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PDF S-8204A Data sheet ( Hoja de datos )
| Número de pieza | S-8204A | |
| Descripción | BATTERY PROTECTION IC | |
| Fabricantes | Seiko | |
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S-8204A Series
www.sii-ic.com
© Seiko Instruments Inc., 2007-2015
BATTERY PROTECTION IC
FOR 3-SERIES OR 4-SERIES CELL PACK
Rev.3.4_00
The S-8204A Series includes high-accuracy voltage detection circuits and delay circuits, in single use, makes it
possible for users to monitor the status of 3-series or 4-series cell lithium-ion rechargeable battery. By switching
the voltage level which is applied to the SEL pin, users are able to use the S-8204A Series either for 3-series or
4-series cell pack.
By cascade connection using the S-8204A Series, it is also possible to protect 6-series or more cells*1
lithium-ion rechargeable battery pack.
*1. Refer to the application note for connection examples of protection circuit for 6-series or more cells.
In case of protecting 5-series cell lithium-ion rechargeable battery pack, contact our sales office.
Features
• High-accuracy voltage detection function for each cell
Overcharge detection voltage n (n = 1 to 4)
Overcharge release voltage n (n = 1 to 4)
3.8 V to 4.6 V (50 mV step)
3.6 V to 4.6 V*1
Accuracy ±25 mV
Accuracy ±50 mV
Overdischarge detection voltage n (n = 1 to 4) 2.0 V to 3.0 V (100 mV step)
Overdischarge release voltage n (n = 1 to 4) 2.0 V to 3.4 V*2
Accuracy ±80 mV
Accuracy ±100 mV
• Discharge overcurrent detection function in 3-step
Discharge overcurrent detection voltage 1
0.05 V to 0.30 V (50 mV step) Accuracy ±15 mV
Discharge overcurrent detection voltage 2
0.5 V (fixed)
Accuracy ±100 mV
Load short-circuit detection voltage
1.0 V (fixed)
Accuracy ±300 mV
• Charge overcurrent detection function
Charge overcurrent detection voltage
−0.25 V to −0.05 V (50 mV step) Accuracy ±30 mV
• Settable by external capacitor; overcharge detection delay time, overdischarge detection delay time,
discharge overcurrent detection delay time 1, discharge overcurrent detection delay time 2, charge
overcurrent detection delay time
(Load short-circuit detection delay time is internally fixed.)
• Switchable between 3-series and 4-series cell by using the SEL pin
• Independent charge and discharge control by the control pins
• High-withstand voltage element
Absolute maximum rating: 24 V
• Wide operation voltage range
2 V to 22 V
• Wide operation temperature range
Ta = −40°C to +85°C
• Low current consumption
During operation
33 μA max. (Ta = +25°C)
During power-down
• Lead-free, Sn 100%, halogen-free*3
0.1 μA max. (Ta = +25°C)
*1. Overcharge hysteresis voltage n (n = 1 to 4) is selectable in 0 V, or in 0.1 V to 0.4 V in 50 mV step.
(Overcharge hysteresis voltage = Overcharge detection voltage − Overcharge release voltage)
*2. Overdischarge hysteresis voltage n (n = 1 to 4) is selectable in 0 V, or in 0.2 V to 0.7 V in 100 mV step.
(Overdischarge hysteresis voltage = Overdischarge release voltage − Overdischarge detection voltage)
*3. Refer to " Product Name Structure" for details.
Application
• Rechargeable lithium-ion battery pack
Package
• 16-Pin TSSOP
Seiko Instruments Inc.
1
1 page  
Rev.3.4_00
BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK
S-8204A Series
Absolute Maximum Ratings
Table 4
Item
Input voltage between VDD pin
and VSS pin
Input pin voltage
VMP pin input voltage
DOP pin output voltage
COP pin output voltage
Symbol
VDS
VIN
VVMP
VDOP
VCOP
Applied Pin
−
VC1, VC2, VC3, VC4,
CTLC, CTLD, SEL,
CCT, CDT, CIT, VINI
VMP
DOP
COP
Power dissipation
PD
−
Operation ambient temperature Topr
−
Storage temperature
Tstg
−
*1. When mounted on board
[Mounted board]
(1) Board size: 114.3 mm × 76.2 mm × t1.6 mm
(2) Board name: JEDEC STANDARD51-7
(Ta = +25°C unless otherwise specified)
Absolute Maximum Rating Unit
VSS − 0.3 to VSS + 24
V
VSS − 0.3 to VDD + 0.3
V
VSS − 0.3 to VSS + 24
VSS − 0.3 to VDD + 0.3
VSS − 0.3 to VSS + 24
400 (When not mounted on board)
1100*1
−40 to +85
−40 to +125
V
V
V
mW
mW
°C
°C
Caution The absolute maximum ratings are rated values exceeding which the product could suffer
physical damage. These values must therefore not be exceeded under any conditions.
1200
1000
800
600
400
200
0
0 50 100 150
Ambient Temperature (Ta) [°C]
Figure 3 Power Dissipation of Package (When Mounted on Board)
Seiko Instruments Inc.
5
5 Page 
Rev.3.4_00
BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK
S-8204A Series
5. 3 VC1 pin current (IVC1), VC2 pin current (IVC2), VC3 pin current (IVC3), VC4 pin current (IVC4)
In the initial status, each current flows in the VC1 pin, VC2 pin, VC3 pin, VC4 pin is the VC1 pin
current (IVC1), the VC2 pin current (IVC2), the VC3 pin current (IVC3), the VC4 pin current (IVC4),
respectively.
5. 4 CTLC pin current "H" (ICTLCH), CTLC pin current "L" (ICTLCL)
In the initial status, the current which flows in the CTLC pin is the CTLC pin current "L" (ICTLCL). After
that, increasing the CTLC pin's voltage gradually, the maximum current which flows in the CTLC pin is
the CTLC pin current "H" (ICTLCH).
5. 5 CTLD pin current "H" (ICTLDH), CTLD pin current "L" (ICTLDL)
In the initial status, a current which flows in the CTLD pin is the CTLD pin current "L" (ICTLDL). After
that, increasing the CTLD pin's voltage gradually, the maximum current which flows in the CTLD pin is
the CTLD pin current "H" (ICTLDH).
5. 6 SEL pin current "H" (ISELH), SEL pin current "L" (ISELL)
In the initial status, a current which flows in the SEL pin is the SEL pin current "H" (ISELH). After that, a
current which flows in the SEL pin when setting VSEL = VSS is the SEL pin current "L" (ISELL).
5. 7 COP pin Leakage current (ICOH), COP pin sink current (ICOL)
Start from the initial status, set VCOP = VSS + 0.5 V, a current which flows in the COP pin is the COP pin
sink current (ICOL). After that, a current which flows in the COP pin when setting V1 = V2 = V3 = V4 =
5.5 V, VCOP = VDD is the COP pin leakage current (ICOH).
5. 8 DOP pin source current (IDOH), DOP pin sink current (IDOL)
Start from the initial status, set VDOP = VSS + 0.5 V, a current which flows in the DOP pin is the DOP pin
sink current (IDOL). After that, a current which flows in the DOP pin when setting V1 = V2 = V3 = V4 =
1.8 V, VDOP = VDD − 0.5 V is the DOP pin source current (IDOH).
Seiko Instruments Inc.
11
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| PDF Descargar | [ Datasheet S-8204A.PDF ] | |
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