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TIDA-010030: What is the part?

Liu Yang
Expert 8695 points
Other Parts Discussed in Thread: CSD19536KTT

Hi Team,

In "TIDA-010030-Main board-Schematic.PDF",
what is part between CSD19536KTT and BAT+, is it three terminal fuse?
Could you mark it in the board image?

Best Regards,
Tom Liu

  • 0
    TI__Guru 54715 points

    Hi Tom,

    The item shown in the block diagram is a 3 terminal fuse.  It acts as a fuse or alternately is opened by a heater.on the 3rd terminal.  See the schematic page 2, it is F1.  On this board F2 is also placed as an alternate. See the BOM for the component used on this design from Polytronics.  Dexerials and Schott also make this type of component, possibly others. 

    In the board image the fuse F1 is the blue component left of the top FET, partially covered by the secondary board.