S-8225A Series
www.ablic.com
© ABLIC Inc., 2012-2018
BATTERY MONITORING IC
FOR 3-SERIAL TO 5-SERIAL CELL PACK
Rev.1.8
_02
The S-8225A Series includes high-accuracy voltage detection circuits and delay circuits, and can monitor the status of
3-serial to 5-serial cell lithium-ion rechargeable battery in single use. By switching the voltage level which is applied to the
SEL1 pin and SEL2 pin, users are able to use the S-8225A Series for 3-serial to 5-serial cell pack.
By cascade connection using the S-8225A Series, it is also possible to protect 6-serial or more cells lithium-ion rechargeable
battery pack.
Features
•
High-accuracy voltage detection function for each cell
Overcharge detection voltage n (n = 1 to 5)
3.500 V to 4.400 V (50 mV step)
Accuracy
±20
mV (Ta =
+25°C), ±30
mV (Ta = 0°C to
+60°C)
Overcharge release voltage n (n = 1 to 5)
3.300 V to 4.400 V
*1
Accuracy
±50
mV
Overdischarge detection voltage n (n = 1 to 5)
2.000 V to 3.200 V (100 mV step) Accuracy
±80
mV
*2
Accuracy
±100
mV
Overdischarge release voltage n (n = 1 to 5)
2.100 V to 3.400 V
Overcharge detection delay time and overdischarge detection delay time can be set by external capacitor.
Switchable between 3-serial to 5-serial cell by using the SEL1 pin and the SEL2 pin
Cascade connection is available.
The CO pin and the DO pin are controlled by the CTLC pin and the CTLD pin, respectively.
Output voltage of the CO pin and the DO pin is limited to 12 V max.
High-withstand voltage
Absolute maximum rating: 28 V
Wide operation voltage range
4 V to 26 V
Wide operation temperature range
Ta =
−40°C
to
+85°C
Low current consumption
During operation (V1 = V2 = V3 = V4 = V5 = 3.4 V)
22
μA
max. (Ta =
+25°C)
During power-down (V1 = V2 = V3 = V4 = V5 = 1.6 V) 4.5
μA
max. (Ta =
+25°C)
Lead-free (Sn 100%), halogen-free
•
•
•
•
•
•
•
•
•
•
*1.
Overcharge hysteresis voltage n (n = 1 to 5) 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 5) is selectable in 0 V to 0.7 V in 100 mV step.
(Overdischarge hysteresis voltage = Overdischarge release voltage
−
Overdischarge detection voltage)
Application
•
Lithium-ion rechargeable battery pack
Package
•
16-Pin TSSOP
1
BATTERY MONITORING IC FOR 3-SERIAL TO 5-SERIAL CELL PACK
S-8225A Series
Block Diagram
Rev.1.8
_02
CTLD
Control circuit
CTLC
VDD
Delay circuit
Delay circuit
VC1
CO pin output voltage
limit circuit
CO
Overcharge 1
−
+
Over-
discharge 1
+
−
Overcharge 2
−
+
Over-
discharge 2
+
−
Overcharge 3
−
+
Over-
discharge 3
+
−
Overcharge 4
Over-
discharge 4
−
+
+
−
VC2
DO pin output voltage
limit circuit
VC3
DO
VC4
SEL1
SEL2
Overcharge 5
−
+
Over-
discharge 5
+
−
VC5
VC6
CDT
CCT
VSS
Remark
Diodes in the figure are parasitic diodes.
Figure 1
2
Rev.1.8
_02
BATTERY MONITORING IC FOR 3-SERIAL TO 5-SERIAL CELL PACK
S-8225A Series
Product Name Structure
1. Product name
S-8225A xx
-
TCT1
U
Environmental code
U:
Lead-free (Sn 100%), halogen-free
Package abbreviation and IC packing specifications
*1
TCT1: 16-Pin TSSOP, Tape
Serial code
Sequentially set from AA to ZZ
*2
*1.
Refer to the tape drawing.
*2.
Refer to "3.
Product name list".
