mitsumi 2 cells li-ion/li-polymer battery secondary protection ic 2 cells li-ion/li-polymer battery secondary protection ic monolithic ic mm3480 series outline mm3480 series is a secondary protection ic for 2 serial cells li-ion/li-polymer rechargeable battery, which detects battery voltage by cell. with a timer circuit built-in, it is possible to set overcharge detection delay time. features (unless otherwise speci ed, topr=+25?) 1. range and accuracy of detection/release voltage overcharge detection voltage 4.0v to 4.5v, 5mv step accuracy?0mv 2. range of detection delay time overcharge detection delay time 1.2s to 10.0s selection from rank overdischarge detection delay time selection from 20ms, 24ms, 96ms, 125ms, 144ms discharging overcurrent detection delay time selection from 8ms, 12ms, 16ms, 20ms, 48ms charging overcurrent detection delay time selection from 4ms, 6ms, 8ms, 16ms short detection delay time 400? xed 3. low current consumption typ. 2.5?, max. 5.0? (vcell=3.5v) typ. 2.0?, max. 0.15? (vcell=2.3v) 4. absolute maximum ratings vdd pin vss - 0.3 to vss+28v ov pin vss - 0.3v to vdd+0.3v storage temperature - 55 to +125? operation temperature - 40 to +110? pin assignment top view pin no. function sot-26a 13 6 5 2 4 vss n.c. ov vdd vl vh 1 the input terminal of the positive voltage of vl cell, and the negative voltage of vh cell. 2 the input terminal of the positive voltage of vh cell. 3 the input terminal of the power supply of ic. 4 output of over charge detection. output type is open drain type of n-ch fet. 5 the input terminal of the ground of ic. 6 n.c. top view pin no. function sson-6a 5 64 13 2 vss ov n.c. vl vdd vh 1 the input terminal of the power supply of ic. 2 the input terminal of the positive voltage of vh cell. 3 the input terminal of the positive voltage of vl cell, and the negative voltage of vh cell. 4 n.c. 5 the input terminal of the ground of ic. 6 output of over charge detection. output type is open drain type of n-ch fet.
mitsumi 2 cells li-ion/li-polymer battery secondary protection ic selection guide (3000pcs/reel) please inquire to us, if you request a rank other than the above. product name package function overcharge detection voltage [v] overcharge detection dead time [ms] output type v cell ut ov MM3480ANRE sot-26a 2 cells 4.2200.030 103 n-ch fet open drain active high mm3480arre sson-6a 2 cells 4.2200.030 103 mm3480brre sson-6a 2 cells 4.3000.030 103 mm3480crre sson-6a 2 cells 4.3500.030 103 v dd vh vl n.c. ov 1k 100k v ss 0.1f 0.1f pack? pack+ 1k application circuit please there must be a possibility of the malfunction when there is a potential difference between vdd and vh, therefore between vdd and vh be short-circuited. the constant of the mark is a standard.
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