S-8243A/B Series
www.ablicinc.com
© ABLIC Inc., 2002-2016
BATTERY PROTECTION IC
FOR 3-SERIAL OR 4-SERIAL CELL PACK
Rev.3.1
_01
The S-8243A/B Series is a protection IC for lithium-ion rechargeable battery. The S-8243A Series protects 3-series, the S-8243B
Series protects 4-series cell pack from the overcharge, overdischarge, overcurrent voltages. This IC has a high-accuracy battery
protection circuit and a battery monitor amplifier, and also a voltage regulator which operates the microcomputer or gas gauge IC.
Combining this IC and a microcomputer or a gas gauge IC allows to display the amount of charge remained in a battery.
Features
(1)
High-accuracy voltage detection for each cell
Overcharge detection voltage n (n = 1 to 4)
3.9 V to 4.4 V (50 mV step)
Accuracy
25
mV
Overcharge hysteresis voltage n (n = 1 to 4) of overcharge detection
0.10
V to
0.40
V (50 mV step) or 0 V
Accuracy
50
mV
(Overcharge release voltage n (= Overcharge detection voltage n
Overcharge hysteresis voltage n) can be
selected within the range 3.8 V to 4.4 V.)
Overdischarge detection voltage n (n = 1 to 4)
2.0 V to 3.0 V (100 mV step)
Accuracy
80
mV
Overdischarge hysteresis voltage n (n = 1 to 4) of overdischarge detection
0.15 V to 0.70 V or 0 V (50 mV step)
Accuracy
100
mV
(Overdischarge release voltage n (= Overdischarge detection voltage n
Overdischarge hysteresis voltage n)
can be selected within the range 2.0 V to 3.4 V.)
(2) Three-level overcurrent protection including protection for short-circuiting
Overcurrent detection voltage 1
0.05 V to 0.3 V (50 mV step)
Accuracy
25
mV
Overcurrent detection voltage 2
0.5 V
Accuracy
100
mV
Overcurrent detection voltage 3
V
DD
/ 2
Accuracy
15
%
(3) Delay times for overcharge detection, overdischarge detection and overcurrent detection 1 can be set by external
capacitors. (Delay times for overcurrent detection 2 and 3 are fixed internally.)
(4) Charge/discharge operation can be controlled through the control pins.
(5) High-accuracy battery monitor amp
GAMP = V
BATTERY
0.2
1.0%
(6) Voltage regulator
V
OUT
= 3.3 V
2.4
% (3 mA max.)
(7) High-withstand voltage
Absolute maximum rating: 26 V
(8) Wide operating voltage range
6 V to 18 V
(9) Wide operating temperature range:
40°C
to
85C
(10) Low current consumption
Operation mode
120
A
max.
Power down mode
0.1
A
max.
*1
(11) Lead-free, Sn 100%, halogen-free
*1.
Refer to “
Product Name Structure”
for details.
Applications
Lithium-ion rechargeable battery packs
Lithium polymer rechargeable battery packs
Package
16-Pin TSSOP
1
BATTERY PROTECTION IC FOR 3-SERIAL OR 4-SERIAL CELL PACK
S-8243A/B Series
Block Diagrams
1. S-8243A Series
Rev.3.1
_01
VDD
Battery protection
VREG
DOP,COP,
RVCM,RVSM
control
DOP
Voltage
regulator
COP
Delay
Delay
Delay
660 k
200 nA
CTL1
VREG
1.4 M
Delay
440 k
CTL2
1.4 M
VMP
660 k
VREG
Battery
selection
1.4 M
CTL3
1.4 M
VREG
1.4 M
VC1
CTL4
1.4 M
VC2
Battery monitor amp
1 M
5 M
VBATOUT
5 M
1 M
VC3
CCT
CDT
VSS
Remark1.
Diodes in the figure are parasitic diodes.
2.
Numerical values are typical values.
Figure 1
2
Rev.3.1
_01
BATTERY PROTECTION IC FOR 3-SERIAL OR 4-SERIAL CELL PACK
S-8243A/B Series
2. S-8243B Series
VDD
Battery protection
VREG
DOP, COP,
RVCM, RVSM
control
DOP
Voltage
regulator
COP
Delay
Delay
Delay
660k
200 nA
CTL1
VREG
1.4 M
Delay
440 k
CTL2
1.4 M
VMP
660 k
VREG
Battery
selection
1.4 M
CTL3
1.4 M
VREG
1.4 M
VC1
CTL4
1.4 M
VC2
Battery monitor amp
1 M
5 M
VBATOUT
5 M
1 M
VC3
CCT
CDT
VSS
Remark1.
Diodes in the figure are parasitic diodes.
2.
Numerical values are typical values.
Figure 2
3
BATTERY PROTECTION IC FOR 3-SERIAL OR 4-SERIAL CELL PACK
S-8243A/B Series
Product Name Structure
1. Product Name
S-8243
x
xx
FT
-
TB
x
Rev.3.1
_01
Environmental code
U:
Lead-free (Sn 100%), halogen-free
G:
Lead-free (for details, please contact our sales office
IC direction in tape specifications
*1
Package name (abbreviation)
FT:
16-Pin TSSOP
Serial code
*2
Sequentially set from AA to ZZ
Product series name
A:
3-cell
B:
4-cell
*1.
