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TI Home » TI E2E Community » Support Forums » Power Management » Power Modules » Power Modules - Forum » Parallel Current Sharing using DCR021205's
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Parallel Current Sharing using DCR021205's

Parallel Current Sharing using DCR021205's

This question is answered
Justin Curran
Posted by Justin Curran
on May 28 2010 12:11 PM
Prodigy30 points

Sorry this is in the wrong forum but I could not find a Isolated DC/DC section.

 

I require an isolated power system to power a microcontroller, 4 Optocouplers, and some various sensors, approximately 3W.

 

One DCR02 is capable of 2W output Max.

 

My problem is that there isnt a isolated dc/dc converter that can meet these power requirements, so i'm electing to put two DCR021205 in parallel to share the load in order to give me the output power that my design requires.

 

I'm wondering if there are any design consideration i should take into consideration other than whats outlined in the application sheets as too noise reduction and low external capacitance on the sync pins of the device.

 

This is being implemented on a 4 Oz/Cu PCB with 90mil traces.

 

Cheers,

Justin

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  • Tom Guerin
    Posted by Tom Guerin
    on Jun 01 2010 09:18 AM
    Verified Answer
    Verified by Tom Guerin
    Mastermind21350 points

    The DCRXXXXX regulated series does not curent share. The voltage regulation of <2% prevents any current sharing.

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