S-8211D Series
www.sii-ic.com
© Seiko Instruments Inc., 2005-2010
BATTERY PROTECTION IC
FOR 1-CELL PACK
Rev.6.0
_00
The S-8211D Series are protection ICs for single-cell lithium-ion / lithium-polymer rechargeable batteries and include high-
accuracy voltage detectors and delay circuits.
These ICs are suitable for protecting single-cell rechargeable lithium-ion / lithium-polymer battery packs from overcharge,
overdischarge, and overcurrent.
Features
(1) High-accuracy voltage detection circuit
•
Overcharge detection voltage
Accuracy
±25
mV (+25°C)
Accuracy
±30
mV (−5°C to
+55°C)
*1
•
Overcharge release voltage
3.5 V to 4.4 V
Accuracy
±50
mV
•
Overdischarge detection voltage
2.0 V to 3.0 V (10 mV step)
Accuracy
±50
mV
*2
Accuracy
±100
mV
•
Overdischarge release voltage
2.0 V to 3.4 V
•
Discharge overcurrent detection voltage
0.05 V to 0.30 V (10 mV step)
Accuracy
±15
mV
•
Load short-circuiting detection voltage
0.5 V (fixed)
Accuracy
±200
mV
Detection delay times are generated by an internal circuit (external capacitors are unnecessary).
Accuracy
±20%
High-withstanding voltage device is used for charger connection pins (VM pin and CO pin : Absolute maximum
rating = 28 V)
0 V battery charge function available / unavailable are selectable.
Shutdown function yes / no are selectable.
Wide operating temperature range
−40°C
to
+85°C
Low current consumption
•
Operation mode
3.0
μ
A typ., 5.5
μ
A max. (+25°C)
•
Power-down mode
0.2
μ
A max. (+25°C)
*3
Lead-free, Sn 100%, halogen-free
3.6 V to 4.4 V (5 mV step)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
*1.
Overcharge release voltage = Overcharge detection voltage
−
Overcharge hysteresis voltage
(Overcharge hysteresis voltage can be selected as 0 V or from a range of 0.1 V to 0.4 V in 50 mV step.)
*2.
Overdischarge release voltage = Overdischarge detection voltage
+
Overdischarge hysteresis voltage
(Overdischarge hysteresis voltage can be selected as 0 V or from a range of 0.1 V to 0.7 V in 100 mV step.)
*3.
Refer to “
Product Name Structure”
for details.
Applications
•
Lithium-ion rechargeable battery packs
•
Lithium-polymer rechargeable battery packs
Packages
•
SOT-23-5
•
SNT-6A
Seiko Instruments Inc.
1
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8211D Series
Rev.6.0
_00
Block Diagram
Output control circuit
0 V battery charge circuit
or 0 V battery charge
inhibition circuit
DO
Divider control
circuit
Oscillator control
circuit
VDD
+
CO
Charger detection circuit
−
+
−
Discharge overcurrent detection
comparator
R
VMD
VM
+
R
VMS
−
+
−
Load short-circuiting detection
comparator
Overdischarge
detection
comparator
VSS
Overcharge
detection
comparator
Remark
All diodes shown in figure are parasitic diodes.
Figure 1
2
Seiko Instruments Inc.
Rev.6.0
_00
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8211D Series
Product Name Structure
1. Product Name
(1) SOT-23-5
S-8211D
xx
−
M5T1
x
Environmental code
U : Lead-free (Sn 100%), halogen-free
S : Lead-free, halogen-free
G : Lead-free (for details, please contact our sales office)
Package name (abbreviation) and IC packing specifications
*1
M5T1 : SOT-23-5, Tape
Serial code
*2
Sequentially set from AA to ZZ
*1.
Refer to the tape specifications.
*2.
Refer to the “3.
Product Name List”.
(2) SNT-6A
S-8211D
xx
−
I6T1
x
Environmental code
U : Lead-free (Sn 100%), halogen-free
G : Lead-free (for details, please contact our sales office)
Package name (abbreviation) and IC packing specifications
*1
I6T1 : SNT-6A, Tape
Serial code
*2
Sequentially set from AA to ZZ
*1.
Refer to the tape specifications.
*2.
Refer to the “3.
Product Name List”.
Seiko Instruments Inc.
