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Número de pieza | S-8201 | |
Descripción | Battery Protection IC | |
Fabricantes | Seiko Instruments | |
Logotipo | ||
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BATTERY PROTECTION IC FOR SINGLE-CELL PACK S-8201 Series
The S-8201 Series are lithium-ion/lithium polymer
rechargeable battery protection ICs incorporating high-
accuracy voltage detection circuit and delay circuit.
The S-8201 Series are 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 4.4 V (5 mV step),
• Overcharge release voltage
Accuracy ±25 mV (+25 °C), ±30 mV (−5 °C to +55 °C)
3.8 V to 4.4 V*1,
Accuracy ±50mV
• Overdischarge detection voltage 2.0 V to 3.0 V (10 mV step), Accuracy ±50 mV
• Overdischarge release voltage 2.0 V to 3.4 V*2,
Accuracy ±100 mV
• Overcurrent 1 detection voltage 0.05 V to 0.3 V (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 pin and CO pin: 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) The overcharge timer reset delay time (7 ms to 40 ms) is generated by an internal circuit only. (No
external capacitor is necessary.)
(5) Three-step overcurrent detection circuit is included. (Overcurrent 1, Overcurrent 2, Load short-circuiting)
(6) Either charge function or charge inhibition function for 0 V battery can be selected.
(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
3.5 µA typ., 7.0 µA max.
• Power-down
0.1 µA max.
(9) Wide operating temperature range −40 °C to +85°C
(10) Small package
6-Pin SOT-23-6, 6-Pin SNB(B)
*1. The overcharge hysteresis voltage is 0.0 V or can be selected from the range 0.1 V to 0.4 V in 50 mV
step.
Overcharge hysterests voltage (VHC)=Overcharge detection voltage−Overcharge release voltage
*2. The overdischarge hysteresis voltage is 0.0 V or can be selected from the range 0.1 V to 0.7 V in
100 mV step.
Overdischarge hysteresis voltage (VHD)=Overdischarge release voltage−Overdischarge detection
voltage
Applications
• Lithium-ion rechargeable battery packs
• Lithium polymer rechargeable battery packs
Seiko Instruments Inc.
1
1 page www.DataSheet4U.com
Rev.2.0_00
BATTERY PROTECTION IC FOR SINGLE-CELL PACK
S-8201 Series
2. Product Name List
2-1. A type
Overdischarge
Model No./Item
detection
voltage
S-8201AAABD-M5A-TF 4.3 V
S-8201AABBD-M5B-TF 4.305 V
S-8201AACBD-M5C-TF 4.295 V
S-8201AADBD-M5D-TF 4.325 V
S-8201AAEBD-M5E-TF 4.350 V
S-8201AAFBD-M5F-TF 4.350 V
Table 1 (1/2)
Overcharge
release
voltage
4.1 V
4.005 V
3.995 V
4.075 V
4.150 V
4.150 V
Overdischarge
detection
voltage
2.3 V
2.3 V
2.3 V
2.5 V
2.3 V
2.3 V
Overdischarge
release
voltage
2.3 V
2.9 V
2.9 V
2.9 V
3.0 V
3.0 V
Overcurrent 1
detection
voltage
0.13 V
0.1 V
0.1 V
0.15 V
0.20 V
0.20 V
0 V battery
charge
function
Available
Available
Available
Unavailable
Unavailable
Available
Table 1 (2/2)
Model No./Item
Overcharge detection
delay time
Overdischarge detection
delay time
Overcurrent 1 detection
delay time
S-8201AAABD-M5A-TF
4.6 s
150 ms
9 ms
S-8201AABBD-M5B-TF
4.6 s
150 ms
9 ms
S-8201AACBD-M5C-TF
4.6 s
150 ms
9 ms
S-8201AADBD-M5D-TF
1.2 s
150 ms
9 ms
S-8201AAEBD-M5E-TF
1.2 s
150 ms
9 ms
S-8201AAFBD-M5F-TF
1.2 s
150 ms
9 ms
Remark It is possible to change the detection voltages of the product other than above. The delay times can
also be changed within the range-listed bellow. For details, contact SII marketing department.
Table 2
Delay time
Symbol
Selection range
Remarks
Overcharge detection delay time
tCU 0.15 s 1.2 s 4.6 s Choose from the left
Overdischarge detection delay time
tDL 37.5 ms 150 ms 300 ms Choose from the left
Overcurrent 1 detection delay time
tIOV1 4.5 ms 9m s 18 ms Choose from the left
Remark Values surrounded by bold lines are used in standard products.
Seiko Instruments Inc.
5
5 Page www.DataSheet4U.com
Rev.2.0_00
BATTERY PROTECTION IC FOR SINGLE-CELL PACK
S-8201 Series
3-3. S-8201BAA
Table 12
Item
Symbol Condition Remark
Min.
Typ.
Max.
Unit
Test
circuit
[Delay Time] 25 °C
Overcharge detection delay time
tCU 9 — 3.7 4.6 5.5 s 5
Overdischarge detection delay time
tDL 9
—
120 150 180 ms
Overdischarge release delay time
tDU 9 0.94 1.18 1.42
Overcurrent 1 detection delay time
tIOV1
10
—
7.2
9 11
Overcurrent 2 detection delay time
tIOV2
10
—
3.6 4.5 5.4
Load short-circuiting detection delay time tSHORT 10
—
450 600 720 µs
Overcharge timer reset delay time
ttr 13
—
10
18 28 ms
[Delay Time] −40 to 85 °C*1
Overcharge detection delay time
tCU 9 — 2.5 4.6 7.8 s 5
Overdischarge detection delay time
tDL 9
—
83 150 255 ms
Overdischarge release delay time tDU 9 0.65 1.18 2.01
Overcurrent 1 detection delay time
tIOV1
10
—
5
9 15
Overcurrent 2 detection delay time
tIOV2
10
—
2.5 4.5 7.7
Load short-circuiting detection delay time tSHORT 10
—
310 600 1020 µs
Overcharge timer reset delay time
ttr 13
—
7
18 40 ms
*1. Since products are not screened at low and high temperature, the specification for this temperature range is
guaranteed by design.
Seiko Instruments Inc.
11
11 Page |
Páginas | Total 37 Páginas | |
PDF Descargar | [ Datasheet S-8201.PDF ] |
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