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BQ24040 question. VISET vs. ICC

Kero
Prodigy 20 points
Other Parts Discussed in Thread: BQ24040

Hello There,

The question is regarding the BQ24040 charging current control.

I understand that ICC is set by RISET from the ICC= KISET/RISET relation, I'm trying to understand the relation between the voltage on the ISET pin to ICC? 

  • 0
    Prodigy 20 points

    Actually, can we assume a “Current mirror circuit ”@ ISET pin of  “F” current mirror ratio,  F=I(chg) / I( Iset)  ,  and  I( Iset)=(1.5V)/RIset ,  I(chg)=KISET/RIset ，so F=K/1.5?