   pdf1.alldatasheet.jp/.../POE13F-50L.html

【　Question　】

 We worry about some one side effect  and some other issues.

 Could you give us some comment when  use this "  Not Reference coil   for " TPS23753A ??

We understood this question is very hard question and difficult answer .

Please give us everything comment to us .

Thanks and Regard

Jasper  ( Japan Disty ) 

 

   

  • 0
    TI__Mastermind 41760 points
    Hi Jasper,

    If using the POE13F-50L, does this mean you are designing with a diode on the secondary? I recommend looking at PMP7355 as a reference when using this transformer with the TPS23753A. There are not too many differences and mostly only component values differences.

    Thanks!
    Regards,
    Darwin