3
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8211D Series
Rev.6.0
_00
2. Package
Package Name
SOT-23-5
SNT-6A
Drawing Code
Package
MP005-A-P-SD
PG006-A-P-SD
Tape
MP005-A-C-SD
PG006-A-C-SD
Reel
MP005-A-R-SD
PG006-A-R-SD
Land
−
PG006-A-L-SD
3. Product Name List
(1) SOT-23-5
Table 1
Over-
charge
Detection
Product Name / Item
Voltage
[V
CU
]
Over-
charge
Release
Voltage
[V
CL
]
Over-
Over-
Discharge
discharge discharge Overcurrent
Detection Release
Detection
Voltage
Voltage
Voltage
[V
DL
]
[V
DU
]
[V
DIOV
]
0 V Battery
Charge
Function
Unavailable
Unavailable
Unavailable
Available
Unavailable
Available
Unavailable
Available
Unavailable
Available
Available
Available
Available
Available
Delay Time Shutdown
Combination
*1
Function
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
S-8211DAB-M5T1x
4.250 V
4.050 V
2.60 V
2.90 V
0.12 V
S-8211DAD-M5T1x
4.280 V
4.180 V
2.50 V
2.80 V
0.19 V
S-8211DAE-M5T1x
4.280 V
4.180 V
2.50 V
2.70 V
0.19 V
S-8211DAH-M5T1x
4.275 V
4.175 V
2.30 V
2.40 V
0.10 V
S-8211DAI-M5T1x
4.325 V
4.075 V
2.50 V
2.90 V
0.15 V
S-8211DAJ-M5T1x
4.280 V
4.080 V
3.00 V
3.00 V
0.08 V
S-8211DAK-M5T1x
4.280 V
4.080 V
2.30 V
2.30 V
0.13 V
S-8211DAL-M5T1x
4.280 V
4.080 V
2.80 V
2.80 V
0.10 V
S-8211DAM-M5T1x
4.275 V
4.075 V
2.50 V
2.90 V
0.15 V
S-8211DAR-M5T1x
3.600 V
3.600 V
2.00 V
2.30 V
0.15 V
S-8211DAS-M5T1x
3.600 V
3.500 V
2.50 V
2.80 V
0.10 V
S-8211DAU-M5T1y
3.650 V
3.550 V
2.50 V
2.80 V
0.15 V
S-8211DAV-M5T1y
3.700 V
3.600 V
2.50 V
2.80 V
0.05 V
S-8211DAW-M5T1y
3.800 V
3.700 V
2.50 V
2.80 V
0.10 V
*1.
Refer to the
Table 3
about the details of the delay time combinations (1).
Remark 1.
Please contact our sales office for the products with detection voltage value other than those specified above.
2.
x: G or U
y: S or U
3.
Please select products of environmental code = U for Sn 100%, halogen-free products.
4
Seiko Instruments Inc.
Rev.6.0
_00
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8211D Series
(2) SNT-6A
Table 2
Over-
charge
Product Name / Item Detection
Voltage
[V
CU
]
S-8211DAB-I6T1x
S-8211DAD-I6T1x
S-8211DAE-I6T1x
S-8211DAF-I6T1x
S-8211DAG-I6T1x
S-8211DAI-I6T1x
S-8211DAN-I6T1x
S-8211DAQ-I6T1x
S-8211DAT-I6T1x
S-8211DAX-I6T1x
S-8211DAY-I6T1x
S-8211DAZ-I6T1x
4.250 V
4.280 V
4.280 V
4.250 V
4.280 V
4.325 V
4.280 V
4.280 V
4.280 V
4.280 V
3.900 V
3.800 V
Over-
charge
Release
Voltage
[V
CL
]
4.050 V
4.180 V
4.180 V
4.050 V
4.080 V
4.075 V
4.080 V
4.080 V
4.080 V
4.080 V
3.900 V
3.500 V
Discharge
Over-
Over-
discharge discharge Overcurrent
Detection
Detection Release
Voltage
Voltage
Voltage
[V
DIOV
]
[V
DL
]
[V
DU
]
2.60 V
2.50 V
2.50 V
2.40 V
2.30 V
2.50 V
2.30 V
2.30 V
2.70 V
2.00 V
2.00 V
2.40 V
2.90 V
2.80 V
2.70 V
2.90 V
2.30 V
2.90 V
3.00 V
2.30 V
2.70 V
2.00 V
2.30 V
2.70 V
0.12 V
0.19 V
0.19 V
0.10 V
0.08 V
0.15 V
0.10 V
0.10 V
0.08 V
0.11 V
0.15 V
0.07 V
0 V Battery
Charge
Function
Unavailable
Unavailable
Unavailable
Available
Available
Unavailable
Unavailable
Unavailable
Unavailable
Unavailable
Available
Available
Delay Time Shutdown
Combination
*1
Function
(1)
(1)
(1)
(2)
(1)
(1)
(3)
(3)
(3)
(3)
(1)
(1)
No
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
*1.
Refer to the
Table 3
about the details of the delay time combinations (1) to (3).
Remark 1.
Please contact our sales office for the products with detection voltage value other than those specified above.
2.
x: G or U
3.
Please select products of environmental code = U for Sn 100%, halogen-free products.
Table 3
Delay Time
Combination
(1)
(2)
(3)
Remark
Overcharge
Detection
Delay Time
[t
CU
]
1.2 s
1.2 s
1.2 s
Overdischarge
Detection
Delay Time
[t
DL
]
150 ms
75 ms
150 ms
Discharge Overcurrent
Detection
Delay Time
[t
DIOV
]
9 ms
9 ms
18 ms
Load Short-circuiting
Detection
Delay Time
[t
SHORT
]
300
μs
300
μs
300
μs
The delay times can be changed within the range listed
Table 4.
For details, please contact our sales office.
Table 4
Delay Time
Overcharge detection delay time
Overdischarge detection delay time
Discharge overcurrent detection delay time
Load short-circuiting detection delay time
Remark
Symbol
t
CU
t
DL
t
DIOV
t
SHORT
Selection Range
143 ms
38 ms
4.5 ms
−
573 ms
150 ms
9 ms
300
μs
1.2 s
300 ms
18 ms
560
μs
Remark
Select a value from the left.
Select a value from the left.
Select a value from the left.
Select a value from the left.
The value surrounded by bold lines is the delay time of the standard products.
Seiko Instruments Inc.
5
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