ETC M62241FP

.，，眼睁醉蜘t且
体ttF
vp
反应
''bL
圃'帽"哦、
'
功阜器件~周
〈之 ilii 奄保 m 斗 f 月~
POWtB UJVlt APl'tlCAt lØJV
M62241FP 电池充电控制器 IC 及应用
毛兴式张伟-
摘
要
日本二楚 I l!.气公叶生产的 M62241 FP 111 j也光电器控制 rc ，具有光电控制和温度检测及过电流/过
1也压等保护功能，并内坐 LED 驱动器以捕示光电状态。 M62241FP 的仨耍应用是睐窝电话、带摄像
机的 VCR .&:ìJll川 111-[- 院备先 I l!.器，月二 11JèJl: 远合 'tlH 向 -f 山地充电器控制。
关键词
电池充电控制器
自动撒测保护 M6224lFP
1 51 言
问 62241FP 的内部结构、引脚功能及
2
'
特点
M62241FP 是为控制电池充电器专门 i是计的 I'(l 片
IC ì复控制器 rC1吁书控制光 I l!. 'rI，'i 耍的模拟 i 包怖和 I (.J"
M62241FP 采用 24 脚 P2Q-A 封装，罔 l 为 Jt 引
j若控制迦辆电路。 M62241FP 不仅履行光电控制，而
且具有电池温度检测、过电流与过电压保护及安乍
脚排列及内部结构桩阁。
去 1
叶时等功能。 M6224lPF 与较少址的元件相组合，很
CC
M62-24i J-<' P 的引脚功能。
M62241FP 的 J:. 要特点如下:
容易构筑高件能的饵离子电池充电器。
RC
JIJ IH 了
LED
事
CHG
VnH
REFOII
GND L二
PC
逻辑电路
ADJ ,
RC
队)
这盯
利进
命
( b)
国
八 DJ吧!
像设
八口 1 ，
1，
τK
川!
巨用
REF"
作;迦
",,
工上郎
计压内
民电为·
·的··器
低锡
样振
REF"
~I 脚排列
I竹吾I\t主构
M622/11 FP 的引脚排列及内部结构枢图
41
,
、
功阜器件 i 阉
il 倍~~最 w1 斗 f 周
POWa:B Jmlt AI'P!lCAtlO~
表 1
脚号
符号
M62241FP 的引脚功能
输入 //0输) 出
功
古巴
电源(正电压)。
2
Vcc
V\lh,
3
GND
4
PC
5
SP(s+)
6
Sp(S-)
I
7
VB OtIT
O
8
TH
9
CHGS \V
O
驱动充电开关品休营。
10
THS
-
产生参考电压与 TH 脚电压相比较电路的接地脚。
11
I阳
检测l 输出电流，连接电容器，以用作恒流充电电路的相住补偿。
12
ADJo
设定过电流电平.作为参考的电压通过外部电阻分压器检测。
13
PGNU
功率地。
14
CC
O
15
16
RC
ADJ 1
。
17
ADJ2
设定 iEi武电流;作为参考的电压通过外部电阻分压器决定。
18
ADJ3
注定尤电终止电 ~"t ;作为参考的电压通过外部电阻分压器决定。
19
DCJK
检测 DC 插庄的连接。
20
CHG
21
LED
22
REFIN
23
REFoUT
24
VSIN
检测 it 配器输出电压、并 i主才是一只电容器‘用作恒压充屯控制电路的
相位补偿。
这样单元接地脚。
O
驱动反馈尤搞合器。
监视电池电压，控制恒压充屯。
输出从电池电压得到的差动电压。
检测l 电池边接和电池温度。
通过 RC 振荡器为内部时钟设定频率。
设定快速充电电流;作为参考的 (ref cÏ- cntial) 电压由外部电阻分压
O
开关克电模式。
O
驱动 LEDo
'
控制作参考的电压。
O
提供作参考的电压。
恒压充电放大器输入;连接电容器为恒压充电电路提供相住补偿。
·内盟主输出开关驱动电跻;
eLED 驱动电路，指示光 I I:!.状态;
e f~ 电源电压检测系统复位电路;
·切!离子电池光 r1:!. 11~JJt检测;
·反馈至开关阀j'j器初级侧的 rl! lJi / 'g 流控制
电路.
·过电压与过电流检测与保护。
功能概述
I向电压址 16Y 。在兀 ~11 池连接lI.t 的电源电流 ( !cc) 为
10.5 -17.5 mA o REFo川肉l输出的作为充电器参考的屯
J:I~ 范围从1. 3V 到 3.1 V ，具体取决于 IC 内部基准带
Ilj;ll l!. JJi fll 从 lii主主IJREFOId肉J
1: ííJ 变 I l!. mL q~J. jilJ 的 I l!. 1Ii 。
输 1 1\参考 r t!.1J~典型的沟 rt!. i也先 rg 但在 It!. Bi 的 1/3 o'
M62241FB 剧J DC. J K 夕卡拉 JFX ，
川 l 作松柏!IJm~己P.:~
(Adapter) 赴何.ii t去。 {f 振 #j 器，知i 韦f'..r=3.4Ikllz 下，
远比:器检测lI.t fll] 1'1 12ms x 2=24ms 0 远配器 i主战检
测改变|除异常模式之外的所1f状态 .ill 入远配器模
式。近配器模式后接下来的模式，取决于先前模式。
在远配器模式 !UJ lìî] , )1已 I t!. ì也 ili 怯检测不理 l陈先 mr模
M62241FP 的应用电路简罔虫11 阁 2 所示。
式，而怯收 (take over) )~rlU也模式。 1 C J肉J 2 (飞I m:T)
充电器控制 TC 的电源电 JJi( 儿)为 4 - 15Y ，陆
外战也 I\l L 分以器，
JTJ 11: 检测 ~I: 通过 IC 控制远配棋也
;
3134
是噩噩
42
.
器决定.
