S-8261 Series
www.ablicinc.com
© ABLIC Inc., 2001-2016
BATTERY PROTECTION IC FOR 1-CELL PACK
Rev.5.4
_03
The S-8261 Series is a lithium-ion / lithium polymer rechargeable battery protection IC incorporating high-accuracy voltage
detection circuit and delay circuits.
The S-8261 Series is suitable for protection of single-cell lithium-ion / lithium polymer battery packs from overcharge,
overdischarge and overcurrent.
Features
Internal high accuracy voltage detection circuit
Overcharge detection voltage
3.900 V to 4.500 V (applicable in 5 mV step) Accuracy:
25
mV (25C) and
30
mV (5C to
55C)
*1
Overcharge hysteresis voltage
0.1 V to 0.4 V
Accuracy:
25
mV
The overcharge hysteresis voltage can be selected from the range 0.1 V to 0.4 V in 50 mV step.
Overdischarge detection voltage
2.000 V to 3.000 V (applicable in 10 mV step) Accuracy:
50
mV
Overdischarge hysteresis voltage 0.0 V to 0.7 V
*2
Accuracy:
50
mV
The overdischarge hysteresis voltage can be selected from the range 0.0 V to 0.7 V in 100 mV step.
Overcurrent 1 detection voltage
0.050 V to 0.300 V (applicable in 10 mV step) Accuracy:
15
mV
Overcurrent 2 detection voltage
0.500 V (fixed)
Accuracy:
100
mV
(2) High-withstand voltage (VM pin and CO pin: Absolute maximum rating
½
28 V)
(3) Delay times (overcharge: t
CU
, overdischarge: t
DL
, overcurrent 1: t
lOV1
, overcurrent 2: t
lOV2
) are generated by an
internal circuit. No external capacitor is necessary.
Accuracy:
20%
(4) Three-step overcurrent detection circuit is included (overcurrent 1, overcurrent 2 and load short-circuiting).
(5) 0 V battery charge function “Available” / “Unavailable” is selectable.
(6) Power-down function “Yes” / “No” is selectable.
(7) Charger detection function and abnormal charge current detection function
The overdischarge hysteresis is released by detecting negative voltage at the VM pin (0.7 V typ.) (Charger
detection function).
When the output voltage of the DO pin is high and the voltage at the VM pin is equal to or lower than the charger
detection voltage (0.7 V typ.), the output voltage of the CO pin goes low (Abnormal charge current detection
function).
(8) Low current consumption
Operation mode
3.5
A
typ., 7.0
A
max.
Power-down mode
0.1
A
max.
(9) Wide operating temperature range
40C
to
85C
(10) Lead-free, Sn 100%, halogen-free
*3
*1.
Overcharge release voltage
½
Overcharge detection voltage
Overcharge hysteresis voltage (where overcharge
release voltage
3.8 V is prohibited.)
*2.
Overdischarge release voltage
½
Overdischarge detection voltage
Overdischarge hysteresis voltage (where
overdischarge release voltage
3.4 V is prohibited.)
*3.
Refer to “
Product Name Structure”
for details.
(1)
Applications
Lithium-ion rechargeable battery packs
Lithium polymer rechargeable battery packs
Package
SOT-23-6
1
Rev.5.4
_03
Product Name Structure
1. Product Name
S-8261A xx
MD
-
xxx
T2
x
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8261 Series
Environmental code
U: Lead-free (Sn 100%), halogen-free
S: Lead-free, halogen-free
G: Lead-free (for details, please contact our sales office)
IC direction in tape specifications
*1
Product name (abbreviation)
*2
Package name (abbreviation)
MD: SOT-23-6
Serial code
Assigned from AA to ZZ in alphabetical order
*1.
Refer to the tape drawing.
*2.
Refer to “3.
Product Name List”.
2. Package
Drawing code
Tape
MP006-A-C-SD
Package name
SOT-23-6
Package
MP006-A-P-SD
Reel
MP006-A-R-SD
3
Rev.5.4
_03
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8261 Series
Table 1 (2 / 2)
Overcharge Overcharge Overdischarge Overdischarge Overcurrent 1
detection
hysteresis
detection
hysteresis
detection
voltage
voltage
voltage
voltage
voltage
[V
CU
]
[V
HC
]
[V
DL
]
[V
HD
]
[V
IOV1
]
4.325 V
4.215 V
4.350 V
0.20 V
0.10 V
0.10 V
3.000 V
2.300 V
2.300 V
0.4 V
0.1 V
0.1 V
0.060 V
0.130 V
0.150 V
0 V battery
charge
function
Unavailable
Unavailable
Available
Delay
time
combi-
*1
nation
(1)
(1)
(6)
Power-down
function
Yes
Yes
Yes
Product name
S-8261ACMMD-G4MT2x
S-8261ACNMD-G4NT2x
S-8261ACSMD-G4ST2y
*1.
Refer to the
Table 2
about the details of the delay time combinations (1) to (9).
Remark 1.
2.
3.
4.
Please contact our sales office for the products with detection voltage value other than those specified above.
x: G or U
y: S or U
Please select products of environmental code = U for Sn 100%, halogen-free products.
Table 2
Delay time
combination
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
Overcharge
detection
delay time
[t
CU
]
1.2 s
1.2 s
4.6 s
4.6 s
1.2 s
1.2 s
1.2 s
1.2 s
0.3 s
Overdischarge
detection
delay time
[t
DL
]
144 ms
144 ms
36 ms
144 ms
36 ms
144 ms
290 ms
144 ms
36 ms
Overcurrent 1
detection
delay time
[t
lOV1
]
9 ms
4.5 ms
18 ms
9 ms
9 ms
9 ms
18 ms
18 ms
9 ms
Overcurrent 2
detection
delay time
[t
lOV2
]
2.24 ms
2.24 ms
9 ms
2.24 ms
2.24 ms
1.12 ms
2.24 ms
2.24 ms
1.12 ms
Load short-circuiting
detection
delay time
[t
SHORT
]
320
s
320
s
320
s
320
s
320
s
320
s
320
s
320
s
320
s
Remark
The delay times can be changed within the range listed
Table 3.
For details, please contact our sales office.
Table 3
Delay time
Symbol
Selection range
1.2 s
*1
0.15 s
144 ms
*1
36 ms
9 ms
*1
4.5 ms
2.24 ms
*1
1.12 ms
320
s
*1
Remarks
4.6 s
290 ms
18 ms
600
s
Choose from the left.
Choose from the left.
Choose from the left.
Choose from the left.
Choose from the left.
Overcharge detection delay time
t
CU
Overdischarge detection delay time
t
DL
Overcurrent 1 detection delay time
t
lOV1
Overcurrent 2 detection delay time
t
lOV1
Load short-circuiting detection delay time
t
SHORT
*1.
The value is the delay time of the standard products.
5
PCB Design
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