That should work if it satisfies your system requirement. Since CHG won't be driving a FET, CCAP can be made smaller. Remember that CHG was intended to drive a FET gate, so it should drive a relatively high impedance circuit. Current from CHG will drop its voltage, comes from the battery and will add heat to the IC.
Also realize that CHG is derived from BAT with respect to CPCKN, so there will need to be sufficient voltage between your PACK terminals and the part will have to be awake to get a CHG output.