·防过充电终 11: 寇 IH 器与指示注:时器;
3
,
回 EEEFt-z
功阜器件:&阉
tl 馆.保 2CrJl 斗 f 周
l'O\Vl:ß U.vlt API'!IUtIU
至远配器
付〕
、EEISE­
由出
电
至
η
16V
岛162241FP
10k
'
4700
困 2
M62241 FP 的应用电 J各 i奇围
阻!但 fil 低于 100k 0 ，电池i副主则被确认。电池连接
压。脚 19 (DCJK) 用作检测适配器 DC 连战。
M62241Pß 胸19 (SW) 驱动光电晶体位。!向l 门( 1I川
检测lI.tl同为 60ms x 2=120mso TC 的电池温度检测电
捡澜的输阳电流转快为电压通过 TC 内放大器放大。
路利用 -ttt 电|咀与热敏电阻之间的比率对电池瓶度
也压放大器的增益是 13 ，增益范围为 0- 2A (输入 rl1
检测后控制开关充电(电池 ifii 应检测时间是 60ms x
压从 0 到 O.2V) 。在充电期间，
IDEI 脚的检
庐山 Oms) 。异常视皮(过热或瓶度过低)检测使充电
测电压控制恒边电流。 rt!.流检视IJ 通过边按在低端 1-:
停止， )f: 开始 j且应保护模式。当无电池接入被检测
o. 1 0
后、同样会 1/ 1 11-- 充 I毡，.i11:入无电池连接模式。
TC 通过
(f.J 1 l!. 111L执行。 4 快边充 I l!. I :i7t1 流光 rl!.则通过边
怀)肉116 (AD.h) 与脚 17 (AD .J?)实现。远阳器过 1 \1流价
拙 111
rC ，肉1 12 (AD.J 0) }徨行，检视IJ 参考 I l!. J1i 由.ii拔 -f
AD.J 0 ，阳J 1-. 的两文电 IIJl之间的比的决边，恰相!IJII.t lÌ fj 沟
3s
x
(1 )在阳ii~~ (initial ization) 之后的功能
I l! i也立即 iii 接，低于
-2 "C: il;~ 应保护模式(低
jll); 寸 'C
4=12so
rc 阴124 (VRI~) IJ吻合 ì~llJ rl! Hi 施加重IJ rC 内控制电
路，控制光 rl! JUJlìîJ 的恒 kiilUHi 。 tiif!} 到 rl:!.池 111 压 J;~
2出后，从 IC 脚 5 (1γ) 乎J1J1f~1 (j (n-) J川主输入吨
关于 1íj:个 ifut 1.监控制，者I~带有捕后。
从)J!~I 7
(VBOI1I) 输:-1\ 0 IC 充分放大器的朋位足 lj3: \， Bon=lj3
( I'íl'- /1/1-) υli.]II.t. 从 I l!. t也 rl!. JI~ ~~}. flJ(t-J:XJ~J {E VBol' 1 JI月l
输 11 \1言，施加盖IJ VBI~ )lt41 ，以 }j业行和UJi 光 I I.!.卡;~HiIJ
0
Mß22 t1 IFR 能够检测 I I.!.池边怯歧 rl! t也 ilt 皮，月二 1:
要通过脚 8 (TH) 执行。只业~!.:i 1' 11 ，阳l 丰H .ìi格的热饭 I l!
- 13'C: 泊流充电模式(低温}; 13 "C5S'C: 快速充 rl!模式 :;5 'C - 60.'C :泊流充电模式
(If:iiIA);，尚于 60'C: j且应保护模式(高掘)。
(2) i且应保护悦式之后的功能(低 jfJ.. 保护)
I:~:j :}", -2'C :月流充电模式 uæi且) ;在顶'n.后
先 r1J. JF 怡。
(3) 手1:1H 流光 I l!模式(低jltt) 之后的功能
低于 -5 'C: j且应保护模式"高于 13'C: 快速
先 I l!院式。
43
事
功率器件是用
røWtB IIJVlt APP'ICAtlØ~
通信啻保 2C01 " 1 用
(4) 在快速充电模式之后的功能
低于 -28'C:
低于 10 "C :泪流充电模式(低 blah 高于 SS'C:
j旧世控制再l~lrr:
元 rt!池边怯模式。
涓流充电模式(高 ili! )。
(5) 在泪流充电模式之后的功能
低于 50'C: 快速充电模式;高于 60'C ，泪流
充电模式 (ì臼 1R) 。
(6) 在温度保护模式(高温)之后的功能
低于 5S'C: 泪流充电模式(/削品) ，在阪坦之后
充电开始。
也tf:
(7) 所有模式之后的功能
表2
个 ilnlI监门以 rl:!， 'I':;H)当的热墩屯 Illl 恍如1 求 2
所列。
M62241PP
1'111肉121 (LED) ((.j
每个温度对应的热敏电阻数值
~Ii. i}1J 输/11，马!司 i~J
夕l、古IS LED ，具体
的状态分别为:
者 3
M62241PP 模式
.
无电池
充电佟止 NG
等待
温度保护
AC 关断
关 ("II")
关 ("H")
关("1I "
开/关
开/关
关 ("11"
)
关 ("H")
开/关
关 ("H")
关 ("H")
关 ("H" )
关 ("H"
关 ("H")
关("11")
关("11" )
关 ("H")
关 ("H" )
Vchg
Vchg
Vchg
Vchg
Vchg
Vchg
Ychg
Vchg
Ychg
UL"
UL
"H"
"L"
UL"
快速充电
2月流元电 异常
开/关
开/关
开 ("L")
开 ("L")
关(呗")
SW( 脚)
开 ("L")
开 ("L")
V"
Vchg
Vchg
LED
li主配n.
连接
元电￥待
PC( 脚)
"L"
"L"
"H"
"L"
"L"
CC~句关
"H"
"H"
"L"
"L"
"L"
"L"
"L
n
"H"
"H"
"11"
"H"
"H"
"H"
"11"
"H"
"H"
时钟
工作
工作
工作
工作
工作
工作
工作
工作
工作
工作
工作
等待定时n.
:工作
工作
复位
复 4主
复位
复位
且位
复位
复位
复位
工作
显示与克
工作
工作
且 4主
复位
复 i主
复位
在位
且{主
立 i主
星位
是位
充电电流
ADJ.
