S-8241 Series
www.sii-ic.com
© Seiko Instruments Inc., 1999-2013
BATTERY PROTECTION IC
FOR 1-CELL PACK
Rev.9.2
_00
The S-8241 Series is a series of lithium ion/lithium polymer rechargeable battery protection ICs incorporating high-accuracy
voltage detection circuits and delay circuits.
These ICs are suitable for protection of 1-cell lithium ion/lithium polymer rechargeable battery packs from overcharge,
overdischarge and overcurrent.
Features
Internal high-accuracy voltage detection circuit
•
Overcharge detection voltage:
3.9 V to 4.4 V (5 mV-step)
Accuracy of ±25 mV (+25°C) and ± 30 mV (−5 to +55°C)
*1
•
Overcharge release voltage:
3.8 V to 4.4 V Accuracy of ±50 mV
•
Overdischarge detection voltage: 2.0 V to 3.0 V (100 mV-step) Accuracy of ±80 mV
*2
•
Overdischarge release voltage:
2.0 V to 3.4 V Accuracy of ±100 mV
•
Overcurrent 1 detection voltage: 0.05 V to 0.32 V (5 mV-step) Accuracy of ±20 mV
•
Overcurrent 2 detection voltage: 0.5 V (fixed)
Accuracy of ±100 mV
(2) A high voltage withstand device is used for charger connection pins
(VM and CO pins: Absolute maximum rating = 26 V)
(3) Delay times (overcharge: t
CU
; overdischarge: t
DL
; overcurrent 1: t
lOV1
; overcurrent 2: t
lOV2
) are generated
by an internal circuit. (External capacitors are unnecessary.)
Accuracy of ±30%
(4) Internal three-step overcurrent detection circuit (overcurrent 1, overcurrent 2, and load short-circuiting)
(5) Either the 0 V battery charging function or 0 V battery charge inhibiting function can be selected.
(6) Products with and without a power-down function can be selected.
(7) Charger detection function and abnormal charge current detection function
•
The overdischarge hysteresis is released by detecting a negative VM pin voltage (typ.
−1.3
V) (Charger detection
function).
•
If the output voltage at DO pin is high and the VM pin voltage becomes equal to or lower than the charger detection
voltage (typ.
−1.3
V), the output voltage at CO pin goes low (Abnormal charge current detection function).
(8) Low current consumption
•
Operation:
3.0
μA
typ. 5.0
μA
max.
•
Power-down mode: 0.1
μA
max.
(9) Wide operation temperature range:
−40°C
to +85°C
(10) Lead-free, Sn 100%, halogen-free
*3
*1.
Overcharge release voltage = Overcharge detection voltage - Overcharge hysteresis
The overcharge hysteresis can be selected in the range 0.0 V, or 0.1 V to 0.4 V in 50 mV steps. (However, selection
“Overcharge release voltage<3.8 V” is enabled.)
*2.
Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis
The overdischarge hysteresis can be selected in the range 0.0 V to 0.7 V in 100 mV steps. (However, selection
“Overdischarge release voltage>3.4 V” is enabled.)
*3.
Refer to “
Product Name Structure”
for details.
(1)
Applications
•
Lithium-ion rechargeable battery pack
•
Lithium- polymer rechargeable battery pack
Packages
•
SOT-23-5
•
SNT-6A
Seiko Instruments Inc.
1
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8241 Series
Block Diagram
Rev.9.2
_00
Delay circuit
Clock generation circuit
VDD
DO
Load short-
circuiting
detection circuit
Counter circuit
−
+
Overcharge
detection
comparator
Level conversion circuit
0V battery charging circuit
0V battery charge
inhibition circuit
CO
R
COL
Overdischarge
detection
comparator
+
−
The overdischarge
hysterisis is released when
a charger is detected.
Charger
detection circuit
R
VMD
+
−
Overcurrent 1
detection comparator
R
VMS
VM
+
−
Overcurrent 2
detection comparator
VSS
Remark
The diodes in the IC are parasitic diodes.
Figure 1
2
Seiko Instruments Inc.
