mitsumi 2 cells li-ion/li-polymer battery protection ic 2 cells li-ion/li-polymer battery protection ic monolithic ic mm3220 series outline the mm3220 series are protection ic using high voltage cmos process for overcharge, overdischarge and overcurrent protection of the rechargeable lithium-ion or lithium-polymer battery. the overcharge, overdischarge and discharging overcurrent protection of the rechargeable two-cell lithium-ion or lithium- polymer battery can be detected. in addition, the ic has a built-in timer circuit (for each detection delay time), so that the protection circuitry can be comprised with fewer external components. features (unless otherwise speci ed, topr=+25?) 1. range and accuracy of detection/release voltage overcharge detection voltage 4.125v to 4.3v, 5mv steps accuracy20mv accuracy25mv (topr= - 5 to +60c) overcharge release voltage 3.9v to 4.5v, 50mv steps accuracy30mv overdischarge detection voltage 2.0v to 3.2v, 50mv steps accuracy35mv overdischarge release voltage 2.0v to 3.2v, 50mv steps accuracy100mv discharging overcurrent detection voltage +100mv to +220mv, 5mv steps accuracy10mv charging overcurrent detection voltage - 100mv to - 300mv, 10mv steps accuracy20mv short detection voltage 0.9v or 1.1v accuracy100mv 2. range of detection delay time overcharge detection delay time selection from 0.25s, 1.0s, 1.15s overdischarge detection delay time selection from 12ms, 20ms, 128ms, 144ms discharging overcurrent detection delay time selection from 6ms, 9ms, 12ms, 48ms, 256ms charging overcurrent detection delay time selection from 4ms, 6ms, 8ms, 16ms short detection delay time 400s ? xed 3. 0v battery charge function selection from "prohibition" or "permission" 4. low current consumption normal mode typ. 4.0a, max. 8.0a stand-by mode max. 0.1a 5. absolute maximum ratings vdd pin vss - 0.3v to +12v cout pin and v - pin vdd - 28v to vdd+0.3v dout pin vss - 0.3v to vdd+0.3v storage temperature - 55 to +125c operation temperature - 40 to +85c top view pin no. function sot-26a 13 6 5 2 4 vdd vss vbl v- dout cout 1 output of overdischarge detection. output type is cmos. 2 output of overcharge detection. output type is cmos. 3 input terminal connected to charger negative voltage. 4 input terminal of the low side cell. 5 input terminal of the high side cell. supply terminal. 6 vss terminal. connected to ground pin assignment
mitsumi 2 cells li-ion/li-polymer battery protection ic selection guide (3000pcs/reel) please inquire to us, if you request a rank other than the above. product name package detection / release voltage 0v battery charge function delay time combination overcharge detection voltage [v] overcharge release voltage [v] overdischarge detection voltage [v] overcurrent detection voltage on discharging 1 [v] overcurrent detection voltage on discharging 2 [v] overcurrent detection voltage on harging [v] short detection voltage [v] vdet1h vdet1l vrel1h vrel1l vdet2h vdet2l vdet3-1 vdet3-2 vdet4 vshort mm3220b01nrh sot-26a 4.300 4.100 2.000 0.220 -- 0.90 permission 3 MM3220C01NRH sot-26a 4.300 4.100 2.000 0.085 0.450 - 0.90 permission 4 mm3220c02nrh sot-26a 4.300 4.100 2.000 0.100 0.200 - 0.90 permission 5 mm3220c03nrh sot-26a 4.300 4.100 2.000 0.100 0.200 - 0.90 permission 6 mm3220d01nrh sot-26a 4.250 4.100 3.000 0.200 -- 0.90 permission 7 mm3220f01nrh sot-26a 4.225 4.075 2.550 0.200 -- 0.90 permission 7 mm3220g01nrh sot-26a 4.290 4.050 3.000 0.200 -- 0.200 1.10 permission 2 mm3220h01nrh sot-26a 4.225 4.075 3.000 0.200 -- 0.200 1.10 permission 7 mm3220h02nrh sot-26a 4.300 4.150 2.400 0.200 -- 0.200 1.10 prohibition 7 mm3220h03nrh sot-26a 4.250 4.100 3.200 0.200 -- 0.200 1.10 permission 7 mm3220j01nrh sot-26a 4.275 4.275 2.500 0.085 -- 0.060 0.30 prohibition 8 mm3220z01nrh sot-26a 4.300 4.100 2.000 0.100 0.180 - 0.90 permission 9 123456789 overcharge detection delay time tvdet1 1.0s 1.0s 1.0s 1.15s 1.0s 1.0s 1.15s 0.25s 1.0s overdischarge detection delay time tvdet2 128ms 128ms 12ms 10.8ms 12ms 12ms 144ms 20ms 12ms overcurrent detection delay time on discharging 1 tvdet3-1 12ms 12ms 12ms 10.8ms 48ms 256ms 9ms 6ms 256ms overcurrent detection delay time on discharging 2 tvdet3-2 4ms -- 0.5ms 4ms 2.5ms -- 2.5ms short detection delay time tshort 400s 300s 400s 400s 400s 400s 300s 400s 400s delay time combination
mitsumi 2 cells li-ion/li-polymer battery protection ic v dd vbl c2 0.1f v ss v? c out d out c1 0.1f r3 2.2k r1 330 cell 1 cell 2 pack? pack+ c3 0.1f c4 0.1f r2 330 application circuit r1 , c1 , r2 , c2 stabilize a supply voltage ripple. however, r1 is enlarged, the detection voltage shifts by voltage when current consumption ows into r1. please decide it after con rming the characteristic. moreover, adjust the value of c1 , c2 to 0.01? or more to do the stability operation, please. r1 and r3 resistors are current limit resistance if a charger is connected reversibly or a high-voltage charger that exceeds the absolute maximum rating is connected. r1 and r3 may cause a power consumption will be over rating of power dissipation, therefore the `r1+r3` should be more than 1k . moreover, if r3 is too enlarged, the charger connection release cannot be occasionally done after the overdischarge is detected, so adjust the value of r3 to 10k or less, please. in the state of overdischarge, the current ows through overdischarge pull-up resistance built into between vdd terminal and v- terminal when the charger is connected. as a result, current that ows into vdd terminal increases. when current increases, the voltage is generated in r1. and hysteresis might be caused. please use it after con rming the characteristic. c3 and c4 capacitors have effect that the system stability about voltage ripple or imported noise. after check characteristics, decide that these capacitors should be inserted or not, where should be inserted, and capacitance value, please.
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