:AD•.t.
i在配ß.检测
工作
工作
不理
工作
工作
工作
工作
工作
停止
工作
，工作
电池连接捡溃' 工 4年
工作
不足
不理
工作
工作
工你
工作
停止
工作
工作
过电 i血检测
停止
停止
不理
工作
停止
停止
停止
停止
停止
停止
停止
AC 电源
工作
工作
不足
工作
工作
工作
工作
工作
工作
工作
工作
过电压检溃"
停止
停止
停止
停止
不应
不应
不理
不应
停止
不应
工作
过放电检测
停止
停阜
停止
停阜
不理
不理
.r..作
不应
停止
不应
工作
电池温皮检测B
工作
工作
停止
停止
不理
不理
不应
工作
停止
不应
工作
IJ
'
F
"L"
(CCOFF)
i毒配ß.
充电开关
'
电定时ß.
-
关断检测
44
功阜器件是用
il馆@保 WI 斗 f 周
I'O\VtR U.Nlt APPI:IUtlO.N
适配器模式:关;无电池边接模式:关;充电模式:
rE 起作用外，检测被解除 (d
在段示期间寇时器计数一开/关，在显示之后也 11;1'器
"开" (oo) 指按边"关" (off) 是断开或关断。
计数 -Jf; 过放 rt!.模式
JF /关 ; i且应保护模式:
i 5charged)
的情况，
M62241FP 的操作程序罔如 l 罔 3 所示。
开/关;充电终 1 1:模式:关;先 rt!. NG 模式:关;异常
模式:关。 LED 开/关起 IH IJ;f间为:开 0.95 ，关 0.65 。
M62241Fr'出14(PC) 七的输出驱动光润合器
(Pc) 。在适配器模式 JUJ IÌ:lJ,
. ~1.过电流被检测，异
常模式则接收。 IC 的 PC 短路控制电路能使 PC 输出
.ìl1入\' CC 端，
Jf: 关|列初级电视( rl!流。在异常模式巾，
所 1i 输入不u 检测址不被顾 f边的，只H::!正位能从异常
模式网友。
如果开始光 111 之 I'，íj 较大的 I l! H~(voltagc O1a 扣­
rcd) 高于检测屯屈，
{f.等待之内íj 怯管 a 光电模式。
直到电池充电为， 1: ，则捋线等待。当 I l! H~.\::j+ 检视IJ
屯 lli时，拔收充电模式。在过放电检相~I !'(I.元电路巾，
H 充电检 1I 电 Hi 是 4V ，检测 IHlhJ 为 0.3s
x
4=1.2s 。
rc 内监过电压检测电路，检测门限电 l压
j亟i 为 l阳句饥协协
tι'EPOI
仰阳
'01'川，
'
果在充电刀开:始前的屯压 i高臼于该门限电!压:1五
i巨.l，则接管 NG
模式。过电压检测 IHI词为 30001s x 4=1.250 所谓
"阳口1I 不行戒不好 (No GO!此 No Good) 之忌。
{I: 光 rg 模式 '1' ，如果光 r\}. I l!.流低于检测 rl!.流，
则怯收光 r t!.终 11: 模式。充电终 1 1-.价柳l 依赖于获悍的
rl!. i班输 1110 尖 f 检测参考 I I1 JJ~ ， Ill .ìif.主 1二!即 18 (AD.J :1)
伫的电 I~ll之间的比率设在。|除在充电 lUJ Iì:îJ 外，先 rl!.
终 11'. 检测是不被Jill l味的。充电终 11: 检测 11'1'
60001s
司'
IlIJ'} j
x 8=4.8s 。
充电器控制 rc 内世址~1 J.t器 I t!.路，在电池边战之
后的等待 11.1' lìJJ 约为 3.2s ，尔后开始光 1 l!. 0 lf.J. ~T- ii: 11.1'
(.~ lJ;f IÌ IJ 1:1 ~H) 01 i n, {J:先 I l!. Jf 关从月: /关到 JF 显示之
亭
后开始计数。在泪流光电模式" ' ，显示 2也
川二引川时(.叶.1'器暂{停
U
i江
11
让如aus臼叫
cω) 叫计.数。
{f忧也 后咆，树昕阳
j川斤F二航始蜘刷刷、
ì 川忱
训
lìì\
敬 c rc 光 rl!. :也 l \it器的计 11中 1 J.t lìiJ 为 180001in ，在充 111
开始后计数到这个在 IHII'1'!Ì IJIH ，接收充电i\G 模式。
M62241 FP 1'('. 片电池充电器控制
3 所列。.
rc 的模式虫11 求
在表 3 巾的快应充电模式巾， LED 开/关直到
30 分钟为止，在 3001io 以后 LED 开。在泊流充电模
式巾，经 30min(f.J快退充电机:接收泪流模式， LEDJF 。
"Vchg" 为光电控制电 Hi; "停止"指检测器被复位
戎输入被 1，';1 起 (f i xcd)
围 3
M62241 凹的操作程序图
: "不:f1H" (disrcgard) 捎除功能
45
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
DESCRIPTION
The M62241FP is designed as 1chip Integrated Circuit
for controlling battery charger. This IC contains analog
circuits needed for controlling charge, and timesequential-control logic circuits. This IC has various
functions such as not only charge-controlling but also
battery temperature detection, protection against overcurrent / over-voltage, and safety timer. The combination
with some parts gives a charge circuit for Lithium -ion
battery easily.
PIN configuration (Top view)
VCC 1
Designed to operate at as low as 4V
CR oscillation circuit for internal logic
Terminating timer for preventing overcharge
30min. indicating timer
Main output switch drive circuit
LED drive circuit (1 system)to indicate charging status
System reset circuit for detecting the lowering of
supply voltage
Temperature detection for Lithium-ion battery
Voltage/current control for feedback to the primary side
of switching regulator
Various protections such as overvoltage detection at
charging, overcurrent detection at adaptor connection
RC CC
15
Power supply voltage
detection circuit
21 LED
BP 5
20 CHG
19 DCJK
VBOUT 7
18 ADJ3
TH 8
17 ADJ2
CHGSW 9
16 ADJ1
THS 10
15 RC
IDET 11
ADJ0 12
14 CC
13 PGND
Outline 24P2Q-A
Application
VCR with camera, cellular phone,
battery charger for general electronic
equipments.