Rev.9.2
_00
Product Name Structure
1. Product Name
S-8241A xx xx - xxx xx x
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8241 Series
Environmental code
U:
Lead-free (Sn 100%), halogen-free
G : Lead-free (for details, please contact our sales office)
IC direction in tape specifications
T2 : SOT-23-5
TF : SNT-6A
Product name (abbreviation)
2
*1
Package name (abbreviation)
MC : SOT-23-5
PG : SNT-6A
Serial code
Sequentially set from BA to ZZ
*1.
Refer to the tape specifications.
*2.
Refer to the “3.
Product Name List”.
2. Package
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
Package name
SOT-23-5
SNT-6A
Seiko Instruments Inc.
3
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8241 Series
Rev.9.2
_00
3. Product Name List
(1) SOT-23-5
Table 1 (1 / 2)
Over-
charge
detection
voltage
[V
CU
]
4.275 V
4.280 V
4.350 V
4.275 V
4.295 V
4.325 V
4.200 V
4.325 V
4.280 V
4.325 V
4.320 V
4.350 V
4.350 V
4.280 V
4.325 V
4.300 V
4.200 V
4.295 V
4.280 V
4.350 V
4.220 V
4.280 V
4.300 V
4.275 V
4.295 V
4.295 V
4.295 V
4.280 V
4.350 V
4.350 V
4.200 V
4.350 V
4.100 V
4.325 V
4.275 V
4.350 V
4.180 V
4.100 V
4.180 V
4.275 V
4.275 V
Over-
charge
release
voltage
[V
CL
]
4.075 V
3.980 V
4.100 V
4.175 V
4.095 V
4.075 V
4.100 V
4.125 V
4.080 V
4.075 V
4.070 V
4.150 V
4.150 V
4.080 V
4.075 V
4.100 V
4.100 V
4.095 V
4.080 V
4.000 V
4.220 V
4.080 V
4.100 V
4.075 V
4.095 V
4.095 V
4.095 V
4.080 V
4.150 V
4.150 V
4.200 V
4.150 V
3.850 V
4.075 V
4.175 V
4.150 V
3.930 V
4.000 V
4.080 V
4.075 V
4.075 V
Over-
discharge
detection
voltage
[V
DL
]
2.30 V
2.30 V
2.30 V
2.30 V
2.30 V
2.50 V
2.30 V
2.30 V
2.30 V
2.50 V
2.50 V
2.30 V
2.30 V
2.30 V
2.50 V
2.30 V
2.30 V
2.30 V
2.30 V
2.60 V
2.30 V
2.30 V
2.30 V
2.30 V
2.30 V
2.30 V
2.30 V
2.60 V
2.05 V
2.00 V
2.50 V
2.10 V
2.50 V
2.50 V
2.30 V
2.30 V
2.50 V
2.50 V
2.50 V
2.50 V
2.60 V
Over-
discharge
release
voltage
[V
DU
]
2.90 V
2.40 V
2.80 V
2.40 V
3.00 V
2.90 V
3.00 V
2.30 V
2.30 V
2.90 V
2.90 V
3.00 V
3.00 V
2.30 V
2.90 V
2.30 V
2.30 V
2.30 V
2.30 V
3.30 V
2.30 V
2.30 V
2.30 V
2.30 V
2.30 V
2.30 V
2.30 V
2.60 V
2.75 V
2.00 V
3.00 V
2.20 V
2.90 V
2.90 V
2.40 V
3.00 V
2.90 V
2.90 V
2.90 V
2.90 V
2.90 V
Over-
current 1
detection
voltage
[V
IOV1
]
0.100 V
0.125 V
0.075 V
0.100 V
0.200 V
0.100 V
0.100 V
0.100 V
0.160 V
0.150 V
0.100 V
0.150 V
0.200 V
0.130 V
0.100 V
0.100 V
0.150 V
0.130 V
0.130 V
0.200 V
0.200 V
0.200 V
0.150 V
0.100 V
0.080 V
0.090 V
0.060 V
0.200 V
0.200 V
0.200 V
0.100 V
0.200 V
0.150 V
