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PDF S-8261 Data sheet ( Hoja de datos )
| Número de pieza | S-8261 | |
| Descripción | Battery Protection IC for Single-Cell Pack | |
| Fabricantes | Seiko Instruments | |
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S-8261 Series
www.sii-ic.com
BATTERY PROTECTION IC FOR 1-CELL PACK
© SII Semiconductor Corporation, 2001-2014
Rev.5.4_01
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
(1) Internal high accuracy voltage detection circuit
• Overcharge detection voltage
3.9 V to 4.5 V (applicable in 5 mV step) Accuracy: ±25 mV (+25°C) and
±30 mV (−5°C to +55°C)
• Overcharge hysteresis voltage
0.1 V to 0.4 V*1
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 2.0 V to 3.0 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 0.05 V to 0.3 V (applicable in 10 mV step) Accuracy: ±15 mV
• Overcurrent 2 detection voltage 0.5 V (fixed)
Accuracy: ±100 mV
(2) High voltage device is used for charger connection pins (VM and CO pins: absolute maximum rating = 28 V).
(3) Delay times (overcharge: tCU, overdischarge: tDL, overcurrent 1: tlOV1, overcurrent 2: tlOV2) 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 μA typ., 7.0 μA max.
• Power-down mode 0.1 μA max.
(9) Wide operating temperature range −40°C to +85°C
(10) Lead-free, Sn 100%, halogen-free*3
*1. Overcharge release voltage = Overcharge detection voltage − Overcharge hysteresis voltage (where overcharge
release voltage < 3.8 V is prohibited.)
*2. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage (where
overdischarge release voltage > 3.4 V is prohibited.)
*3. Refer to “ Product Name Structure” for details.
Applications
• Lithium-ion rechargeable battery packs
• Lithium polymer rechargeable battery packs
Package
• SOT-23-6
1
1 page  
Rev.5.4_01
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8261 Series
Table 1 (2 / 2)
Product name
Overcharge
detection
voltage
[VCU]
Overcharge Overdischarge Overdischarge
hysteresis detection hysteresis
voltage
voltage
voltage
[VHC]
[VDL]
[VHD]
Overcurrent 1
detection
voltage
[VIOV1]
0 V battery
charge
function
S-8261ACMMD-G4MT2x 4.325 V 0.20 V 3.00 V
0.4 V
0.06 V Unavailable
S-8261ACNMD-G4NT2x
S-8261ACSMD-G4ST2y
4.215 V 0.10 V
4.350 V 0.10 V
2.30 V
2.30 V
0.1 V
0.1 V
0.13 V Unavailable
0.15 V Available
*1. Refer to the Table 2 about the details of the delay time combinations (1) to (9).
Delay
time
combi-
nation *1
(1)
(1)
(6)
Power-down
function
Yes
Yes
Yes
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
Overcharge
detection
delay time
[tCU]
Overdischarge
detection
delay time
[tDL]
Overcurrent 1
detection
delay time
[tlOV1]
Overcurrent 2
detection
delay time
[tlOV2]
Load short-circuiting
detection
delay time
[tSHORT]
(1) 1.2 s
144 ms
9 ms
2.24 ms
320 μs
(2) 1.2 s
144 ms
4.5 ms
2.24 ms
320 μs
(3) 4.6 s
36 ms
18 ms
9 ms
320 μs
(4) 4.6 s
144 ms
9 ms
2.24 ms
320 μs
(5) 1.2 s
36 ms
9 ms
2.24 ms
320 μs
(6) 1.2 s
144 ms
9 ms
1.12 ms
320 μs
(7) 1.2 s
290 ms
18 ms
2.24 ms
320 μs
(8) 1.2 s
144 ms
18 ms
2.24 ms
320 μs
(9) 0.3 s
36 ms
9 ms
1.12 ms
320 μs
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
Overcharge detection delay time
Overdischarge detection delay time
Overcurrent 1 detection delay time
Overcurrent 2 detection delay time
Load short-circuiting detection delay time
tCU
tDL
tlOV1
tlOV1
tSHORT
*1. The value is the delay time of the standard products.
Selection range
0.15 s
1.2 s*1
4.6 s
36 ms 144 ms*1 290 ms
4.5 ms
9 ms*1
18 ms
1.12 ms 2.24 ms*1
⎯
⎯ 320 μs*1 600 μs
Remarks
Choose from the left.
Choose from the left.
Choose from the left.
Choose from the left.
Choose from the left.
5
5 Page 
Rev.5.4_01
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8261 Series
(3) S-8261AAT
Table 10
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Test
Condition
Test
Circuit
DELAY TIME (Ta = 25°C)
Overcharge detection delay time
Overdischarge detection delay time
tCU
tDL
⎯
3.7 4.6 5.5 s
9
5
⎯
29 36 43 ms 9
5
Overcurrent 1 detection delay time
Overcurrent 2 detection delay time
tlOV1
tlOV2
⎯
14 18 22 ms 10
5
⎯
7.2 9 11 ms 10
5
Load short-circuiting detection delay time tSHORT
⎯
220 320 380 μs
10
5
DELAY TIME (Ta = −40°C to +85°C) *1
Overcharge detection delay time
Overdischarge detection delay time
tCU
tDL
⎯
2.5 4.6 7.8 s
9
5
⎯
20 36 61 ms 9
5
Overcurrent 1 detection delay time
Overcurrent 2 detection delay time
tlOV1
tlOV2
⎯
10 18 31 ms 10
5
⎯
5 9 15 ms 10
5
Load short-circuiting detection delay time tSHORT
⎯
150 320 540 μs
10
5
*1. Since products are not screened at high and low temperatures, the specification for this temperature range is guaranteed by design,
not tested in production.
(4) S-8261AAU, S-8261AAX, S-8261ABA
Table 11
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Test
Condition
Test
Circuit
DELAY TIME (Ta = 25°C)
Overcharge detection delay time
tCU
⎯
3.7 4.6 5.5 s
9
5
Overdischarge detection delay time
Overcurrent 1 detection delay time
tDL
tlOV1
⎯
115 144 173 ms
9
5
⎯
7.2 9 11 ms 10
5
Overcurrent 2 detection delay time
Load short-circuiting detection delay time
DELAY TIME (Ta = −40°C to +85°C) *1
tlOV2
tSHORT
⎯
⎯
1.8 2.24 2.7 ms
220 320 380 μs
10
10
5
5
Overcharge detection delay time
tCU
⎯
2.5 4.6 7.8 s
9
5
Overdischarge detection delay time
Overcurrent 1 detection delay time
tDL
tlOV1
⎯
80 144 245 ms
9
5
⎯
5 9 15 ms 10
5
Overcurrent 2 detection delay time
tlOV2
Load short-circuiting detection delay time tSHORT
⎯
⎯
1.2 2.24 3.8 ms
150 320 540 μs
10
10
5
5
*1. Since products are not screened at high and low temperatures, the specification for this temperature range is guaranteed by design,
not tested in production.
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet S-8261.PDF ] | |
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