LED
SW
CHG
21
9
20
LED
driver
output
SW driver
output
SW driver
14
Oscillator
22 REFIN
PC 4
BN 6
Block Diagram
1
23 REFOUT
GND 3
FEATURE
VCC
24 VBIN
VDET 2
VBIN 24
Adapter
connection
detection
circuit
VDET 2
Adapter
control
circuit
PC 4
19
DCJK
10
THS
Logic Circuit
Battery
temperature
detection
circuit
Voltage
control
circuit
Current
control
circuit
Charge
completion
detection
circuit
ADJ1 16
ADJ2 17
Over-current
detection
circuit
Voltage
amplifier
circuit
Reference voltage
regulator
23
22
11
REFOUT
REFIN
IDET
Over
voltage
detection
circuit
18
12
ADJ3 ADJ0
( 1 / 18 )
8
TH
7
VBOUT
6
B-
5
B+
Low
voltage
detection
circuit
Battery
voltage
detection
circuit
3
13
GND
PGND
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
DESCRIPTION OF TERMINALS
Pin No.
Functions
Sy m bol Input/Output
1
VCC
-
2
VDET
Input
3
GND
-
4
PC
Output
5
BP(B+)
Input
6
BN(B-)
Input
7
VBOUT
Output
Outputting the v oltage gained dif f erentially f rom the battery v oltage
8
TH
Input
Detecting the battery c onnection and the battery t emperature
9
CHGSW
Output
10
THS
-
11
IDET
Input
12
ADJ0
Input
13
PGND
-
14
CC
Output
15
RC
Output
16
ADJ1
Input
17
ADJ2
Input
18
ADJ3
Input
19
DCJK
Input
Detecting the connection of DC JACK.(including resistance f or pulled up)
20
CHG
Output
Switching charge mode
21
LED
Output
Driv ing LED(opened collector,including the circuit driv ing constant current)
22
REFIN
Input
Controlling the ref erential v oltage
23
REFOUT
Output
Prov iding the ref erential v oltage
24
VBIN
Input
Power supply
Detecting Adapter output v oltage and Connecting capacitor f or phase
compensation to the charge constant v oltage control circuit
The ground pin f or signal unit
Driv ing photo coupler f or f eedback(opened collector,including resistance
f or pulled up)
Monitoring the battery v oltage.Input the 1/3 battery v oltage gained
dif f erentially to control charge constant v oltage and to detect each
v oltages.
Driv ing charge SW transistor(opened collector,including the circuit driv ing
the constant current)
The ground pin f or the circuit generating the ref erential v oltage to compare
with TH pin v oltage
Detecting output current and Connecting capacitor f or phase compensation
to the charge constant current control circuit
Setting the current of ov er current.The ref erential v oltage is decided by
div iding external resistances.
The ground pin f or power unit
Setting f requency f or inside clock by CR oscillator
Setting quick charge current.The ref erential v oltage is decided by div iding
external resistances.
Setting trickle current.The ref erential v oltage is decided by div iding external
resistances.
Setting the charge completion current.The ref erential v oltage is decided by
div iding external resistances.
For inputting the charge constant v oltage Amp. and Connecting capacitor
f or phase compensation to the charge constant v oltage control circuit
( 2 / 18 )
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
Absolute Maximum Ratings
(Ta=25°C,unless otherwise noted)
Symbol
Ratings
Unit
Vccm x
16.0
V
Pd
1200
mW
Ktheta
-12.0
mW/ °C
Operating temperature
Topr
-20 to +75
°C
Storage temperature
Tstg
-40 to +125
°C
Vcc
4.0 to 15.0
V
CHGSW pin drive current
Idchgsw
50.0
mA
CHGSW pin low output voltage(Iol=30mA)
Vlchgsw
0.6
V
LED pin driving current
Idled
20.0
mA
LED pin low output voltage(Iol=10mA)
Vlled
0.6
V
PC pin driving current
Idpc
20.0
mA
PC pin low output voltage(Iol=10.0mA)
Vlpc
0.6
V
CHG pin driving current
Idchg
1.0
mA
CHG pin low output voltage(Iol=1.0mA)
Vlchg
0.6
V
Input pin input voltage range
Vin
0 to Vcc
V
Endurable voltage of open output interception
Voc
Vcc
V
REFOUT pin output voltage
Vrefout
1.3 to 3.1
V
REFOUT pin output current(Vrefout=3.1V)
Irefout
2.0
mA
Vdrefout
0.9
V
Parameter
Supply voltage
Power dissipation
Thermal
derating
Function Supply voltage range
REFOUT input/output voltage gap
THERMAL DERATING (MAXIMUM RATING)
1400
1200
FUNCTION OUTLINE
1000
800
600
400
200
0
25
50
75 100 125 150
OPERATING TEMPERATURE Topr(°C)
1)Adapter voltage control
2)Lithium Constant current/voltage charge control
3)Battery connect detection
4)Battery temperature detection
5)Battery voltage detection
6)Charge current detection
7)LED Indication
8)Timer
9)Adapter mode change
( 3 / 18 )
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
ELECTRICAL CHARACTERISTICS
(Vcc=9.0V, Vrefout=2.783V,Ta=25°C)
Block
Parameter
Sy m bol
Test Conditions
Circuit Current
Icc
No Battery c onnection mode
Detection v oltage of Supply Voltage
Vccrst
Adapter Voltage
Vadpt
Charge Protection Voltage
Vprot
Detection v oltage of O v er Voltage
Min.
Limits
Ty p. Max. Unit
10.5
14
17.5 mA
2.8
3.1
3.4
V
7.7
7.9
8.1
V
11.5
12
12.5
V
Vov
Apply ing v oltage between S+,S- 8.3
8.4
8.5
V
Detection v oltage of O v er Discharge
Vlv
Apply ing v oltage between S+,S- 3.7
4
4.3
V
REFIN-pin ref erential v oltage
Vref in
No connecting load
1.13
1.17
1.21
V
Charge Control v oltage
Vchg
PC pin output rev erses on
apply ing v oltage to VDET pin
8.3
8.35
8.4
V
No connecting load
2.454
2.53
2.606
V
2.081 2.149 2.213
V
Function check after Vcc is
bey ond Lim its Max.
Function check after Vcc is
bey ond Lim its Max.