0.150 V
0.100 V
0.100 V
0.150 V
0.150 V
0.150 V
0.150 V
0.100 V
0 V battery
charging
function
Unavailable
Available
Unavailable
Available
Unavailable
Unavailable
Unavailable
Available
Unavailable
Unavailable
Unavailable
Available
Available
Unavailable
Unavailable
Available
Unavailable
Available
Unavailable
Unavailable
Available
Available
Available
Unavailable
Available
Available
Available
Available
Available
Available
Available
Available
Unavailable
Unavailable
Available
Available
Unavailable
Unavailable
Unavailable
Unavailable
Unavailable
Delay
time
combi-
nation
*1
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(4)
(1)
(1)
(1)
(3)
(1)
(3)
(1)
(1)
(4)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
Product Name
Power down
function
S-8241ABAMC-GBAT2x
S-8241ABBMC-GBBT2x
S-8241ABCMC-GBCT2x
S-8241ABDMC-GBDT2x
S-8241ABEMC-GBET2x
S-8241ABFMC-GBFT2x
S-8241ABGMC-GBGT2x
S-8241ABHMC-GBHT2x
S-8241ABIMC-GBIT2x
S-8241ABKMC-GBKT2x
S-8241ABLMC-GBLT2x
S-8241ABOMC-GBOT2x
S-8241ABPMC-GBPT2x
S-8241ABQMC-GBQT2x
S-8241ABRMC-GBRT2x
S-8241ABTMC-GBTT2x
S-8241ABUMC-GBUT2x
S-8241ABVMC-GBVT2x
S-8241ABWMC-GBWT2x
S-8241ABXMC-GBXT2x
S-8241ABYMC-GBYT2x
S-8241ACAMC-GCAT2x
S-8241ACBMC-GCBT2x
S-8241ACDMC-GCDT2x
S-8241ACEMC-GCET2x
S-8241ACFMC-GCFT2x
S-8241ACGMC-GCGT2x
S-8241ACHMC-GCHT2x
S-8241ACIMC-GCIT2x
S-8241ACKMC-GCKT2x
S-8241ACLMC-GCLT2x
S-8241ACNMC-GCNT2x
S-8241ACOMC-GCOT2x
S-8241ACPMC-GCPT2x
S-8241ACQMC-GCQT2x
S-8241ACRMC-GCRT2x
S-8241ACSMC-GCST2x
S-8241ACTMC-GCTT2x
S-8241ACUMC-GCUT2x
S-8241ACXMC-GCXT2x
S-8241ACYMC-GCYT2x
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
4
Seiko Instruments Inc.
Rev.9.2
_00
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8241 Series
Table 1 (2 /2)
Over-
charge
detection
voltage
[V
CU
]
4.350 V
4.185 V
4.350 V
4.350 V
4.275 V
4.250 V
4.280 V
4.350 V
4.275 V
4.220 V
4.230 V
4.250 V
4.275 V
4.250 V
4.250 V
4.180 V
3.900 V
4.100 V
4.275 V
4.100 V
4.150 V
4.180 V
4.280 V
4.100 V
Over-
charge
release
voltage
[V
CL
]
4.150 V
4.085 V
4.150 V
4.150 V
4.075 V
4.050 V
4.280 V
4.350 V
4.275 V
4.070 V
4.080 V
4.100 V
4.175 V
4.100 V
4.150 V
4.180 V
3.900 V
4.000 V
4.175 V
4.000 V
4.050 V
4.080 V
4.130 V
4.000 V
Over-
discharge
detection
voltage
[V
DL
]
2.30 V
2.80 V
2.10 V
2.10 V
2.10 V
2.40 V
2.30 V
2.10 V
2.10 V
2.70 V
2.70 V
2.70 V
2.30 V
2.00 V
2.00 V
2.50 V
2.00 V
2.50 V
2.60 V
2.00 V
2.00 V
2.00 V
3.00 V
2.00 V
Over-
discharge
release
voltage
[V
DU
]
3.00 V
2.90 V
2.20 V
2.10 V
2.10 V
2.90 V
2.30 V
2.10 V
2.10 V
