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PDF S-8232 Data sheet ( Hoja de datos )
| Número de pieza | S-8232 | |
| Descripción | BATTERY PROTECTION IC | |
| Fabricantes | Seiko | |
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S-8232 Series
www.sii-ic.com
© Seiko Instruments Inc., 1999-2015
BATTERY PROTECTION IC
FOR 2-SERIAL-CELL PACK
Rev.6.2_00
The S-8232 series is a lithium-ion / lithium-polymer rechargeable battery protection IC incorporating high-
accuracy voltage detection circuit and delay circuit.
The S-8232 series is suitable for 2-cell serial lithium-ion / lithium-polymer battery packs.
Features
(1) Internal high-accuracy voltage detection circuit
• Overcharge detection voltage 3.85 V ± 25 mV to 4.60 V ± 25 mV Applicable in 5 mV step
• Overcharge release voltage
3.60 V ± 50 mV to 4.60 V ± 50 mV Applicable in 5 mV step
(The overcharge release voltage can be selected within the range where a difference from overcharge
detection voltage is 0 V to 0.3 V.)
• Overdischarge detection voltage 1.70 V ± 80 mV to 2.60 V ± 80 mV Applicable in 50 mV step
• Overdischarge release voltage 1.70 V ± 100 mV to 3.80 V ± 100 mV Applicable in 50 mV step
(The overdischarge release voltage can be selected within the range where a difference from
overdischarge detection voltage is 0 V to 1.2 V.)
• Overcurrent detection voltage 1 0.07 V ± 20 mV to 0.30 V ± 20 mV Applicable in 5 mV step
(2) High input-voltage device : Absolute maximum ratings 18 V.
(3) Wide operating voltage range : 2.0 V to 16 V
(4) The delay time for every detection can be set via an external capacitor.
(Each delay time for Overcharge detection, Overdischarge detection, Overcurrent detection are
“Proportion of hundred to ten to one”.)
(5) Two overcurrent detection levels (Protection for short-circuiting)
(6) Internal auxiliary over voltage detection circuit (Fail-safe for overcharge detection voltage)
(7) Internal charge circuit for 0 V battery (Unavailable is option)
(8) Low current consumption
• Operation mode 7.5 μA typ. 14.2 μA max. (− 40°C to + 85°C)
• Power-down mode 0.2 nA typ. 0.1 μA max. (− 40°C to + 85°C)
(9) Lead-free, Sn100%, halogen-free*1
*1. Refer to “ Product Name Structure” for details.
Applications
• Lithium-ion rechargeable battery packs
• Lithium- polymer rechargeable battery packs
Package
• 8-Pin TSSOP
Seiko Instruments Inc.
1
1 page  
Rev6.2_00
BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK
S-8232 Series
Table 1 (2 / 2)
Product name
S-8232NNFT-T2-x
Overcharge
detection
voltage 1, 2
[VCU]
4.28 V ± 25 mV
Overcharge
release voltage 1, 2
[VCD]
4.08 V ± 50 mV*3
Overdischarge
detection
voltage 1, 2
[VDD]
2.20 V ± 80 mV
Overdischarge
release
voltage1, 2
[VDU]
2.40 V ± 100 mV
Overcurrent
detection
voltage 1
[VIOV1]
Overcharge
detection 0 V battery
delay time charging
[tCU] function
