s-8243b Seiko Instruments Inc., s-8243b Datasheet - Page 24

• Manufacturer Part Number: s-8243b
• Description: Battry Protection Ic For 3-serial Or 4-serial Cell Pack
• Manufacturer: Seiko Instruments Inc.

24
BATTERY PROTECTION IC FOR 3-SERIAL OR 4-SERIAL CELL PACK
S-8243A/B Series
2. S-8243B Series
*1. Please set up a filter constant to be R
Caution1. No resistance should be inserted in the power supply pin VDD.
No.
10
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
9
R
VC1
2. The above constants are subject to change without prior notice.
3. It has not been confirmed whether the operation is normal or not in circuits other than the above
× C
C
R
R
R
R
R
R
R
R
R
R
R
R
C
C
C
C
C
C
Part
example of connection. In addition, the example of connection shown above and the constant will
not guarantee successful operation. Perform thorough evaluation using the actual application to set
the constant.
VREG
VBAT
CTL1
CTL2
CTL3
CTL4
DOP
COP
VMP
VC1
VC2
VC3
VSS
VC1
VC2
VC3
VSS
CCT
CDT
VC1
= R
Discharging FET
R
R
R
R
VC2
Table 12 Constants for External Components
VC1
VC2
VC3
VSS
R
DOP
× C
C
VC2
VSS
C
= R
0.047
0.047
0.047
VC3
Typ.
5.1
5.1
4.7
0.1
0.1
4.7
Charging FET
10
1
1
1
1
1
1
1
1
0
C
VC3
VC2
R
C
COP
VC1
× C
VSS
VC3
× C
Seiko Instruments Inc.
= R
R
VMP
VSS
VSS
1 VDD
2 DOP
3 COP
4 VMP
5 VC1
6 VC2
7 VC3
8 VSS
≥ 22 µF • Ω and to be
× C
More than 0.02
More than 0.01
0.047 to 0.22
0.047 to 0.22
0.047 to 0.22
Figure 11
S-8243B
VSS
0.51 to 1
2.2 to 10
0.68 to 10
0.51 to 1
2.2 to 10
0.51 to 1
Range
1 to 100
0 to 100
0.1 to 1
1 to 10
2 to 10
1 to 10
1 to 10
1 to 10
.
VBATOUT 11
VREG 16
CTL1 15
CTL2 14
CTL3 13
CTL4 12
CDT
CCT 10
*1
*1
*1
*1
*1
*1
*1
*1
9
C
CDT
C
CCT
R
R
R
R
R
CTL1
CTL2
CTL3
CTL4
VBAT
Unit
MΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
µF
µF
µF
µF
µF
µF
µF
Ω
CTL1
C
EB+
VREG
EB-
Microcomputer
Rev.2.5
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