3.00 V
3.00 V
3.00 V
2.40 V
2.70 V
2.70 V
3.00 V
2.30 V
2.70 V
2.70 V
2.20 V
2.70 V
2.70 V
3.20 V
2.70 V
Over-
current 1
detection
voltage
[V
IOV1
]
0.100 V
0.150 V
0.150 V
0.150 V
0.150 V
0.100 V
0.100 V
0.100 V
0.100 V
0.300 V
0.300 V
0.300 V
0.100 V
0.150 V
0.150 V
0.100 V
0.150 V
0.300 V
0.100 V
0.300 V
0.150 V
0.150 V
0.150 V
0.300 V
0 V battery
charging
function
Available
Unavailable
Available
Unavailable
Unavailable
Available
Unavailable
Unavailable
Unavailable
Available
Available
Available
Unavailable
Available
Available
Available
Available
Unavailable
Available
Unavailable
Available
Available
Unavailable
Unavailable
Available
Available
Unavailable
Unavailable
Unavailable
Unavailable
Unavailable
Available
Available
Available
Available
Available
Unavailable
Unavailable
Delay
time
combi-
nation
*1
(1)
(1)
(2)
(5)
(5)
(1)
(5)
(5)
(5)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(6)
(1)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
Product Name
Power down
function
S-8241ADAMC-GDAT2x
S-8241ADDMC-GDDT2x
S-8241ADEMC-GDET2x
S-8241ADFMC-GDFT2x
S-8241ADGMC-GDGT2x
S-8241ADHMC-GDHT2x
S-8241ADIMC-GDIT2x
S-8241ADJMC-GDJT2x
S-8241ADKMC-GDKT2x
S-8241ADLMC-GDLT2x
S-8241ADMMC-GDMT2x
S-8241ADNMC-GDNT2x
S-8241ADOMC-GDOT2x
S-8241ADQMC-GDQT2x
S-8241ADSMC-GDST2x
S-8241ADTMC-GDTT2x
S-8241ADVMC-GDVT2x
S-8241ADWMC-GDWT2x
S-8241ADXMC-GDXT2x
S-8241ADYMC-GDYT2x
S-8241ADZMC-GDZT2x
S-8241AEAMC-GEAT2x
S-8241AEBMC-GEBT2x
S-8241AECMC-GECT2x
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
S-8241AEEMC-GEET2x
4.200 V
4.200 V
2.50 V
3.00 V
0.320 V
S-8241AEFMC-GEFT2x
4.200 V
4.100 V
2.00 V
2.70 V
0.150 V
S-8241AEHMC-GEHT2x
4.350 V
4.150 V
2.10 V
2.20 V
0.250 V
S-8241AEIMC-GEIT2x
4.350 V
4.000 V
2.40 V
3.00 V
0.270 V
S-8241AEJMC-GEJT2x
4.350 V
4.000 V
2.40 V
3.00 V
0.300 V
S-8241AEKMC-GEKT2x
4.350 V
4.000 V
2.40 V
3.00 V
0.280 V
S-8241AEMMC-GEMT2x
4.350 V
4.150 V
2.30 V
3.00 V
0.320 V
S-8241AENMC-GENT2x
4.300 V
4.100 V
2.50 V
3.00 V
0.060 V
S-8241AEOMC-GEOT2x
4.190 V
4.190 V
2.50 V
3.00 V
0.100 V
S-8241AEPMC-GEPT2x
4.215 V
4.115 V
2.80 V
3.00 V
0.100 V
S-8241AEQMC-GEQT2x
4.190 V
4.190 V
2.80 V
3.00 V
0.100 V
S-8241AETMC-GETT2x
4.220 V
4.070 V
2.70 V
3.00 V
0.200 V
S-8241AEUMC-GEUT2x
4.350 V
4.150 V
2.30 V
3.00 V
0.200 V
S-8241AEWMC-GEWT2x
4.325 V
4.075 V
2.50 V
2.90 V
0.125 V
*1.
Refer to the
Table 3
about the details of the delay time combinations (1) to (7).
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.
Seiko Instruments Inc.
5