PC pin output rev erses on
apply ing v oltage to VDET pin
Detection v oltage of Battery C onnection Vcon
Detection v oltage of t emperature
protection 1
Hysteresis width of Detection v oltage
of temperature protection 1
Detection v oltage of t emperature
protection 2
Hysteresis width of Detection v oltage
of temperature protection 2
Detection v oltage of t emperature
protection 3
Hysteresis width of Detection v oltage
of temperature protection 3
Detection v oltage of t emperature
protection 4
Hysteresis width of Detection v oltage
of temperature protection 4
Vt1
THS=0V
Vt1his
∆t=-5 to -2°C=3°C(±1°C)
Vt2
THS=0V
Vt2his
∆t=13 to 10°C=3°C(±1°C)
Vt3
THS=0V
Vt3his
∆t=55 to 50°C=5°C(±1°C)
Vt4
THS=0V
v t4his
∆t=60 to 55°C=5°C(±1°C)
PC pin output rev erses on
apply ing v oltage to ADJ1 pin
PC pin output rev erses on
apply ing v oltage to ADJ2 pin
45
67
89
1.708 1.789 1.865
52
81
101
V
106 mV
0.766 0.823 0.877
79
mV
V
112 mV
0.675 0.722 0.781
V
60
80
91
mV
1.33
1.4
1.47
V
0.4
0.44
0.48
A
Quick charge current
Irpd
Trickle charge current
Itri
Charge Completion current
If c
Apply ing v oltage to IDET pin
0.15
0.2
0.25
A
Adapter Ov er current
Ioc
Apply ing v oltage to IDET pin
1.67
1.81
1.95
A
DC JACK-pin H input v oltage
Vjkh
-
-
V
DC JACK-pin L input v oltage
Vjkl
Check to be in adapter mode, Vcc-0.7
apply ing v oltage
(Vcc-2.8 to Vcc-0.7) into
DCJK pin
Oscillator f requency
Foc
RC=91KΩ,CC=2200pF
3.37
3.64
3.91 KHz
Charge timer
Tchg
Foc=3.41KHz,Charge mode
1656
1800
1944 min.
Display t imer
Tdisp
Foc=3.41KHz,Charge mode
27.6
30
32.4 min.
( 4 / 18 )
-
Vcc-2.8 V
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
FUNCTIONAL DESCRIPTION
<Each voltages written in following are set in standard application circuit.>
1. Adapter Constant Voltage Control
VDET pin supplies this block with voltage to control voltages of both adapter and protection
during charge.Control reference voltage ,applied by REFOUT pin , is constant.
Output voltage is generated from dividing the adapter voltage by external two resistors
connected to VDET pin and the modification of the dividing ratio of these resistors by CHG pin
changes the voltage of Adapter/Charge.
2. Charge Constant Current Control block
IDET pin supplies this block with voltage to control constant current during charge and is
controlled directly by the voltage of 0.1 Ω resistance ,connected to low side,for the current
detection.Control referential voltage is set by ratio between external two resistors connected to
REFOUT pin.Buttery temperature detection control performs switching quick and trickle by
selecting ADJ pin as follows:.
Quick charge : ADJ1pin
Trickle charge : ADJ2pin
Adapter constant voltage control ,written in 1 clause, is capable of invalidating this control.
3. Charge constant voltage control block
VBIN pin supplies this block with voltage to control constant voltage during charging.
Output voltage of VBOUT pin,gained differentially from battery voltage,supplies to VBIN pin.
Control referential voltage ,applied from REFOUT pin, is constant.
4. Charge SW driving Circuit control block
This block controls SW pin,driving transistor for charging SW.
Charge off : SW=OPEN
Charge on : SW=L
5. Battery voltage differential gain block
Battery voltage input from B+/B- pin directly and outputs to VBOUT pin after differential gained.
The gain of Amplifier is 1/3
VBOUT=1/3(VB+ - VB-)
Input of OPAmp for differential gain or feedback resistance depends on external circuit element.
6. Output current & voltage Amplifier block
The voltage between GND and IDET pin is available to several detector after amplified.
The gain of this amplifier is 13.
The Gain Range:0 to 2A(Input voltage 0 to 0.2V) ->0.2 to 2.6V
( 5 / 18 )
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
7. Detection of battery connection /battery temperature
This block detects the battery connection and the battery temperature by the input voltage dividing
between thermistor inside battery package and resistances outside REFIN pin.
Each referential voltage for detection is set by dividing REFOUT pin voltage by inside resistances.
The dividing circuits are grounded to THS pin connected directly to - terminal of battery
to prevent input voltage of TH pin from changing by the current of external circuit.
<1> Battery connection detection
The battery connection is recognized in case the resistance of the thermistor connected to
TH pin is less than the following:
Thermistor resistance(Rth): less than approximately 100kΩ
Detecting timing is as follows:
60msec * 2 times =120msec(Foc=3.41KHz)
<2> Battery temperature detection
This block controls to switch charging after detecting the battery temperature by the dividing
ratio between resistance pulled up and thermistors.
Detecting timing is as follows:
60msec * 2 times =120msec(Foc=3.41KHz)
For further details,read the 20 clause.
8. Over discharge detection block
In case the voltage majored before starting to charge is less than the detection voltage,the over
discharge mode is taken over before waiting.It continues to wait until the battery charges from
external circuit and the charge mode is taken over after the voltage becomes more than the detection
voltage.The differential gain output voltage of the battery is majored at this block.
The referential voltage for detecting is set by the dividing ratio between resistors connected to the
REFOUT pin.
The Over Discharge detection voltage (V Blow) is 4.0V.
This detection is disregarded during charging.
The detection timing is as follows:
300msec *4 times = 1.2sec. (foc=3.41kHz)
9.Over Voltage detection block
NG mode is taken over ,in case the voltage majored before starting to charge is more than the
following voltage.The referential voltage for detecting is REFOUT output voltage.
The over detection voltage(Vbhigh) is VREFOUT.
This detection is disregarded during charging.
The detection timing is as follows:
300msec *4 times = 1.2sec. (foc=3.41kHz)
10 The charge completion detection block
The charge completion mode is taken over in case the charge current in charge mode is less than the
detection current.
This detection depends on the gained current output.
The referential voltage for detection is set by the dividing ratio between resistors connected to ADJ3
pin.This detection is discharged except during charging.
