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TI Home » TI E2E Community » Support Forums » Power Management » Wireless Power » Wireless Power Forum » Receiver Coil used in BQ51013EVM-725
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Receiver Coil used in BQ51013EVM-725

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Ramasamy Muthuchamy
Posted by Ramasamy Muthuchamy
on May 25 2011 13:22 PM
Prodigy10 points

I am looking for the suitability of  wireless charging in our product. I read through the BQ51013EVM-725 Evaluation Module document. The BOM refers to the receiver coil P/N IWAS-4832FF-50 manufacturer as Vishay.  I am not able to locate the above part in the Web. Based on the size and the dimensions of the receiver coil, we have to decide the siutablity of the wireless charger in our product. Please share the datasheet and availability of the coil.

Thanks and regards,

M.Ramasamy

bq51013
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  • Bill Johns
    Posted by Bill Johns
    on May 25 2011 13:29 PM
    Verified Answer
    Verified by Bill Johns
    Genius12300 points

    Hello M. Ramasamy

    Contact information on the  Receiver Coil from Vishay can be found in the FAQ section.  I have copied it below.

    From FAQ

    Q-Who are the magnetics vendors?---See Below.

     RX Coil P/N IWAS-4832FF-50—Vishay Inductor Division, Dir Marketing Tim Shafer  Office: 605-668-4121 www.vishay.com

    TX Coil P/N EC00296A-- Elytone Electronics Co., Ltd.: Sales Exec  Annie Jya  Tel (Taiwan) : +886-2-2671-2071 Ext 301 Cell : +886-972-190- 990 Fax : +886-2-2672-3775  www.elytone.com.tw

     TX Coil P/NY31-60014F--E&E Magnetic Products, Ltd.: Sales 852-29543333 Tel (Hong Kong) www.eleceltek.com US Sales Contact Darren Simmons 408-727-4223 Cell 707-363-2448 darren_a_simmon@eleceltek.com

     

    TX Coil P/N X1387-TOKO: www.tokoam.com US Sales Contact Bob Nau 619-292-3890 cell 619-392-3645 bnau@tokoam.com

     

    Best Regards,

    Bill Johns,  Applications Engineer

    bqTESLA Wireless Power Products

    Texas Instruments Inc

    Dallas, Texas

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  • Knighty Nimp
    Posted by Knighty Nimp
    on Jul 12 2011 22:47 PM
    Verified Answer
    Verified by Bill Johns
    Intellectual660 points

    John,

    what about the very thin ferrite slab which is a part in the receiver as attached? who is produce this magnatic component?

    Thanks,

    NT4331.Magnatic bqtesla.xls 

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  • Bill Johns
    Posted by Bill Johns
    on Jul 13 2011 15:03 PM
    Verified Answer
    Verified by Bill Johns
    Genius12300 points

    The shield is part of the receiver coil, it is provided as a complete assembly.  The coil used on the EVM (your photo) is manufactured by Vishay and P/N is IWAS-483FF-50, see the EVM user’s guide (SLVU447) page 6. 

     Also manufacture contact info can be found in the FAQ post on the forum.  

    Best Regards,

    Bill Johns,  Applications Engineer

    bqTESLA Wireless Power Products

    Texas Instruments Inc

    Dallas, Texas

    bqTESLA
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  • Sunil Hajeri
    Posted by Sunil Hajeri
    on Apr 29 2013 06:48 AM
    Prodigy10 points

    Hi,

    I am working on low power application (around 100-200mAh on receiver side). For that i need small ferrite core and coil. The size should be around 10mmX20mm. Remaining 10mmX20mm use it for receiver PCB assembly.

    Let me know whether i can get small size coil and core.

    regards,

    Sunil Hajeri

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