S-8204A Series
www.sii-ic.com
© Seiko Instruments Inc., 2007-2013
BATTERY PROTECTION IC
FOR 3-SERIES OR 4-SERIES CELL PACK
Rev.3.3
_00
The S-8204A Series includes high-accuracy voltage detection circuits and delay circuits, in single use, makes it
possible for users to monitor the status of 3-series or 4-series cell lithium-ion rechargeable battery. By switching
the voltage level which is applied to the SEL pin, users are able to use the S-8204A Series either for 3-series or
4-series cell pack.
By cascade connection using the S-8204A Series, it is also possible to protect 6-series or more cells
*1
lithium-ion rechargeable battery pack.
*1.
Refer to the application note for connection examples of protection circuit for 6-series or more cells.
In case of protecting 5-series cell lithium-ion rechargeable battery pack, contact our sales office.
Features
•
High-accuracy voltage detection function for each cell
Overcharge detection voltage n (n = 1 to 4)
3.8 V to 4.6 V (50 mV step)
Overcharge release voltage n (n = 1 to 4)
3.6 V to 4.6 V
*1
Overdischarge detection voltage n (n = 1 to 4) 2.0 V to 3.0 V (100 mV step)
Overdischarge release voltage n (n = 1 to 4)
2.0 V to 3.4 V
*2
•
Discharge overcurrent detection function in 3-step
Discharge overcurrent detection voltage 1
0.05 V to 0.30 V (50 mV step)
Discharge overcurrent detection voltage 2
0.5 V (fixed)
Load short-circuit detection voltage
1.0 V (fixed)
•
Charge overcurrent detection function
Charge overcurrent detection voltage
−0.25
V to
−0.05
V (50 mV step)
•
Settable by external capacitor; overcharge detection delay time, overdischarge
discharge overcurrent detection delay time 1, discharge overcurrent detection
overcurrent detection delay time
(Load short-circuit detection delay time is internally fixed.)
•
Switchable between 3-series and 4-series cell by using the SEL pin
•
Independent charge and discharge control by the control pins
•
High-withstand voltage element
Absolute maximum rating: 24 V
•
Wide operation voltage range
2 V to 22 V
•
Wide operation temperature range
Ta =
−40°C
to
+85°C
•
Low current consumption
During operation
33
μA
max. (Ta =
+25°C)
During power-down
0.1
μA
max. (Ta =
+25°C)
*3
•
Lead-free, Sn 100%, halogen-free
Accuracy
±25
mV
Accuracy
±50
mV
Accuracy
±80
mV
Accuracy
±100
mV
Accuracy
±15
mV
Accuracy
±100
mV
Accuracy
±300
mV
Accuracy
±30
mV
detection delay time,
delay time 2, charge
*1.
Overcharge hysteresis voltage n (n = 1 to 4) is selectable in 0 V, or in 0.1 V to 0.4 V in 50 mV step.
(Overcharge hysteresis voltage = Overcharge detection voltage
−
Overcharge release voltage)
*2.
Overdischarge hysteresis voltage n (n = 1 to 4) is selectable in 0 V, or in 0.2 V to 0.7 V in 100 mV step.
(Overdischarge hysteresis voltage = Overdischarge release voltage
−
Overdischarge detection voltage)
*3.
Refer to "
Product Name Structure"
for details.
Application
•
Rechargeable lithium-ion battery pack
Package
•
16-Pin TSSOP
Seiko Instruments Inc.
1
BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK
S-8204A Series
Block Diagram
COP
Control circuit
Rev.3.3
_00
Delay circuit
Delay circuit
Delay circuit
CTLC
R
VMD
VMP
R
VMS
Delay circuit
CTLD
Delay circuit
Delay circuit
Over-
charge 1
−
VDD
DOP
Over-
+
discharge
+
1
−
VINI
+
−
+
−
+
−
+
−
Over-
charge 2
VC1
−
+
Discharge
overcurrent 1
Discharge
overcurrent 2
Short circuit
Charge
overcurrent
Over-
discharge
+
2
−
Over-
charge 3
−
+
Over-
discharge 3
+
−
VC2
CDT
Over-
charge 4
−
VC3
CCT
+
Over-
discharge 4
+
−
CIT
VC4
SEL
VSS
Remark
Diodes in the figure are parasitic diodes.
Figure 1
2
Seiko Instruments Inc.
Rev.3.3
_00
BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK
S-8204A Series
Product Name Structure
1.
Product name
S-8204A
xx
-
xxxx
x
Environmental code
U: Lead-free (Sn 100%), halogen-free
S: Lead-free, halogen-free
Package name (abbreviation) and packing specifications
*1
TCT1: 16-Pin TSSOP, Tape
Serial code
*2
Sequentially set from AA to ZZ
*1.
Refer to the tape drawing.
*2.
Refer to "3.
Product name list".
