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PDF S-8253C Data sheet ( Hoja de datos )
| Número de pieza | S-8253C | |
| Descripción | BATTERY PROTECTION IC | |
| Fabricantes | Seiko Instruments | |
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S-8253C/D Series
www.sii-ic.com
© Seiko Instruments Inc., 2008-2010
BATTERY PROTECTION IC
FOR 2-SERIES OR 3-SERIES-CELL PACK
Rev.2.0_00
The S-8253C/D Series is a protection ICs for 2-series or 3-series cell lithium-ion rechargeable battery and includes high-
accuracy voltage detector and delay circuit.
This IC is suitable for protecting lithium-ion battery packs from overcharge, overdischarge and overcurrent.
Features
(1) High-accuracy voltage detection for each cell
• Overcharge detection voltage n (n = 1 to 3)
• Overcharge release voltage n (n = 1 to 3)
3.9 V to 4.4 V (50 mV step)
3.8 V to 4.4 V *1
Accuracy ±25 mV
Accuracy ±50 mV
• Overdischarge detection voltage n (n = 1 to 3)
• Overdischarge release voltage n (n = 1 to 3)
2.0 V to 3.0 V (100 mV step)
2.0 V to 3.4 V *2
Accuracy ±80 mV
Accuracy ±100 mV
(2) Three-level overcurrent detection (Including load short circuiting detection)
• Overcurrent detection voltage 1 0.05 V to 0.30 V (50 mV step) Accuracy ±25 mV
• Overcurrent detection voltage 2 0.5 V (Fixed)
• Overcurrent detection voltage 3 1.2 V (Fixed)
(3) Delay time (Overcharge, Overdischarge, Overcurrent) is available by only using an internal circuit. (External
capacitors are unnecessary).
(4) Charge / discharge operation can be inhibited by the control pin.
(5) 0 V battery charge function available / unavailable are selectable.
(6) High-voltage withstand devices
Absolute maximum rating 26 V
(7) Wide range of operating voltage
2 V to 24 V
(8) Wide range of operating temperature −40°C to +85°C
(9) Low current consumption
• Operation mode
28 μA max. (+25°C)
• Power-down mode 0.1 μA max. (+25°C)
(10) Lead-free, Sn100%, halogen-free*3
*1. Overcharge release voltage = Overcharge detection voltage − Overcharge hysteresis voltage
(Overcharge hysteresis voltage n (n = 1 to 3) can be selected in 0 V, or in 0.1 V to 0.4 V in 50 mV step.)
*2. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage
(Overdischarge hysteresis voltage n (n = 1 to 3) can be selected in 0 V, or in 0.2 V to 0.7 V in 100 mV step.)
*3. 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  
Rev.2.0_00
BATTERY PROTECTION IC FOR 2-SERIES OR 3-SERIES-CELL PACK
S-8253C/D Series
3. Product Name List
Table 1 S-8253C Series (For 2-Serial Cell)
Model No.
S-8253CAA-T8T1
S-8253CAD-T8T1
S-8253CAH-T8T1
S-8253CAI-T8T1
Overcharge
detection voltage
[VCU]
4.350 ±0.025 V
4.250 ±0.025 V
4.350 ±0.025 V
4.250 ±0.025 V
Overcharge
release voltage
[VCL]
4.050 ±0.050 V
4.050 ±0.050 V
4.150 ±0.050 V
4.050 ±0.050 V
Overdischarge
detection voltage
[VDL]
2.40 ±0.080 V
2.40 ±0.080 V
2.30 ±0.080 V
2.40 ±0.080 V
Overdischarge
release voltage
[VDU]
2.70 ±0.100 V
2.70 ±0.100 V
2.30 ±0.080 V
2.70 ±0.100 V
Overcurrent
detection voltage 1
[VIOV1]
0.300 ±0.025 V
0.120 ±0.025 V
0.090 ±0.025 V
0.200 ±0.025 V
0 V battery
charge function
Available
Available
Available
Available
Model No.
