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BQ51003: Possible to use thermocouple instead of NTC?

Vassiliy Cheremetiev
Prodigy 10 points
Part Number: BQ51003

Tool/software:

Good afternoon,

I am using bq51003 for a wireless Qi charger receiver. I currently use a NTC as thermal protection, but I would like to replace it by a thermocouple so it is easier to set at different places. Has anyone done something like that, and would be able to share it with me? If not, could I have some tips about how to do it?

Best,

V.C.

  • 0
    TI__Guru 73211 points

    Hi V.C.

    Vassiliy Cheremetiev said:
    Has anyone done something like that, and would be able to share it with me?

    No have not seen this done.  The TS / CTRL pin is set up to support an NTC and would need additional circuits to support thermocouple.

    Another option to consider is a leaded NTC see See Semitec 103AT-2 this is standard version, 103AT-11 and 103AT-4 are leaded versions.