21 lithium ion battery protection ic (for 1-cell) pin configurations features ? internal high-accuracy voltage detection circuit ? over charge detection voltage 4.00 v 25 mv to 4.60 v 25 mv 5 mv- step ? over charge release voltage 3.70 v 50 mv to 4.60 v 50m v 5 mv- step (the over charge release voltage can be selected within the range where the difference from over charge detection voltage is 0 to 0.3 v) ? over discharge detection voltage 1.70 v 80 mv to 2.50 v 80 mv 50 mv- step ? over discharge release voltage 1.70 v 100 mv to 3.50 v 100 mv 50 mv - step (the over discharge release voltage can be selected within the range where a difference from over discharge detection voltage is 0 to 1.0v) ? over current detection voltage 1 0.06 v 20 mv to 0.30 v 20 mv 5 mv-step ? high input-voltage device (absolute maximum rating: 18 v) ? wide operating voltage range: 1.5 v to 16 v ? the delay time for every detection can be set via an external capacitor. each delay time for over charge detection, over discharge detec- tion, over current detection are proportion of hundred to ten to one. or proportion of fifty to ten to one. ? two over current detection levels (protection for short-circuiting) ? internal auxiliary over voltage detection circuit (fail safe for over voltage) ? internal charge circuit for 0v battery (unavailable is option) ? low current consumption operation 7.5 m a typ. 13.7 m a max. (-40 to +85 c) power-down mode 0.2 na typ. 0.14 m a max. (-40 to +85 c) ? msop package (8-pin) 4.0 mm x 2.95 mm s-8231a/b series selection guide *1) without over charge detection / release hysteresis. *2) both charging and discharging will be unable when over charge detected. (over charge lock type) *3) in the range between 0?c and 50?c, an accuracy of detection volt- age is assured as 30mv. the 8231 is a series of lithium-ion rechargeable battery pro- tection ics incorporating high-accuracy voltage detection circuits and delay circuits. it is suitable for a single-cell lithium-ion battery pack. sens 1 8 v cc do 2 7 nc co 3 6 ict vm 4 5 top view v ss 8-pin msop model/item s-8231aafn-caa-t2 s-8231abfn-cab-t2 s-8231acfn-cac-t2 s-8231adfn-cad-t2 s-8231aefn-cae-t2 s-8231agfn-cag-t2 s-8231ahfn-cah-t2 s-8231aifn-cai-t2 s-8231ajfn-caj-t2 s-8231akfn-cak-t2 s-8231alfn-cal-t2 S-8231AMFN-CAM-T2 s-8231anfn-can-t2 s-8231aofn-cao-t2 s-8231aqfn-caq-t2 s-8231arfn-car-t2 s-8231asfn-cas-t2 s-8231atfn-cat-t2 s-8231aufn-cau-t2 s-8231avfn-cav-t2 s-8231awfn-caw-t2 s-8231axfn-cax-t2 s-8231ayfn-cay-t2 s-8231bafn-cca-t2 s-8231bbfn-ccb-t2 4.25 4.35 4.25 4.25 4.25 4.25 4.35 4.25 4.25 4.25 4.295 4.25 4.35 4.295 4.20 4.20 4.12 4.35 4.28 4.28 4.28 4.295 4.35 4.18 *3 4.18 *3 4.05 4.10 4.05 4.05 3.95 4.05 4.28 4.05 *2 4.05 4.05 4.20 4.05 4.10 4.295 *1 4.10 4.10 4.12 *1 4.10 4.05 4.05 4.18 4.295 *1 4.28 3.98 4.08 2.30 2.30 2.30 2.30 2.30 2.30 2.30 2.30 2.30 2.30 2.50 2.30 2.30 2.30 2.30 2.30 2.30 2.30 2.30 2.30 2.30 2.30 2.30 2.60 2.30 2.70 3.00 2.50 2.50 3.00 2.70 2.80 2.70 2.50 2.50 3.00 2.70 3.00 3.00 2.50 2.50 2.50 3.00 2.70 2.70 2.90 3.00 2.80 2.90 2.90 0.100 0.100 0.120 0.240 0.100 0.150 0.100 0.150 0.120 0.240 0.150 0.130 0.100 0.300 0.200 0.100 0.200 0.250 0.130 0.130 0.080 0.300 0.100 0.110 0.110 1.0 1.0 0.5 0.5 1.0 1.0 1.0 1.0 0.5 0.5 1.0 1.0 0.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 available available unavailable unavailable available available available available available available unavailable unavailable unavailable unavailable unavailable unavailable unavailable available available unavailable unavailable unavailable available available availabl 1.24 1.24 1.24 1.24 1.24 1.24 1.24 1.24 1.24 1.24 1.10 1.24 1.24 1.10 1.24 1.24 1.10 1.24 1.24 1.24 1.24 unavailable unavailable 1.24 1.24 accuracy differs depending on products. ?5mv accuracy ?0mv accuracy ?0mv accuracy ?00mv accuracy ?0mv accuracy ?0mv accuracy ?0mv accuracy ?00mv accuracy ?0mv accuracy a series b series over charge detection voltage (v) over charge release voltage (v) over discharge detection voltage (v) over discharge release voltage (v) over current detection voltage over charge detection delay (c=0.047?)(sec) 0v battery charging function final over charge magnification change in the detection voltage is available in products other than the above listed ones. contact the sii semiconductor produ cts sales department. ] please design all applications of s-8231a/b series with safety in mind.
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