I have a hardware that is powered by a standard polymer battery (http://www.ebay.com/itm/3-7V-Polymer-Rechargeable-Battery-2000mAh-PCM-103450-for-GPS-ipod-Tablet-PC-MP3-/262605237924).
The hardware draws a lot of current, more than 3A, perhaps up to 5A. This triggers the overcurrent protection of this battery. The protection circuitry includes two SOT23-6L (http://www.phaselink.com/QA/SOT23-6L.pdf) ICs:
8205 (http://www.ait-ic.com/uploads/2011-01/05/_1294200000_5amsl7.pdf), corresponding to M1 and M2 of typical circuit below.
As replied on this question (Over current protection for a 1-cell battery), the overcurrent protection is probably set up for 3A (25mohm ron of mosfets).
I would like to "decrease" the overcurrent protection up to 5A without losing the overdischarge protection. My options are:
either replacing the dual mosfets. But I can't find any SOT23-6L with Ron=10mohm. 25mohm seems to be the minimum.
or shorten M1 to disable the overcurrent protection. But I think it will disable the overdischarge detection voltage.
How can I fix my problem?