Refer to the tape drawing.
*2.
Refer to “
3. Product Name List
”.
2. Package
Package Name
16-Pin TSSOP
Environmental code = G
Environmental code = U
Drawing Code
Tape
FT016-A-C-SD
FT016-A-C-SD
Package
FT016-A-P-SD
FT016-A-P-SD
Reel
FT016-A-R-SD
FT016-A-R-S1
3. Product Name List
Table 1 S-8243A Series (For 3-Serial Cell)
Product name / Item
S-8243AACFT-TB-x
S-8243AADFT-TB-x
Overcharge
detection voltage
[V
CU
]
4.350
0.025
V
4.350
0.025
V
Overcharge
hysteresis voltage
[V
HC
]
0.15 0.05
V
0.35 0.05
V
Overdischarge
detection voltage
[V
DL
]
2.40
0.08
V
2.40
0.08
V
Overdischarge
hysteresis voltage
[V
HD
]
0.20
0.10
V
0V
Overcurrent
0 V battery
detection voltage1 charging
[V
IOV1
]
function
0.20
0.025
V
0.20
0.025
V
Available
Available
Table 2 S-8243B Series (For 4-Serial Cell)
Overcharge
detection voltage
[V
CU
]
S-8243BADFT-TB-x
S-8243BAEFT-TB-x
S-8243BAFFT-TB-x
S-8243BAHFT-TB-x
4.350
0.025
V
4.350
0.025
V
4.250
0.025
V
4.315
0.025
V
Overcharge
hysteresis voltage
[V
HC
]
0.25 0.05
V
0.15 0.05
V
0.25 0.05
V
0.20 0.05
V
Overdischarge
detection voltage
[V
DL
]
2.40
0.08
V
2.40
0.08
V
2.40
0.08
V
2.00
0.08
V
Overdischarge
hysteresis voltage
[V
HD
]
0V
0.20
0.10
V
0V
0.15
0.10
V
Overcurrent
0 V battery
detection voltage1 charging
[V
IOV1
]
function
0.25
0.025
V
0.20
0.025
V
0.20
0.025
V
0.20
0.025
V
Available
Available
Available
Available
Product name / Item
Remark 1.
Change in the detection voltage is available in products other than listed above. Contact our sales office.
2.
x: G or U
3.
Please select products of environmental code = U for Sn 100%, halogen-free products.
4
Rev.3.1
_01
BATTERY PROTECTION IC FOR 3-SERIAL OR 4-SERIAL CELL PACK
S-8243A/B Series
Pin Configuration
16-Pin TSSOP
Top view
VDD
DOP
COP
VMP
VC1
VC2
VC3
VSS
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VREG
CTL1
CTL2
CTL3
CTL4
VBATOUT
CCT
CDT
Figure 3
Table 3 Pin description (S-8243A Series)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Symbol
VDD
DOP
COP
VMP
VC1
VC2
VC3
VSS
CDT
CCT
VBATOUT
CTL4
CTL3
CTL2
CTL1
VREG
Description
Input pin for positive power supply, Connection pin for battery 1’s positive voltage
Connection pin for discharge control FET gate (CMOS output)
Connection pin for charge control FET gate (Nch open drain output)
Pin for voltage detection between VDD-VMP pin (Pin for overcurrent detection)
No connection
Connection pin for battery 1’s negative voltage, for battery 2’s positive voltage
Connection pin for battery 2’s negative voltage, for battery 3’s positive voltage
Input pin for negative power supply, Connection pin for battery 3’s negative voltage
Connection pin to capacitor for overdischarge detection delay, for overcurrent detection delay 1
Connection pin to capacitor for overcharge detection delay
Output pin for battery voltage and offset voltage
Pin for selecting output from VBATOUT pin
Pin for selecting output from VBATOUT pin
Control pin for charge / discharge FET
Control pin for charge / discharge FET
Output pin for voltage regulator (3.3 V)
Table 4 Pin description (S-8243B Series)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Symbol
VDD
DOP
COP
VMP
VC1
VC2
VC3
VSS
CDT
CCT
VBATOUT
CTL4
CTL3
CTL2
CTL1
VREG
Description
Input pin for positive power supply, Connection pin for battery 1’s positive voltage
Connection pin for discharge control FET gate (CMOS output)
Connection pin for charge control FET gate (Nch open drain output)
Pin for voltage detection between VDD-VMP pin (Pin for overcurrent detection)
Connection pin for battery 1’s negative voltage, for battery 2’s positive voltage
Connection pin for battery 2’s negative voltage, for battery 3’s positive voltage
Connection pin for battery 3’s negative voltage, for battery 4’s positive voltage
Input pin for negative power supply, Connection pin for battery 4’s negative voltage
Connection pin to capacitor for overdischarge detection delay, for overcurrent detection delay 1
Connection pin to capacitor for overcharge detection delay
Output pin for battery voltage and offset voltage
Pin for selecting output from VBATOUT pin
Pin for selecting output from VBATOUT pin
Control pin for charge / discharge FET
Control pin for charge / discharge FET
Output pin for voltage regulator (3.3 V)
5
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