1L0&G21L00+#%DWWHULHVn#&KDUJHU
3URWHFWRU#,FV
5877315[[$#6(5,(6
$33/,&$7,21#0$18$/
NO. EA-070-0006
Ni-Cd/Ni-MH Batteries’ Charger Protector Ics
5877315[[$#6(5,(6
OUTLINE
7KH#5877315[[$#6HULHV#DUH#SURWHFWLRQ#,&V#IRU#FKDUJHUV#RI#5#VHULDO#1L0&G21L00+#EDWWHULHV#E\#&026#SURFHVV1#)RU
H[DPSOH/#GHVSLWH#D#FKDUJHU#LV#H[FOXVLYHO\#XVHG#IRU#1L0&G#RU#1L0+#UHFKDUJHDEOH#EDWWHULHV/#LQ#FDVH#WKDW#D#XVHU#ZRXOG#WU\
WR#FKDUJH#$O00Q#EDWWHULHV/#WKH#587731#6HULHV#FDQ#GHWHFW#RYHU0YROWDJH#DQG#KDOW#D#FKDUJHU#FXUUHQW1##:KHQ#WKH#FKDUJHU
PXVW# FKDUJH# RYHU0GLVFKDUJH# FHOOV/# FKDUJHU# FXUUHQW# LV# FRQWUROOHG# ZLWK# SXOVH# E\# ZD\# RI# D# VZLWFKLQJ# FRQWUROOHU# LQ# WKH
5877315;;$#6HULHV/#WKHUHIRUH#VWUHVV#DJDLQVW#FHOOV#FDQ#EH#UHGXFHG1
(DFK#RI#WKHVH#,&V#LV#FRPSRVHG#RI#2YHU0YROWDJH#GHWHFWRUV#+9'4/#9'6,/#/RZ0YROWDJH#GHWHFWRUV#+9'5/#9'7,/#DQ#RV0
FLOODWRU#FLUFXLW/#D#UHIHUHQFH#XQLW/#D#GHOD\#FLUFXLW/#DQG#D#ORJLF#FLUFXLW1#:KHQ#FKDUJLQJ#YROWDJH#FURVVHV#WKH#GHWHFWRU#WKUHVK0
ROG# IURP# D# ORZ# YDOXH# WR# D# YDOXH# KLJKHU# WKDQ# 9
'(74# RU#
9
'(76
/#
WKH# RXWSXW# RI# 2
87
#
SLQ/# WKH# RXWSXW# RI# RYHU0YROWDJH# GHWHF0
WRUV29'429'6/#VZLWFKHV#WR#´/µ1# 'XULQJ#FKDUJHU#F\FOH/#HYHQ#LI#RQO\#RQH#RI#9'4#DQG#9'6#GHWHFWV#2YHU0YROWDJH/#DIWHU
LQWHUQDOO\#IL[HG#GHOD\#WLPH#SDVVHV/#2XW#SLQ#EHFRPHV##´+µ#DQG#KDOW#D#FKDUJHU#FXUUHQW#E\#WXUQLQJ#RII#DQ#H[WHUQDO#313
WUDQVLVWRU1#$IWHU#GHWHFWLQJ#RYHU0YROWDJH/#WKH#9'4#FDQ#EH#UHVHW#ZKHQ#WKH#&HOO04#YROWDJH#EHFRPHV#ORZHU#WKDQ#´9
5(/4
µ#DQG
WKH#&HOO5#YROWDJH#LV#DOVR#ORZHU#WKDQ##´9
5(/6
µ/#DIWHU#WKH#LQWHUQDOO\#IL[HG#GHOD\#WLPH#SDVVHV/#2XW#SLQ#EHFRPHV#WR#´/µ#OHYHO
DQG#WXUQ#RQ#DQ#H[WHUQDO#313#WUDQVLVWRU#DQG#PDNH#WKH#FKDUJHU#DFWLYH1
:KHQ#FHOOV#DUH#FRQQHFWHG#WR#WKH#FKDUJHU#DQG#HYHQ#LI#RQH#RI#FHOOV·#YROWDJH#FURVVHV#D#GHWHFWRU#WKUHVKROG#IURP#D#KLJK
YDOXH#WR#D#YDOXH#ORZHU#WKDQ#9
'(75
#RU#9
'(77
/#WKH#2XW#SLQ#EHFRPHV#SXOVH#FKDUJH#PRGH1#7KH#IUHTXHQF\#LV#43N+]#DQG#210
'XW\#LV#43(1
'XULQJ#SXOVH#FKDUJH#PRGH/#ERWK#&HOO04#DQG#&HOO#UHDFKHV#WR#5HOHDVHG#9ROWDJH#RI#/RZ09ROWDJH#RU#9
5(/5
#RU#9
5(/7
/#2XW
SLQ#EHFRPHV#´/µ#DQG#FKDUJHU#UHWXUQV#WR#QRUPDO#FKDUJLQJ#PRGH1
2XWSXW#W\SH#RI#2
87
#SLQ#LV#&0261#80SLQ/#6275608#LV#DYDLODEOH1
FEATURES
•
/RZ#VXSSO\#FXUUHQW
111111111111111111111111111111111111111111111111111111$W#1RUPDO#&KDUJH#0RGH#+9
''
9
6(164
5179
9
6(165
4159,
/
7\S1#513—$
$W#3XOVH#&KDUJH#0RGH#+9
''
9
6(164
4159
/
•