The detection timings is as follows:
600msec *8 times = 4.8sec. (foc=3.41kHz)
( 6 / 18 )
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
11.The Adapter Over Current mode
The Unusual mode is taken over in case the current majored in the adapter mode is less than
the detection current.
The referential voltage for the detection is set by the dividing ratio between the resistors
connected to ADJ0 pin.
The detection is disregarded except in adapter mode.
Detection timing is as follows:
3.0sec *4 times = 12sec. (foc=3.41kHz)
12. LED Driving block
This block controls LED driving pin by each mode.
Adapter mode
: off
No Battery Connection mode : off
Charge mode
: During Display Timer counting ~~~on/off
After Display Timer counting ~~~on
Over Discharge mode
: on/off
Temperature Protection mode : on/off
Charge Completion mode
: off
Charge NG mode
: off
Unusual mode
: off
*LED on/off timing is 1/1.5Hz(0.9sec. on/0.6sec. off) respectively.
13. The regulated referential power supply block
The charge of output REFOUT pin voltage depends on inside bandgap voltage as the reference
and the gained voltage of the changeable resistance connected to REFOUT pin.
This block uses REFOUT output voltage as reference and controls the charge constant voltage
and every reference both inside and outside.
REFOUT typical voltage : 1/3 of the battery charge constant voltage
14. Adapter detection block
The Adapter connection input switches the mode as follows:
OPEN(H) detection : Adapter connection
GND(L) detection : No Adapter connection
The detection timing is as follows:
12msec. * 2times = 24msec(Foc=3.41KHz)
15. Adapter mode control block
The detection of adapter connection changes all modes except unusual mode into adapter mode.
The Next mode after adapter mode depends on the previous mode.
Previous mode
->
Next mode
No connection
->
No connection
Charge
->
Charge(after initialization)
Over discharge
->
Charge(after initialization)
Temperature Protection
->
Charge(after initialization)
Charge Completion
->
Charge Completion
Charge NG
->
Charge NG
*The detection of No battery connecting during Adapter mode disregards the previous mode
and takes over No battery mode.
( 7 / 18 )
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
16. PC driving block
The control to the PC pin,for driving Photo Coupler, depends on each control of Adapter constant
voltage,Charge constant current and Charge constant voltage.
Vcc side : Photo Coupler off, output voltage rising
GND side : Photo Coupler on, output voltage falling
17.PC short control block
The Unusual mode is taken over in case the over current is detected during the Adapter mode.
This block is capable of fixing PC output into Vcc side and shutting down the primary power supply
current. All input and detection are disregarded in the Unusual mode. Only reset is capable of
returning from Unusual mode.
18.AC check detection block
AC Power off is recognized and Adapter mode is taken over, in case the PC pin voltage continues
more than the following voltage in cert ain period:
AC check voltage (Vacchk: Vcc-0.8V)
The detection timing is as follows:
60 msec. * 16times=960msec.(Foc=3.41KHz)
19. Timer Block
(1) Waiting timer after battery connection
This block pauses for following period from the battery connection detection to starting charge ,
so that every input is decided.
Waiting time : approximately 3.2 sec(Foc=3.41KHz)
(2) Display Timer
Counting the following time after starting to charge switches display from on/off to on.
Display timer : 30 minutes (Foc=3.41 KHz)
In trickle charge mode,this timer pauses to count. This timer resets counting to initialize before
charge restarting,in case the charge as counting or pausing stops because of the charge to the
adapter mode or the temperature protection mode.
Example of Display Timer
<1>In case charging starts in quick mode,
Counting End
Charging
Counting End
Quick Counting 30min |
|
on/off
on
Charge Completion
|
off
<2> In case quick mode starts ,then trickle mode is taken over after counting is end,
Mode Change
Counting end
Charge Completion
Charging
Quick Counting 30min | Quick Counting end | Trickle Counting end |
|
on/off
on
off
<3> In case charging starts in trickle mode,
Charging
Quick Counting of f
|
on/off
( 8 / 18 )
Charge Completion
|
off
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
<4> In case it returns quick mode after charging starts in trickle mode,
Charging
Mode Change
Counting End
Counting End
Quick Counting 30min
|
|
| Trickle of f
on/off
on
on/off
Charge Completion
|
off
<5> In case quick mode starts, then trickle mode is taken over and then quick mode restarts,
Charging Mode Change Mode Change
Counting End
Charge Completion
| Quick Counting | Trickle of f |Quick Counting(remaining time)
Counting
End
|
|
on/off
on/off
on/off
on
off
<6> In case quick mode starts,and then charging completes before counter is end,
Charging
Charge Completion
Quick Counting |
|
on/off
off
<7> In case trickle mode starts,and then charging completes before counter is end,
Charging
Charge Completion
| Quick Counting of f |
on/off
off
(3) Charge Timer
Charge NG mode is taken over after counting the following time after charge starts.
Charge timer : 1800 min.(Foc=3.41KHz)
Stop of the display timer makes the charge timer stop because the display timer sources
clock to charge timer as following figure.(In trickle mode,counting is pausing)
Source Clock
Display Timer
Charge Timer
SW
|
|
|
Trickle Pause
Initializing reset
This timer resets counting to initialize before charge restarting,in case the charge as
counting or pausing stops because of the change to the adapter mode or the temperature
protection mode.
20. Control by temperature during charging
<1> Variety of control
a . Charge current switch by battery temperature.
The battery temperature majored before or during charge switches the charge current to
quick or trickle.
b . Unusual temperature detection
The unusual temperature detection (overheat or super cooling) makes charging stop and
move Temperature protection mode.
c . No battery unplugging detection
No battery plugging detection during charging makes charging stop and move no battery
connection mode.