(C3 = 0.22 μF)
0.13 V ± 20 mV
1.0 s Unavailable
S-8232NOFT-T2-x 4.295 V ± 25 mV 4.045 V ± 50 mV*3 2.20 V ± 80 mV 2.40 V ± 100 mV 0.13 V ± 20 mV
1.0 s Unavailable
S-8232NPFT-T2-x 4.25 V ± 25 mV 4.05 V ± 50 mV 2.30 V ± 80 mV 3.00 V ± 100 mV 0.30 V ± 20 mV
1.0 s Unavailable
S-8232NQFT-T2-x 4.25 V ± 25 mV 4.05 V ± 50 mV 2.60 V ± 80 mV 3.00 V ± 100 mV 0.30 V ± 20 mV
1.0 s Unavailable
S-8232NRFT-T2-x 4.15 V ± 25 mV 3.95 V ± 50 mV 2.60 V ± 80 mV 3.00 V ± 100 mV 0.30 V ± 20 mV
1.0 s Unavailable
S-8232NSFT-T2-x 4.15 V ± 25 mV 3.95 V ± 50 mV 2.30 V ± 80 mV 3.00 V ± 100 mV 0.30 V ± 20 mV
1.0 s Unavailable
S-8232NTFT-T2-x 4.225 V ± 25 mV 4.15 V ± 50 mV 2.00 V ± 80 mV 2.00 V ± 80 mV 0.09 V ± 20 mV
1.0 s Unavailable
S-8232NUFT-T2-x 3.85 V ± 25 mV 3.75 V ± 50 mV 2.23 V ± 80 mV 2.23 V ± 80 mV 0.15 V ± 20 mV
1.0 s
Available
S-8232NWFT-T2-x 4.21 V ± 25 mV 4.125 V ± 50 mV 2.00 V ± 80 mV 2.00 V ± 80 mV 0.09 V ± 20 mV 1.0 s Unavailable
S-8232NXFT-T2-x 4.25 V ± 25 mV 4.05 V ± 50 mV 2.80 V ± 80 mV 3.10 V ± 100 mV 0.30 V ± 20 mV 1.0 s Unavailable
S-8232NYFT-T2-x 4.25 V ± 25 mV 4.15 V ± 50 mV 2.90 V ± 80 mV 3.10 V ± 100 mV 0.30 V ± 20 mV 1.0 s Unavailable
S-8232NZFT-T2-x 4.21 V ± 25 mV 3.98 V ± 50 mV 2.30 V ± 80 mV 2.90 V ± 100 mV 0.11 V ± 20 mV 1.0 s Unavailable
S-8232PAFT-T2-x 4.305 V ± 25 mV 4.125 V ± 50 mV 2.00 V ± 80 mV 2.00 V ± 80 mV 0.09 V ± 20 mV 1.0 s Unavailable
S-8232PBFT-T2-y 4.35 V ± 25 mV 4.15 V ± 50 mV 2.30 V ± 80 mV 3.00 V ± 100 mV 0.20 V ± 20 mV 1.0 s Unavailable
S-8232PCFT-T2-x 4.21 V ± 25 mV 4.00 V ± 50 mV 2.40 V ± 80 mV 3.00 V ± 100 mV 0.20 V ± 20 mV 1.0 s Unavailable
S-8232PFFT-T2-U 4.225 V ± 25 mV 4.025 V ± 50 mV*2 2.70 V ± 80 mV 3.40 V ± 100 mV 0.15 V ± 20 mV 1.0 s Unavailable
*1. No overcharge detection / release hysteresis
*2. The magnification of final overcharge is 1.11; the others are 1.25.
*3. No final overcharging function
*4. Refer to the *2 in the “ Operation”.
(Overcharge detection/release hysteresis”, “no final overcharge function”, and “0 V battery charge inhibiting
function)
Remark 1. Please contact our sales office for the products with detection voltage value other than those
specified above.
2. x: G or U
y: S or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.
4. The overdischarge detection voltage can be selected within the range from 1.7 to 3.0 V. When the
overdischarge detection voltage is higher than 2.6 V, the overcharge detection voltage and the
overcharge release voltage are limited as “Table 2”.
Overdischarge
detection voltage 1, 2
[VDD]
1.70 V to 2.60 V
1.70 V to 2.80 V
1.70 V to 3.00 V
Table 2
Overcharge
detection voltage 1, 2
[VCU]
3.85 V to 4.60 V
3.85 V to 4.60 V
3.85 V to 4.50 V
Voltage difference between overcharge detection
voltage and overcharge release voltage
[VCU − VCD]
0 V to 0.30 V
0 V to 0.20 V
0 V to 0.10 V
Seiko Instruments Inc.