+LJK#DFFXUDF\#GHWHFWRU#WKUHVKROG111111111111111111111111111111112YHU0YROWDJH#GHWHFWRU
/RZ0YROWDJH#GHWHFWRU
/RZ0YROWDJH#GHWHFWRU#WKUHVKROG
•
%XLOW0LQ#2XWSXW#'HOD\#FLUFXLW#RI#2YHU0YROWDJH#'HWHFWRUV
•
5#0RGHV#H[LVW 1111111111111111111111111111111111111111111111111111111111111111RUPDO#&KDUJH#0RGH#2#3XOVH#&KDUJH#0RGH,
•
6PDOO#SDFNDJH
11111111111111111111111111111111111111111111111111111111111111162705608280SLQ
9
6(165
3199,
7\S1#813—$
“83P9
“83P9
31;9#0#4139#VWHS#RI#31389
W
53PV
•
9DULHW\#RI#GHWHFWRU#WKUHVKROG
1111111111111111111111111111111111111112YHU0YROWDJH#GHWHFWRU#WKUHVKROG 4189#0#41;9#VWHS#RI#31389
1
R5440N2xxA
APPLICATIONS
•
1L0&G/#1L00+#EDWWHULHV#&KDUJHU#SURWHFWRU
BLOCK DIAGRAM
V
DD
2
SENS1
1
3
OUT
VD1
Delay
VD2
SENS2
5
VD3
OSC
VD4
4
GND
2
R5440N2xxA
SELECTION GUIDE
,Q#WKH#5877315[[$#6HULHV#IRXU#RI#WKH#LQSXW#WKUHVKROG#IRU#2YHU0YROWDJH4/#5/#/RZ0YROWDJH6/#DQG#7#GHWHFWRUV#FDQ#EH
GHVLJQDWHG1
3DUW#1XPEHU#LV#GHVLJQDWHG#DV#IROORZV=
5877315;;$0;;
↑ ↑ ↑
D E F
Code
D
E
F
Description
6HULDO#1XPEHU#IRU#WKH#587731#6HULHV#GHVLJQDWLQJ#LQSXW#WKUHVKROG#IRU#RYHU0YROWDJH4/#5/#/RZ0
YROWDJH6/#7#GHWHFWRUV#DV#ZHOO#DV#K\VWHUHVLV#UDQJH#IRU#WKRVH#GHWHFWRUV1
'HVLJQDWLRQ#RI#YHUVLRQ#V\PEROV
7DSLQJ#7\SH=#75#+UHIHU#WR#7DSLQJ#6SHFLILFDWLRQ,
←3DUW#1XPEHU
PIN CONFIGURATION
5
4
1
2
3
PIN DESCRIPTION
Pin No.
4
5
6
7
8
Symbol
6(164
9
''
2
87
*1'
6(165
Pin description
3RVLWLYH#,QSXW#SLQ#RI#&HOO041
3RZHU#VXSSO\#SLQ1#6XEVWUDWH#9ROWDJH#RI#WKLV#,&1
2XWSXW#3LQ#IRU#([WHUQDO#VZLWFK#GULYH/#&026#RXWSXW1
*URXQG#3LQ#RI#WKLV#,&1
3RVLWLYH#,QSXW#SLQ#RI#&HOO051
3
R5440N2xxA
ABSOLUTE MAXIMUM RATINGS
9
66
39
Symbol
9
''
9
6(164
9
6(165
9
287
3
'
7RSW
7VWJ
6XSSO\#YROWDJH
,QSXW#9ROWDJH
6(164#SLQ#RI#3RVLWLYH#LQSXW#RI#&HOO04
6(165#SLQ#RI#3RVLWLYH#LQSXW#RI#&HOO05
2XWSXW#YROWDJH
2
87
#SLQ
3RZHU#GLVVLSDWLRQ
2SHUDWLQJ#WHPSHUDWXUH#UDQJH
6WRUDJH#WHPSHUDWXUH#UDQJH
0316#WR#9
''
#.316
483
073#WR#;8
088#WR#458
9
P:
ƒ&
ƒ&
0316#WR#9
''
#.316
0316#WR#9
''
#.316
9
9
Item
Ratings
0316#WR#45
Unit
9
ABSOLUTE MAXIMUM RATINGS
$EVROXWH#0D[LPXP#UDWLQJV#DUH#WKUHVKROG#OLPLW#YDOXHV#WKDW#PXVW#QRW#EH#H[FHHGHG#HYHU#IRU#DQ#LQVWDQW#XQGHU#DQ\#FRQ0
GLWLRQV1#0RUHRYHU/#VXFK#YDOXHV#IRU#DQ\#WZR#LWHPV#PXVW#QRW#EH#UHDFKHG#VLPXOWDQHRXVO\1#2SHUDWLRQ#DERYH#WKHVH#DEVR0
OXWH#PD[LPXP#UDWLQJV#PD\#FDXVH#GHJUDGDWLRQ#RU#SHUPDQHQW#GDPDJH#WR#WKH#GHYLFH1#7KHVH#DUH#VWUHVV#UDWLQJV#RQO\#DQG
GR#QRW#QHFHVVDULO\#LPSO\#IXQFWLRQDO#RSHUDWLRQ#EHORZ#WKHVH#OLPLWV1
4