S-8253DAA-T8T1
S-8253DAB-T8T1
S-8253DAD-T8T1y
S-8253DAI-T8T1
S-8253DAK-T8T1y
Table 2 S-8253D Series (For 3-Series Cell)
Overcharge
detection voltage
[VCU]
4.350 ±0.025 V
4.300 ±0.025 V
4.250 ±0.025 V
4.350 ±0.025 V
4.350 ±0.025 V
Overcharge
release voltage
[VCL]
4.050 ±0.050 V
4.050 ±0.050 V
4.050 ±0.050 V
4.150 ±0.050 V
4.050 ±0.050 V
Overdischarge
detection voltage
[VDL]
2.40 ±0.080 V
2.70 ±0.080 V
2.40 ±0.080 V
2.20 ±0.080 V
2.40 ±0.080 V
Overdischarge
release voltage
[VDU]
2.70 ±0.100 V
3.00 ±0.100 V
2.70 ±0.100 V
2.40 ±0.100 V
2.70 ±0.100 V
Overcurrent
detection voltage 1
[VIOV1]
0.300 ±0.025 V
0.200 ±0.025 V
0.120 ±0.025 V
0.160 ±0.025 V
0.300 ±0.025 V
0 V battery
charge function
Available
Unavailable
Available
Available
Available
Remark 1. : GZ or U
y: S or U
2. Please select products of environmental code = U for Sn 100%, halogen-free products.
Seiko Instruments Inc.
5
5 Page 
Rev.2.0_00
BATTERY PROTECTION IC FOR 2-SERIES OR 3-SERIES-CELL PACK
S-8253C/D Series
Test Circuits
1. Overcharge Detection Voltage 1, Overcharge Release Voltage 1, Overdischarge Detection Voltage 1,
Overdischarge Release Voltage 1
(Test Condition 1, Test Circuit 1)
Confirm that V1 = V2 = 3.5 V (S-8253C Series), V1 = V2 = V3 = 3.5 V (S-8253D Series), V4 = 0 V, V5 = 0 V, and the
COP and DOP pins are “L” (VDD × 0.1 V or lower) (this status is referred to as the initial status).
1. 1 Overcharge Detection Voltage 1 (VCU1), Overcharge Release Voltage 1 (VCL1)
Overcharge detection voltage 1 (VCU1) is the voltage of V1 when the voltage of the COP pin is “H” (VDD × 0.9 V or
more) after the V1 voltage has been gradually increased starting at the initial status. Overcharge release voltage
1 (VCL1) is the voltage of V1 when the voltage at the COP pin is low after the V1 voltage has been gradually
decreased.
1. 2 Overdischarge Detection Voltage 1 (VDL1), Overdischarge Release Voltage 1 (VDU1)
Overdischarge detection voltage 1 (VDL1) is the voltage of V1 when the voltage of the DOP pin is high after the V1
voltage has been gradually decreased starting at the initial status. Overdischarge release voltage 1 (VDU1) is the
voltage of V1 when the voltage at the DOP pin is low after the V1 voltage has been gradually increased.
By changing Vn (n = 2: S-8253C Series, n = 2, 3: S-8253D Series) the overcharge detection voltage (VCUn),
overcharge release voltage (VCLn), overdischarge detection voltage (VDLn), and overdischarge release voltage (VDUn)
can be measured in the same way as when n = 1.
2. Overcurrent Detection Voltage 1, Overcurrent Detection Voltage 2, Overcurrent Detection Voltage 3
(Test Condition 2, Test Circuit 1)
Confirm that V1 = V2 = 3.5 V (S-8253C Series), V1 = V2 = V3 = 3.5 V (S-8253D Series), V4 = 0 V, V5 = 0 V, and the
COP pin and DOP pin are low (this status is referred to as the initial status).
2. 1 Overcurrent Detection Voltage 1 (VIOV1)
Overcurrent detection voltage 1 (VIOV1) is the voltage of V5 when the voltages of the COP pin and DOP pin are
high after the V5 voltage has been gradually increased starting at the initial status.
2. 2 Overcurrent Detection Voltage 2 (VIOV2)
Overcurrent detection voltage 2 (VIOV2) is a voltage at V5 when; by increasing a voltage at V5 instantaneously
(within 10 μs) from the initial state, the voltages of the COP and DOP pin are set to “H”, and its delay time is in the
range of minimum to maximum value of overcurrent detection delay time 2 (tIOV2).
2. 3 Overcurrent Detection Voltage 3 (VIOV3)
Overcurrent detection voltage 3 (VIOV3) is a voltage at V5 when; by increasing a voltage at V5 instantaneously
(within 10 μs) from the initial state, the voltages of the COP and DOP pin are set to “H”, and its delay time is in the
range of minimum to maximum value of overcurrent detection delay time 3 (tIOV3).
Seiko Instruments Inc.
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet S-8253C.PDF ] | |
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