2. Package
Table 1 Package Drawing Codes
Package Name
Environmental code = S
16-Pin TSSOP
Environmental code = U
Dimension
FT016-A-P-SD
FT016-A-P-SD
Tape
FT016-A-C-SD
FT016-A-C-SD
Reel
FT016-A-R-SD
FT016-A-R-S1
3. Product name list
Table 2
Charge
Discharge
Overcharge
Overdischarge
Overdischarge
Overcharge
Overcurrent
0 V Battery
Overcurrent
Detection Voltage Release Voltage Detection Voltage Release Voltage
Detection Voltage 1 Detection Voltage Charge Function
[V
CL
]
[V
DL
]
[V
DU
]
[V
CU
]
[V
CIOV
]
[V
DIOV1
]
2.00
±
0.080 V
2.70
±
0.080 V
2.00
±
0.080 V
2.40
±
0.080 V
2.70
±
0.080 V
2.20
±
0.080 V
2.00
±
0.080 V
2.00
±
0.080 V
2.50
±
0.080 V
2.30
±
0.080 V
2.70
±
0.100 V
2.90
±
0.100 V
2.30
±
0.100 V
2.70
±
0.100 V
2.90
±
0.100 V
2.50
±
0.100 V
2.30
±
0.100 V
2.30
±
0.100 V
3.00
±
0.100 V
2.60
±
0.100 V
0.25
±
0.015 V
0.25
±
0.015 V
0.30
±
0.015 V
0.20
±
0.015 V
0.10
±
0.015 V
0.10
±
0.015 V
0.10
±
0.015 V
0.05
±
0.015 V
0.30
±
0.015 V
0.15
±
0.015 V
−0.10 ±
0.030 V
−0.25 ±
0.030 V
−0.25 ±
0.030 V
−0.15 ±
0.030 V
−0.10 ±
0.030 V
−0.10 ±
0.030 V
−0.05 ±
0.030 V
−0.05 ±
0.030 V
−0.20 ±
0.030 V
−0.15 ±
0.030 V
Available
Available
Available
Unavailable
Available
Available
Available
Available
Unavailable
Unavailable
Product Name
S-8204AAB-TCT1y 4.350
±
0.025 V 4.150
±
0.050 V
S-8204AAC-TCT1y 4.200
±
0.025 V 4.100
±
0.050 V
S-8204AAD-TCT1y 3.800
±
0.025 V 3.600
±
0.050 V
S-8204AAE-TCT1y 4.250
±
0.025 V 4.050
±
0.050 V
S-8204AAF-TCT1y
S-8204AAG-TCT1y
S-8204AAH-TCT1y
S-8204AAI-TCT1y
S-8204AAJ-TCT1U
S-8204AAK-TCT1U
4.200
±
0.025 V
3.800
±
0.025 V
3.800
±
0.025 V
3.800
±
0.025 V
4.350
±
0.025 V
4.300
±
0.025 V
4.100
±
0.050 V
3.650
±
0.050 V
3.600
±
0.050 V
3.600
±
0.050 V
4.150
±
0.050 V
4.100
±
0.050 V
Remark 1.
Please contact our sales office for products with detection voltage values other than those specified
above.
2.
y: S or U
3.
Please select products of environmental code = U for Sn 100%, halogen-free products.
Seiko Instruments Inc.
3
BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK
S-8204A Series
Pin Configuration
1. 16-Pin TSSOP
Top view
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Rev.3.3
_00
Figure 2
Table 3
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Symbol
COP
VMP
DOP
VINI
CDT
CCT
CIT
SEL
VSS
VC4
VC3
VC2
VC1
VDD
CTLD
CTLC
Description
Connection pin of charge control FET gate (Nch open-drain output)
Voltage detection pin between VDD pin and VMP pin
Connection pin of discharge control FET gate (CMOS output)
Voltage detection pin between VSS pin and VINI pin
•
Discharge overcurrent 1 / 2 detection pin, load short-circuit detection pin
•
Charge overcurrent detection pin
Capacitor connection pin for delay for overdischarge detection
Capacitor connection pin for delay for overcharge detection
Capacitor connection pin for delay for discharge overcurrent 1 / 2,
capacitor connection pin for delay for charge overcurrent detection
Pin for switching 3-series or 4-series cell
•
V
SS
level: 3-series cell
•
V
DD
level: 4-series cell
Input pin for negative power supply,
Connection pin for negative voltage of battery 4
Connection pin for negative voltage of battery 4
Connection pin for negative voltage of battery 3,
Connection pin for positive voltage of battery 4
Connection pin for negative voltage of battery 2,
Connection pin for positive voltage of battery 3
Connection pin for negative voltage of battery 1,
Connection pin for positive voltage of battery 2
Input pin for positive power supply,
Connection pin for positive voltage of battery 1
Discharge FET control pin
Charge FET control pin
4
Seiko Instruments Inc.
Rev.3.3
_00
BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK
S-8204A Series
Absolute Maximum Ratings
Table 4
Item
Input voltage between VDD pin
and VSS pin
Input pin voltage
VMP pin input voltage
DOP pin output voltage
COP pin output voltage
Power dissipation
Symbol
V
DS
V
IN
V
VMP
V
DOP
V
COP
P
D
Applied Pin
−
(Ta =
+
25
°
C unless otherwise specified)
Absolute Maximum Rating
Unit
V
SS
−
0.3 to V
SS
+
24
V
SS
−
0.3 to V
DD
+
0.3
V
SS
−
0.3 to V
SS
+
24
V
SS
−
0.3 to V
DD
+
0.3
V
SS
−
0.3 to V
SS
+
24
400
(When not mounted on board)
1100
*1
−
40 to
+
85
−
40 to
+
125
V
V
V
V
V
mW
mW
°
C
°
C
VC1, VC2, VC3, VC4,
CTLC, CTLD, SEL,
CCT, CDT, CIT, VINI
VMP
DOP
COP
−
−
Operation ambient temperature T
opr
−
Storage temperature
T
stg
*1.
When mounted on board
[Mounted board]
(1) Board size:
114.3 mm
×
76.2 mm
×
t1.6 mm
(2) Board name: JEDEC STANDARD51-7
Caution The absolute maximum ratings are rated values exceeding which the product could suffer
physical damage. These values must therefore not be exceeded under any conditions.
Power Dissipation (P
D
) [mW]
1200
1000
800
600
400
200
0
0
50
100
150
Ambient Temperature (Ta) [°C]
Figure 3 Power Dissipation of Package (When Mounted on Board)
Seiko Instruments Inc.
5
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