S-8261 Series

www.ablicinc.com

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 (25C) and

30

mV (5C to

55C)

*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

40C

to

85C

(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

BATTERY PROTECTION IC FOR 1-CELL PACK

S-8261 Series



Block Diagram

DP

Rev.5.4

_03

Output control circuit

0 V battery charge circuit

or 0 V battery charge

inhibition circuit

Oscillator control

circuit

VDD

DO

Divider control

circuit

CO

Charger detection circuit

＋

－

＋

－

Overcurrent 1

detection comparator

R

VMD

VM

R

VMS

Overcharge

detection

comparator

＋

－

＋

Overcurrent 2

detection comparator

－

Overdischarge

detection

comparator

＋

－

Load short-circuiting detection comparator

VSS

Remark

All the diodes shown in the figure are parasitic diodes.

Figure 1

2

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

BATTERY PROTECTION IC FOR 1-CELL PACK

S-8261 Series

3. Product Name List

Table 1 (1 / 2)

Overcharge Overcharge Overdischarge Overdischarge Overcurrent 1

detection

hysteresis

detection

hysteresis

detection

voltage

[V

CU

]

[V

HC

]

[V

DL

]

[V

HD

]

[V

IOV1

]

4.280 V

4.325 V

4.300 V

4.275 V

4.280 V

4.325 V

4.280 V

4.300 V

4.275 V

4.350 V

4.280 V

4.350 V

4.275 V

4.300 V

4.275 V

4.280 V

4.100 V

4.275 V

4.280 V

4.300 V

4.200 V

4.275 V

4.280 V

4.275 V

4.325 V

4.280 V

4.250 V

4.350 V

3.900 V

4.280 V

4.465 V

4.250 V

4.275 V

4.280 V

0.20 V

0.25 V

0.10 V

0.20 V

0.25 V

0.20 V

0.10 V

0.25 V

0.20 V

0.25 V

0.20 V

0.10 V

0.20 V

0.10 V

0.20 V

0.10 V

0.25 V

0.20 V

0.25 V

0.10 V

0.20 V

0.30 V

0.20 V

0.10 V

0.20 V

2.300 V

2.500 V

2.300 V

2.500 V

2.300 V

2.500 V

2.300 V

3.000 V

2.500 V

2.300 V

2.800 V

2.300 V

2.800 V

2.500 V

3.000 V

2.300 V

2.500 V

2.300 V

2.600 V

2.300 V

2.000 V

2.300 V

2.100 V

2.400 V

2.300 V

2.800 V

0V

0.4 V

0V

0.1 V

0V

0.4 V

0V

0.1 V

0.4 V

0V

0.4 V

0V

0.1 V

0.4 V

0.5 V

0.4 V

0.1 V

0.4 V

0V

0.3 V

0.7 V

0.3 V

0V

0.5 V

0.1 V

0V

0.160 V

0.080 V

0.150 V

0.080 V

0.200 V

0.100 V

0.130 V

0.100 V

0.150 V

0.080 V

0.100 V

0.200 V

0.130 V

0.200 V

0.080 V

0.150 V

0.050 V

0.100 V

0.060 V

0.150 V

0.180 V

0.080 V

0.100 V

0.150 V

0.130 V

0.120 V

0.250 V

0.100 V

0.150 V

0.100 V

0.150 V

0.130 V

0 V battery

charge

function

Available

Unavailable

Available

Unavailable

Available

Unavailable

Available

Unavailable

Available

Unavailable

Available

Unavailable

Available

Unavailable

Available

Unavailable

Available

Rev.5.4

_03

Product name

S-8261AAGMD-G2GT2x

S-8261AAHMD-G2HT2x

S-8261AAJMD-G2JT2x

S-8261AALMD-G2LT2x

S-8261AAMMD-G2MT2x

S-8261AANMD-G2NT2x

S-8261AAOMD-G2OT2x

S-8261AAPMD-G2PT2x

S-8261AARMD-G2RT2x

S-8261AASMD-G2ST2x

S-8261AATMD-G2TT2x

S-8261AAUMD-G2UT2x

S-8261AAXMD-G2XT2x

S-8261AAZMD-G2ZT2x

S-8261ABAMD-G3AT2x

S-8261ABBMD-G3BT2x

S-8261ABCMD-G3CT2x

S-8261ABIMD-G3IT2x

S-8261ABJMD-G3JT2x

S-8261ABKMD-G3KT2x

S-8261ABLMD-G3LT2x

S-8261ABMMD-G3MT2x

S-8261ABNMD-G3NT2x

S-8261ABPMD-G3PT2x

S-8261ABRMD-G3RT2x

S-8261ABSMD-G3ST2x

S-8261ABTMD-G3TT2x

S-8261ABYMD-G3YT2x

S-8261ABZMD-G3ZT2x

S-8261ACAMD-G4AT2x

S-8261ACBMD-G4BT2x

S-8261ACDMD-G4DT2x

S-8261ACEMD-G4ET2x

S-8261ACFMD-G4FT2x

S-8261ACHMD-G4HT2x

S-8261ACIMD-G4IT2x

S-8261ACJMD-G4JT2x

S-8261ACKMD-G4KT2x

Delay

time

combi-

*1

nation

(1)

(2)

(3)

(4)

(1)

(4)

(1)

(5)

(1)

(5)

(1)

(5)

(6)

(1)

(7)

(1)

(8)

(9)

(1)

Power-down

function

Yes

No

Yes

No

Yes

*1.

Refer to the

Table 2

about the details of the delay time combinations (1) to (9).

Remark 1.

2.

3.

Please contact our sales office for the products with detection voltage value other than those specified above.

x: G or U

Please select products of environmental code = U for Sn 100%, halogen-free products.

4

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

[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

3.000 V

2.300 V

0.4 V

0.1 V

0.060 V

0.130 V

0.150 V

0 V battery

charge

function

Unavailable

Available

Delay

time

combi-

*1

nation

(1)

(6)

Power-down

function

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

4.6 s

1.2 s

0.3 s

Overdischarge

detection

delay time

[t

DL

]

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

18 ms

9 ms

Overcurrent 2

detection

delay time

[t

lOV2

]

2.24 ms

9 ms

2.24 ms

1.12 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.

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

参数名称	属性值
Product Attribute	Attribute Value
制造商 Manufacturer	Seiko-Instruments
产品种类 Product Category	Battery Management
RoHS	Details
封装 / 箱体 Package / Case	SOT-23-6
系列 Packaging	Reel
工厂包装数量 Factory Pack Quantity	3000
单位重量 Unit Weight	0.003951 oz

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