( 9 / 18 )
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
<2> Each control details
Each temperature controls have hysteresis.
a . Function after the initialization
Immediately battery connection
less than -2°C : Temperature Protection mode(low temperature)
-2°C to 13°C : Trickle Charge mode(low temperature)
13°C to 55°C : Quick Charge mode
55°C to 60°C : Trickle Charge mode(High temperature)
more than 60°C : Temperature Protection mode(high temperature)
b. Function after the Temperature Protection mode(low temperature)
more than -2°C : Trickle Charge mode(low temperature)
*Charging starts after the initialization.
c.Function after Trickle Charge mode(low temperature)
less than -5°C : Temperature Protection mode
more than 13°C : Quick Charge mode
d.Function after Quick Charge mode
less than 10°C : Trickle Charge mode(low temperature)
more than 55°C : Trickle Charge mode(high temperature)
e.Function after Trickle Charge mode(high temperature)
less than 50°C : Quick Charge mode
more than 60°C : Trickle Charge mode(high temperature)
f.Function after Temperature Protection mode(high temperature)
less than 55°C : Trickle Charge mode(high temperature)
*Charging starts after the initialization.
g.Function after all mode
less than -28°C : no battery connection mode
<3>Control Diagram
Ichg
Quick
Trickle
0
-28
No
Connection
-5
Temperature
Protection
-2
10
13
50
Quick
Trickle
55
Trickle
60
T(°C)
Temperature
Protection
<4> Thermistor Resistance in each threshold level
-28°C : 100KΩ
-5°C : 33.9KΩ
-2°C : 29.7KΩ
10°C : 18.0KΩ
13°C : 15.9KΩ
50°C : 4.2KΩ
55°C : 3.5KΩ
60°C : 3.0KΩ
*Resistance for dividing with thermistor is 10KΩ
( 10 / 18 )
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
Flow chart
(1)Total
START
AC off
Return from
Adapter mode
Reset
No Battery Connection mode
"H"
poreset
Return from
Temperature protection
waiting mode
Reset
"L"
No
AC power
connection
AC off
Y es
DCJK connecting
Adapter
No
Adapter mode
DCJK no connecting
Battery
Connection
Y es
Charge from initialization
All timer reset
poreset
"H"
Reset
No
ACoff
"L"
AC power
connection
Y es
DCJK connecting
adapter
DCJK no
connecting
Wait Timer Counting
Battery
Connection
No
Adapter mode
No Battery Connection
mode
Y es
Y es
Over voltage
NG mode
No
VB<4.0V
Over discharge
waiting mode
VB ≥ 4.0V
Temperature Check
Rising :-2°C<T<60°C
Falling :-5°C<T<55°C
LED on/off
L.T. 3.2s.
Wait Timer
ov er 3.2s
Temperature
Check
Rising :-2°C<T<13°C or 55°C<T<60°C
Falling :-5°C<T<10°C or 50°C<T<55°C
Trickle charge
Rising :13°C<T<55°C
Falling :10°C<T<50°C
Quick charge
( 11 / 18 )
Rising :T<-2°C or T>60°C
Falling :T<-5°C or T>55°C
Temperature Protection mode
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
(2)Quick charge
START
poreset
"H"
Reset
"L"
AC power
Connection
No
AC off
Y es
Adapter
Connection
DCJK
connecting
Adapter mode
DCJK no connecting
Battery
Connection
No Battery
Connection mode
No
Y es
T emperature
Rising :-2°C<T<60°C
Falling :-5°C<T<55°C
Rising :-2°C<T<13°C or 55°C<T<60°C
Falling :-5°C<T<10°C or 50°C<T<55°C
Charging
Completion
Y es
30hr. timer
ov er
30hr
T emperature
Protection mode
Trickle Charge mode
Charging Completion
mode
Charge NG
mode
L.T. 30hr
30min. timer
ov er
30m in
Quick Charge
L.T. 30m in
LED on/off
SW
until 30minutes on/off
over 30 minutes on(L)
on("L")
VCC
Vchg
LED
LED on
Timer Counts
PC
"L"
CCOFF
CLOCK
"H"
work
work
WAIT TIMER
( 12 / 18 )
Desplay/Charge Timer
work
Charge Current
adj1
ADPCHGSW
"L"
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
(3)Trickle Charge
START
poreset
"H"
Reset
No
ACoff
"L"
AC power
Connection
Y es
DCJK connecting
Adapter
Connection
Adapter mode
DCJK no connecting
Battery
Connection
Y es
No Battery
Connection mode
No
Rising :T<-2°C or T>60°C
Falling :T<-5°C or T>55°C
T emperature
Rising :13°C<T<55°C
Falling :10°C<T<50°C
Timer Stop
Charge
Completion
LED
on/off
on("L")*
Quick Charge
mode
SW
on("L")
VCC
Vchg
PC
CCOFF
"L"
Charge Completion
mode
Y es
30minTimer
Trickle Charge
T emperature
Protection mode
ov er
30m in
LED on
L.T. 30m in
LED on/off
CLOCK
WAIT Timer
Desplay/Charge Timer
"H"
work
Charge Current
work
stop
adj2
ADPCHGSW
"L"
*In case trickle mode is taken after 30min.
in quick mode, LED continues "on".
(4)Charge Completion mode
START
poreset
"H"
Reset
"L"
AC power
Connection
No
ACoff
LED
Y es
Adapter
Connection
SW
DCJK
Connecting
Adapter mode
DCJK
no connecting
Battery
Connection
No
No Battery
Connection mode
VCC
PC
Charge Completion
off("H")
off("H")
Vadapt
"L"
CCOFF
CLOCK
"L"
work
Wait Timer
Reset
Display/Charge Timer
Reset
ADPCHGSW
"H"
Y es
( 13 / 18 )
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
(5)Charge NG mode
START
poreset
"H"
Reset
No
AC off
"L"
AC power
Connection
NG
off("H")
LED
Y es
off("H")
Vadapt
SW
Adapter
Connection
DCJK
Connecting
Adapter mode
No
No Battery
Connection
mode
DCJK
no connecting
Battery
Connection
VCC
PC
"L"
CCOFF
CLOCK
"L"
work
Wait Timer
Reset
Display/Charge Timer
Reset
ADPCHGSW
"H"
LED
Adapter
off("H")
Y es
(6)Adapter mode
START
poreset
"H"
Reset
"L"
Battery
Connection
Yes
No
ACPower
Connection
off("H")
Vadapt
SW
VCC
PC
Previous mode
Reset
No
AC off
"L"
CCOFF
CLOCK
"L"
work
Wait Timer
Reset
Display/Charge Timer
Reset
ADPCHGSW
"H"
Y es
Adapter
Connection
DCJK Noconnecting
Return *
DCJK
Connecting
Battery
Connection
Over
Current
No
Y es
Unusual
mode
Y es
Previous
mode
Completion
No
other
NG
Completion
NG
Reset
* Next mode depends on the prev ious mode and the input during Adapter mode.
