PF3000 : LICELL Coin cell charger behavior

[koichisakagami]

Dear community,
We have been developing our product with PF3000.
I have a question about  LICELL Coin cell charger behavior.

PF3000 has the coin cell charger functions via LICELL pin.

[Question]
       If the Coin cell charger voltage which is set by VCOIN[2:0] register is lower than attached Coin cell voltage,
       Is there any problem ?
       I worry about that the flowing current to PF3000 from the Coin cell feeds a damage for internal circuit. (in the case of COINCHEN = 1)

    Best Regards,
    Koichi Sakagami

[igorpadykov · Accepted solution]

Hi Koichi

>  If the Coin cell charger voltage which is set by VCOIN[2:0] register is lower than attached Coin cell voltage,

>       Is there any problem ?

no problem, as coin cell charger circuit is implemented in such way

so coin cell can not feed backward current to charger circuit .

Best regards

igor

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