5
5 Page 
Rev6.2_00
BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK
S-8232 Series
Test Circuits
(1) Test Condition 1, Test Circuit 1
Set S1 = OFF, V1 = V2 = 3.6 V, and V3 = 0 V under normal status. Increase V1 from 3.6 V gradually.
The V1 voltage when CO = “L” is overcharge detection voltage 1 (VCU1). Decrease V1 gradually. The V1
voltage when CO = “H” is overcharge release voltage 1 (VCD1). Further decrease V1. The V1 voltage
when DO = “L” is overdischarge voltage 1 (VDD1). Increase V1 gradually. The V1 voltage when DO = “H”
is overdischarge release voltage 1 (VDU1). Set S1 = ON, and V1 = V2 = 3.6 V and V3 = 0 V under normal
status. Increase V1 from 3.6 V gradually. The V1 voltage when CO = “L” is auxiliary overcharge detection
voltage 1 (VCUaux1).
(2) Test Condition 2, Test Circuit 1
Set S1 = OFF, V1 = V2 = 3.6 V, and V3 = 0 V under normal status. Increase V2 from 3.6 V gradually.
The V2 voltage when CO = “L” is overcharge detection voltage 2 (VCU2). Decrease V2 gradually. The V2
voltage when CO = “H” is overcharge release voltage 2 (VCD2). Further decrease V2. The V2 voltage
when DO = “L” is overdischarge voltage 2 (VDD2). Increase V2 gradually. The V2 voltage when DO = “H”
is overdischarge release voltage 2 (VDU2). Set S1 = ON, and V1 = V2 = 3.6 V and V3 = 0 V under normal
status. Increase V2 from 3.6 V gradually. The V2 voltage when CO = “L” is auxiliary overcharge
detection voltage 2 (VCUaux2).
(3) Test Condition 3, Test Circuit 1
Set S1 = OFF, V1 = V2 = 3.6 V, and V3 = 0 V under normal status. Increase V3 from 0 V gradually. The
V3 voltage when DO = “L” is overcurrent detection voltage 1 (VIOV1). Set S1 = ON, V1 = V2 = 3.6 V, V3 =
0 under normal status. Increase V3 from 0 V gradually. (The voltage change rate < 1.0 V / ms) V3 − (V1
+ V2) voltage when DO = “L” is overcurrent detection voltage 2 (VIOV2).
(4) Test Condition 4, Test Circuit 2
Set S1 = ON, V1 = V2 = 3.6 V, and V3 = 0 V under normal status and measure current consumption.
Current consumption I1 is the normal status current consumption (IOPE). Set S1 = OFF, V1 = V2 =
1.5 V under overdischarge status and measure current consumption. Current consumption I1 is the
power-down current consumption (IPDN).
(5) Test Condition 5, Test Circuit 2
Set S1 = ON, V1 = V2 = V3 = 1.5 V, and V3 = 2.5 V under overdischarge status. (V1 + V2 − V3) / I2 is the
internal resistance between VCC and VM (RVCM).
Set S1 = ON, V1 = V2 = 3.6 V, and V3 = 1.1 V under overcurrent status. V3 / I2 is the internal resistance
between VSS and VM (RVSM).
(6) Test Condition 6, Test Circuit 3
Set S1 = ON, S2 = OFF, V1 = V2 = 3.6 V, and V3 = 0 V under normal status. Increase V4 from 0 V
gradually. The V4 voltage when I1 = 10 μA is DO voltage “H” (VDO(H)).
Set S1 = OFF, S2 = ON, V1 = V2 = 3.6 V, and V3 = 0.5 V under overcurrent status. Increase V5 from 0 V
gradually. The V5 voltage when I2 = 10 μA is the DO voltage “L” (VDO(L)).
Seiko Instruments Inc.
11
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet S-8232.PDF ] | |
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