( 14 / 18 )
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
(7) Unusual mode
LED
Unusual
off("H")
off("H")
Vadapt
START
SW
poreset
CCOFF
CLOCK
"L"
work
Wait Timer
Reset
Display/Charge Timer
Reset
ADPCHGSW
"H"
LED
AC off
off("H")
VCC
PC
"H"
Reset
"L"
"H"
(8) AC off
START
poreset
"H"
SW
VCC
PC
"L"
AC Power
Connection
Reset
Y es
No
off("H")
Vadapt
"H"
CCOFF
CLOCK
"L"
stop
Wait Timer
Reset
Display/Charge Timer
Reset
ADPCHGSW
"H"
(9)Temperature Protection mode
START
poreset
"H"
Reset
"L"
AC Power
Connection
No
AC off
Y es
Adapter
Connection
DCJK
Connecting
Adapter mode
DCJK
no connecting
Battery
Connection
No Battery
Connection mode
No
Temperature
Check
LED on/off
SW
VCC
PC
Y es
Rising :-2°C<T<60°C
Falling :-5°C<T<55°C
LED
Charge From
the start
Rising :T<-2°C or T>60°C
Falling :T<-5°C or T>55°C
( 15 / 18 )
Temperature Protection
on/off
off("H")
Vadapt
"L"
CCOFF
CLOCK
"L"
work
Wait Timer
Reset
Display/Charge Timer
Reset
ADPCHGSW
"H"
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
(10) Waiting mode(Discharge)
START
poreset
"H"
Reset
No
AC off
"L"
AC Power
Connection
Y es
Adapter
Connection
DCJK
Connecting
Adapter mode
No
No Battery
Connection mode
DCJK
no Connecting
Battery
Connection
Y es
Battery
Voltage
Discharge
VB<4.0v
OK
VB≥4.0v
Charge From the first
LED on/off
LED
SW
VCC
PC
( 16 / 18 )
Waiting
on/off
off("H")
Vadapt
"L"
CCOFF
CLOCK
"L"
work
Wait Timer
Reset
Display/Charge Timer
Reset
ADPCHGSW
"H"
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
M62241FP Mode List
Quick
Trickle
Unusual
Charge Charge
on/off
on/off
off("H")
on("L")* on("L")**
LED
Adapter
Charge
Completion
NG
Waiting
Temperature
Protection
ACOFF
No Battery Charge
Connection Waiting
off("H")
off("H")
off("H")
on/off
on/off
off("H")
off("H")
on/off
off("H")
off("H")
off("H")
SW
on("L")
on("L")
off("H")
off("H")
off("H")
off("H")
off("H")
off("H")
VCC
Vchg
Vchg
Vadpt
Vadpt
Vadpt
Vadpt
Vadpt
Vadpt
Vadpt
Vadpt
Vadpt
PC
"L"
"L"
"H"
"L"
"L"
"L"
"L"
"L"
"H"
"L"
"L"
CCOFF
"H"
"H"
"L"
"L"
"L"
"L"
"L"
"L"
"L"
"L"
"L"
ADPCHGSW
"L"
"L"
"H"
"H"
"H"
"H"
"H"
"H"
"H"
"H"
"H"
CLOCK
work
work
work
work
work
work
work
work
stop
work
work
WAITING TIMER
work
work
reset
reset
reset
reset
reset
reset
reset
reset
work
Display & Charge Timer
work
work
reset
reset
reset
reset
reset
reset
reset
reset
reset
Charge Current
adj1
adj2
-
-
-
-
-
-
-
-
Adapter Detection
work
work
disregard
(work)
work
work
work
work
work
stop
work
work
Battery Connection
Detection
work
work
disregard disregard
(work)
(work)
work
work
work
work
stop
work
work
Over Current Detection
stop
stop
disregard
(work)
work
stop
stop
stop
stop
stop
stop
stop
AC Power off detection
work
work
disregard
(work)
work
work
work
work
work
work
work
work
Over Voltage detection
stop
stop
stop
stop
disregard
(work)
disregard disregard
(work)
(work)
disregard
(work)
stop
disregard
(work)
work
Over discharge
detection
stop
stop
stop
stop
disregard
(work)
disregard
(work)
disregard
(work)
stop
disregard
(work)
work
Battery temperature
detection
work
work
stop
stop
disregard
(work)
disregard disregard
(work)
(work)
work
stop
disregard
(work)
work
work
*------LED on/off until 30minutes , LED on after 30minutes
**------LED is on in case trickle mode is taken over after 30 minutes of quick charge
Stop------In case detector is reset or Input is fixed
disregard(work)------In case detection is discharged except that the function is working.
M62241FP Battery temperature and function relationships
Battery Tem perature(Rising)
t1
tBATT< -2° C
t2
-2°C<tBATT<13°C
t3 13°C<tBATT<55°C
t4 55°C<tBATT<60°C
t5
tBATT>60°C
Function
Tem perature protection
Trickle Charge
Quick Charge
Trickle Charge
Tem perature protection
Battery Tem perature(Falling)
t1
tBATT< -5°C
t2
-5°C<tBATT<10°C
t3
10°C<tBATT<50°C
t4
50°C<tBATT<55°C
t5
tBATT>55°C
( 17 / 18 )
Function
Tem perature protection
Trickle Charge
Quick Charge
Trickle Charge
Tem perature protection
9907
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
EQUIVALENT CIRCUIT
To
Adapter
22K
15K
300
12K
39K
117K
1000
0.22u
0.1u
1500
0.01u
0.1u
39K
117K
0.1u
0.1u
To
Batt
0.1
0.01u
2
VDET
11
20
24
IDET CHG VBIN
7
5
6
VBOUT
B+
B-
T
19
9
SW DCJK
ADJ3 18
4 PC
30K 30K 30K 5100
ADJ2 17
ADJ1 16
ADJ0 12
16V
M62241FP
1 VCC
3K
470 1600 27K
REFOUT 23
15K
21 LED
REFIN 22
10K
10K
2K
TH
RC
CC
15
14
91K
GND PGND
3
THS
13
10
8
0.1u
4700
2200p
470
Unit resistance:Ω
capacitor :F
( 18 / 18 )
9907