2. Package
Table 1 Package Drawing Codes
Package Name
16-Pin TSSOP
Dimension
FT016-A-P-SD
Tape
FT016-A-C-SD
Reel
FT016-A-R-S1
3. Product name list
Table 2
Overcharge
Overdischarge
Overdischarge
0 V Battery
Overcharge
Detection
Product Name
Detection Voltage Release Voltage Detection Voltage Release Voltage
[V
CL
]
[V
DL
]
[V
DU
]
Function
[V
CU
]
S-8225AAA-TCT1U
4.225 V
4.125 V
2.300 V
2.500 V
Available
S-8225AAB-TCT1U
4.400 V
4.300 V
2.300 V
2.500 V
Available
S-8225AAC-TCT1U
4.250 V
4.150 V
2.500 V
3.000 V
Unavailable
S-8225AAD-TCT1U
4.350 V
4.350 V
2.500 V
2.700 V
Unavailable
S-8225AAE-TCT1U
4.225 V
4.125 V
2.300 V
3.000 V
Unavailable
S-8225AAF-TCT1U
4.215 V
4.155 V
2.800 V
3.000 V
Available
S-8225AAG-TCT1U
4.250 V
4.250 V
2.500 V
2.700 V
Unavailable
S-8225AAH-TCT1U
4.150 V
4.000 V
2.500V
3.000 V
Available
S-8225AAI-TCT1U
4.200 V
4.150 V
2.500V
2.550 V
Available
Remark
Please contact our sales office for products with detection voltage values other than those specified above.
3
BATTERY MONITORING IC FOR 3-SERIAL TO 5-SERIAL CELL PACK
S-8225A 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.1.8
_02
Figure 2
Table 3
Pin No.
1
2
3
4
5
6
7
8
Symbol
CTLD
CTLC
CO
DO
SEL1
SEL2
CDT
CCT
Description
DO control pin
CO control pin
Output pin for overcharge detection
Output pin for overdischarge detection
Switching pins for 3-serial to 5-serial cell
*1
Capacitor connection pin for delay for overdischarge detection voltage
Capacitor connection pin for delay for overcharge detection voltage
Input pin for negative power supply,
9
VSS
connection pin for negative voltage of battery 5
10
VC6
Connection pin for negative voltage of battery 5
Connection pin for negative voltage of battery 4,
11
VC5
connection pin for positive voltage of battery 5
Connection pin for negative voltage of battery 3,
12
VC4
connection pin for positive voltage of battery 4
Connection pin for negative voltage of battery 2,
13
VC3
connection pin for positive voltage of battery 3
Connection pin for negative voltage of battery 1,
14
VC2
connection pin for positive voltage of battery 2
15
VC1
Connection pin for positive voltage of battery 1
Input pin for positive power supply,
16
VDD
connection pin for positive voltage of battery 1
*1.
Refer to "7.
SEL pin"
in "
Operation"
for setting of the SEL1 pin and the SEL2 pin.
4
Rev.1.8
_02
BATTERY MONITORING IC FOR 3-SERIAL TO 5-SERIAL CELL PACK
S-8225A Series
Absolute Maximum Ratings
Table 4
Item
Input voltage between
VDD pin and VSS pin
Input pin voltage
Symbol
V
DS
V
IN
VDD
VC1, VC2, VC3, VC4, VC5, VC6,
SEL1, SEL2, CTLC, CTLD,
CCT, CDT
DO, CO
−
−
−
Applied Pin
(Ta =
+25°C
unless otherwise specified)
Absolute Maximum Rating
Unit
V
SS
−
0.3 to V
SS
+
28
V
SS
−
0.3 to V
DD
+
0.3
V
SS
−
0.3 to V
DD
+
0.3
1100
*1
−40
to
+85
−40
to
+125
V
V
V
mW
°C
°C
Output pin voltage
V
OUT
Power dissipation
P
D
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.
1200
Power dissipation (P
D
) [mW]
1000
800
600
400
200
0
0
50
100
150
Ambient temperature (Ta) [°C]
Figure 3 Power Dissipation of Package (When Mounted on Board)
5
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