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TI Home » TI E2E Community » Support Forums » Power Management » Power Modules » Power Modules - Forum » Damaged 6 pieces of DCR010505U
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Damaged 6 pieces of DCR010505U

Damaged 6 pieces of DCR010505U

This question is answered
Alex Fridlyand
Posted by Alex Fridlyand
on Jun 06 2012 09:39 AM
Prodigy20 points

С39, С40, С41, С42              0805 – X5R – 10 V – 4,7 mF ± 20 %

С43, С44                    0805 – X7R – 25 V – 0,1 mF ± 20 %

С45…С47                  D – 10 V – 47 mF ± 20 % – LO ESR

R23                             0805 – 0,125 – 0 Om

L2, L3, L4                  BLM21PG600SN1D   (Murata)

L5…L7                      SDR0403-330KL       33 uH  (Bourns)

U2, U3                                   DCR010505U

Consumption:

U2    <50 mA

U3    < 40 mA

Hello!

I use DCR010505U in the measurement instrument. See the circuit above.  I’ve bought  12 pieces.  6 pieces of them are working,  and  6 pieces of them  have failed instantly after turn on.  I have  changed C41 C42 to 1,0 mF as recommended on the datasheet, but it have not helped.

Are working number 16Z390H, 79FY13H

Failed  85EF48H, 01Z07H

Alex Fridlyand

Isolated DC/DC Converters dc/dc converter DCR010505U DCR0105 DCR01
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  • Alex Fridlyand
    Posted by Alex Fridlyand
    on Jun 06 2012 09:55 AM
    Prodigy20 points

    Sorry! It is circuit from my post

    С39, С40, С41, С42              0805 – X5R – 10 V – 4,7 mF ± 20 %

    С43, С44                    0805 – X7R – 25 V – 0,1 mF ± 20 %

    С45…С47                  D – 10 V – 47 mF ± 20 % – LO ESR

    R23                             0805 – 0,125 – 0 Om

    L2, L3, L4                  BLM21PG600SN1D   (Murata)

    L5…L7                      SDR0403-330KL       33 uH  (Bourns)

    U2, U3                                   DCR010505U

    dc/dc converter DCR010505U DCR01
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  • Tom Guerin
    Posted by Tom Guerin
    on Jun 06 2012 10:35 AM
    Verified Answer
    Verified by Tom Guerin
    Mastermind21260 points

    I received an e-mail. Working directly with customer.

    Tom

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