Hello,
Recently I have been evaluating the bq24618 and have run into a snag with the precharge/termination current. According to the datasheet "The minimum precharge and termination current is clamped to be around 125mA with the default 10-mΩ sensing resistor". In my experimentation I have observed that the chip will terminate charging below this level after setting the controlling voltage divider below the set 125mA, however with some fluctuation. Basically I haven't observed the "clamping" that the datasheet claims to be fixing the limiting current.
I have a few questions. Does this clamping only occur at the precharge phase? Is the 125mA limit a minimum recommendation for reliable charging without observing strange behavior from the chip (which I have been observing at sub 125mA levels). Honestly most have my trouble with this chip has been due to the termination current, it would be helpful to get some advice on this limit having never used this chip family before. Thank you.
