The 8205A is a dual N-channel MOSFET in a common drain configuration, it is a custom tailored MOSFET IC for battery management applications.
According to the FS8205A (Fortune Semiconductor Corporation) datasheet I am looking at, for VGS=2.5V its RDS(ON) is 27/35mΩ (typ/max).
The DW01A battery protection IC usually found paired with 8205As uses 150mV typical overcurrent protection voltage, translating into a typical peak current handling value of 5.55͡6A (150mV/27mΩ) for 8205As at that dropout, dissipating 0.83͡3W (208°C/W on minimum copper pad for this IC; ouch!).
All of this being said, I believe up to 2.5A per 8205A is a safe bet without incurring in too much of a thermal loss (0.16875W).
Typical overdischarge protection voltage: 2.4V. Great for high drain.
Having heard more than once about issues with “mech” autofires, you may want to peek at these:
Link: 1S 3.7V 18650 Lithium Battery 15A Charge Protection Board 6MOS Spot Welding Para @ qianer-store
4 of these boards in parallel could be a nice protective device you could mod your mech mods with for you to be autofire or whatever other shortcircuit mishap safe, at least for those of you burst/pulse diehards.
This, of course, is aimed for the DIY folks. I don't really know where would you fit the boards, yet I believe you could fit some plus a ∅18/21mm cell inside a ∅26mm tube.
Well, just in case some of you may find this worthwile.
Cheers
According to the FS8205A (Fortune Semiconductor Corporation) datasheet I am looking at, for VGS=2.5V its RDS(ON) is 27/35mΩ (typ/max).
The DW01A battery protection IC usually found paired with 8205As uses 150mV typical overcurrent protection voltage, translating into a typical peak current handling value of 5.55͡6A (150mV/27mΩ) for 8205As at that dropout, dissipating 0.83͡3W (208°C/W on minimum copper pad for this IC; ouch!).
All of this being said, I believe up to 2.5A per 8205A is a safe bet without incurring in too much of a thermal loss (0.16875W).
Typical overdischarge protection voltage: 2.4V. Great for high drain.
Having heard more than once about issues with “mech” autofires, you may want to peek at these:
Link: 1S 3.7V 18650 Lithium Battery 15A Charge Protection Board 6MOS Spot Welding Para @ qianer-store
4 of these boards in parallel could be a nice protective device you could mod your mech mods with for you to be autofire or whatever other shortcircuit mishap safe, at least for those of you burst/pulse diehards.
This, of course, is aimed for the DIY folks. I don't really know where would you fit the boards, yet I believe you could fit some plus a ∅18/21mm cell inside a ∅26mm tube.
Well, just in case some of you may find this worthwile.
Cheers
