mitsumi protection of lithium ion batteries (for double-protect) pst75xx outline this ic is used for double-protection of lithium-ion batteries with one cell. some models can also be used for pulse charging. features 1. detection voltage accuracy (ta=25 c) 15 mv (pst7513, 7523) / ?0 mv (pst7512, 7528) 2. circuit current while on 30? typ. 3. circuit current while off (vcc at or below detection voltage) 4? typ. 4. circuit current while off (vcc=2.000v) 1? typ. 5. output current while on - 100? max. 6. delay time (ctc=0.015?, r l =100k ? ) 200 ms typ. package sot-25 (mini mold) applications pin assignment block diagram ic for double-protection of lithium-ion batteries with one cell. 123 54 sot - 25 protection of lithium ion batteries (for double-protect) monolithic ic pst75xx series mitsumi 1 gnd 2 sub 3 tc 4 v out 5 v cc note 2 : the pin 2 this product is sub, so connect the pin to ground.
mitsumi protection of lithium ion batteries (for double-protect) pst75xx absolute maximum ratings (ta=25?) mitsumi pin description recommended operating conditions electrical characteristics (except where noted otherwise, ta=25?) models listed pst7513 pin no. pin name functions 1 gnd gnd pin 2 sub sub pin 3 tc delay time establish pin 4 v out reset signal output pin 5 v cc v cc pin / detection voltage pin item symbol ratings unit storage temperature t stg - 40~+125 c operating temperature t opr - 25~+75 c supply voltage v cc max. - 0.3~+12 v allowable loss pd 150 mw item symbol ratings unit operating temperature t opr - 25~+75 c operating voltage v op 0~+12 v item symbol measurement measurement conditions min. typ. max. unit circuit detection voltage v sd 1v cc =l h r l =100k ? 4.120 4.135 4.150 v release voltage v sr 1v cc =l h l r l =100k ? 4.100 4.125 4.145 v hysteresis voltage vs vs=v sd - v sr 51020mv detection voltage vs/ t 1 r l =100k ? ta= - 25~+75 ? ?.01 %/ c temperature coefficient high-level output voltage v oh 1v cc =4.20v r l =100k ? 3.800 4.150 v output leakage current i ol 1v cc =4.020v ?.1 ? circuit current at on time i cch 1v cc =4.200v r l = 30 50 ? circuit current at off time 1 i ccl 11 v cc =4.020v r l = 46 a circuit current at off time 2 i ccl 21 v cc =2.000v r l = 1 1.5 ? delay time t plh * 2r l =100k ? c tc =0.015? 140 200 260 ms "l" transmission delay time t phl * 2r l =100k ? c tc =0.015? 1.1 3.5 ms output current at on time i oh 1v cc =4.200v r l =0 ? - 100 ? note : t plh : v cc =3.870v 4.370v t phl : v cc =4.370v 3.870v
mitsumi protection of lithium ion batteries (for double-protect) pst75xx mitsumi measuring circuit (1) (2) a: dc amperemeter v: dc voltmeter crt: oscilloscope input pulse vsd typ.+0.25v 0v vsr typ. - 0.25v
mitsumi protection of lithium ion batteries (for double-protect) pst75xx mitsumi timing chart v cc vsd v cc tc v out t plh t plh t plh t plh 0.4v max. vs application circuit (1) over charge detecting circuit (p-mos fet control)
mitsumi protection of lithium ion batteries (for double-protect) pst75xx (2) over charge detecting circuit (n-mos fet control) characteristics 0.0001 0.001 0.01 0.1 1 0.01 0.1 1 10 t plh (s) c tc ( f) delay time (t plh ) vs c tc characteristics 0.0001 0.001 0.01 0.1 1 0.1 1 10 100 t plh (ms) c tc ( f) l transmission delay time (t phl ) vs c tc characteristics delay time (t plh ) . = . 13.33 c tc (s) c tc : ? "l" transmission delay time (t phl ) . = . 73.35 10 - 3 c tc (s) c tc : ? note: the above are representative, not guaranteed values.
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