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Original question:

questions of SM72442/72445 MPPT controller

SM3320-BATT-EV: Need clarification about on-board Inductor-L1

Natesan Sambasivam
Prodigy 210 points

Part Number: SM3320-BATT-EV

I want to charge a 36V Li-Po battery with SM3320-BATT-EV, please take a look (https://e2e.ti.com/support/power-management/f/196/p/854581/3163179#3163179?jktype=e2e) at the question which I already in TI's E2E forum.

As the On-board inductor(L1) is bulky and heavy, I want to replace it with the smaller size inductor. If there is an equivalent product available, please let me know.

Please find the datasheet of the inductor(L1) - (https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/196/PA2965_5F00_XXXrevP4.pdf)

  • 0
    TI__Genius 12990 points

    Hi Natesan,

    Thanks for following up on this.

    For inductor selection check out the app note below. Let me know if you have any questions.

    If you are looking for a smaller inductor with the same 24uH inductance and 10A peak current values. Checking online I find the following two inductors.

    Let me know if you have any other questions.

    Thanks,