S-8204B Seiko, S-8204B Datasheet
S-8204B
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S-8204B Summary of contents
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... Rechargeable lithium-ion battery packs Package Package Name 16-Pin TSSOP The S-8204B Series includes a voltage detection circuit with high accuracy and a delay circuit, 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 this IC either for 3-series or 4- series cell pack ...
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... BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK www.DataSheet4U.com S-8204B Series Block Diagram COP R VMD VMP R VMS DOP VINI CDT CCT CIT SEL Remark Diodes in the figure are parasitic diodes. 2 Control circuit Delay circuit Delay circuit Delay circuit + − Discharge overcurrent 1 + − ...
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... TCT1 : 16-Pin TSSOP, Tape *2 Serial code Sequentially set from Table 1 Overcharge Release Overdischarge Voltage Detection Voltage ] [ Seiko Instruments Inc. S-8204B Series Discharge Overdischarge Overcurrent Release Voltage Detection Voltage DIOV1 2.70 ± 0.100 V 0.25 ± 0.015 V 3.00 ± 0.100 V 0.10 ± 0.015 V 2.30 ± ...
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... BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK www.DataSheet4U.com S-8204B Series Pin Configuration Pin No. Symbol 1 COP 2 VMP 3 DOP 4 VINI 5 CDT 6 CCT 7 CIT 8 SEL 9 VSS 10 VC4 11 VC3 12 VC2 13 VC1 14 VDD 15 CTLD 16 CTLC 4 16-Pin TSSOP Top view COP 1 VMP 2 DOP 3 VINI 4 CDT 5 CCT 6 CIT ...
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... P D − T opr − T stg 1200 1000 800 600 400 200 100 Ambient Temperature (Ta) [°C] Seiko Instruments Inc. S-8204B Series (Ta = 25°C unless otherwise specified) Absolute Maximum Ratings V −0 + −0 +0 −0 + −0 ...
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... BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK www.DataSheet4U.com S-8204B Series Electrical Characteristics Item [ DETECTION VOLTAGE ] Overcharge detection voltage Overcharge release voltage Overdischarge detection voltage Overdischarge release voltage Discharge overcurrent detection ...
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... V −0.5 V COH COP COL COP −0 DOH DOP DD +0 DOL DOP SS Seiko Instruments Inc. S-8204B Series (Ta = 25°C unless otherwise specified) Min. Typ. Max. Unit − − − 13.2 V 10.1 − − V − − 13.2 V − − 10.1 ...
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... BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK www.DataSheet4U.com S-8204B Series Test Circuit In this chapter, describing how to test the S-8204B Series. In case of selecting to use it for 4-series cell battery, set SEL pin = V level. For 3-series cell battery, set SEL pin = Current consumption during operation and power-down (Test circuit 1) 1 ...
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... CCT pin when the COP pin’s voltage is set to “L” CCT ) CDT ) is the voltage at the CDT pin when the DOP pin’s voltage is set to “L” CDT Seiko Instruments Inc. S-8204B Series ) CTLCL ) CTLDL ) SELL × 0 more) after setting V ...
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... BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK www.DataSheet4U.com S-8204B Series 3. 7 CIT pin Detection Voltage (V The CIT pin detection voltage (V × 0 less) after increasing the CIT pin’s voltage gradually, after setting V initial state Short circuit Detection Voltage Delay Time (t Short circuit detection voltage delay time (t “ ...
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... V, a current which flows in the COP pin is the COP pin source = V COP DD ). COL ), DOP Pin Sink Current (I DOH −0 current which flows in the DOP pin is the DOP pin source = V DOP DD ). DOL Seiko Instruments Inc. S-8204B Series ) CTLDL ) ). After that, a current SELH ). SELL ) COL ) DOL ). After that, CTLDH = ...
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... BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK www.DataSheet4U.com S-8204B Series S-8204B 1 COP CTLC 2 VMP CTLD VDD 3 DOP VC1 4 VINI 5 CDT VC2 6 CCT VC3 VC4 7 CIT 8 VSS SEL Figure 4 Test Circuit 1 S-8204B 1 COP 16 CTLC 2 VMP CTLD 15 VDD 3 DOP 14 4 VINI ...
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... S-8204B 1 COP CTLC VMP 15 CTLD A 3 DOP VDD VINI VC1 13 5 CDT VC2 12 6 CCT VC3 11 VC4 7 CIT 10 8 VSS SEL 9 A Figure 7 Test Circuit 4 Seiko Instruments Inc. S-8204B Series 0.1 µ ...
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... The VMP pin voltage Power-down Status In the S-8204B Series, when it reaches the overdischarge status, the VMP pin is pulled down to the V resistor between VMP and VSS pin (R every circuit in the S-8204B stops working so that the current consumption decreases to the level of current consumption at power down (I The power-down status is released if the following condition is satisfied ...
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... This IC has three levels for discharge overcurrent detection (V overcurrent, the COP pin is set in high impedance. The VMP pin is pulled up to the V VMP and VDD pin (R VMD The S-8204B Series’ actions against discharge overcurrent detection voltage 2 (V voltage (V ) are as well in V SHORT The discharge overcurrent status is released if the following condition is satisfied ...
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... S-8204B Series 7. Delay Time Setting In the S-8204B Series, users are able to set delay time for the period; from detecting any voltage of the batteries or detecting changes in the voltage at the VINI pin, to the output to the COP, DOP pin. Each delay time is determined by a resistor in the IC and an external capacitor. ...
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... CTLC and CTLD Pins The S-8204B Series has two pins to control. The CTLC pin controls the output voltage from the COP pin, the CTLD pin controls the output voltage from the DOP pin. Thus it is possible for users to control the output voltages from the COP pin and DOP pin independently ...
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... This setting makes it possible to use the S-8204B Series for 3-cell protection. The control by this SEL pin precedes the battery protection circuit. Be sure to use the SEL pin in “H” or “L”. In cascade connection possible to use the S-8204B Series for protecting 8-cell battery by combining the electrical level of SEL pin. ...
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... Status *1. <1> : Normal status <2> : Overcharge status <3> : Overdischarge status <4> : Power-down status Remark The charger is assumed to charge with a constant current. V charger. High-Z Overdischarge detection Overcharge detection delay time ( <1> <2> <1> Figure 8 Seiko Instruments Inc. S-8204B Series delay time ( <3> <4> <1> indicates the open voltage of the EB- 19 ...
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... BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK www.DataSheet4U.com S-8204B Series 2. Discharge Overcurrent Detection V CUn V CLn Battery voltage V DUn V DLn ( DOP pin voltage COP pin voltage V EB VMP pin voltage SHORT V V VINI pin voltage ...
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... VINI S-8204B 5 CDT 6 CCT C CDT 7 CIT C 8 SEL C CIT CCT R DOP R VINI R SENSE Discharging FET Figure 10 Seiko Instruments Inc. S-8204B Series R CTLC CTLC 16 R CTLD CTLD 15 VDD 14 VC1 13 C VC1 VC2 12 C VC2 VC3 11 C VC3 VC4 10 C VC4 VSS 9 C VDD ...
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... BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK www.DataSheet4U.com S-8204B Series 2. 7-Series Cell (cascade connection without protect overcurrent function) EB+ R VMP1 R IFC R VMP2 D COP R DOP R COP EB− Charging Discharging FET 22 1 COP 2 VMP 3 DOP 4 VINI 5 CDT R VINI1 6 CCT C CDT1 7 CIT C CCT1 8 SEL ...
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... DOP 4 VINI 5 CDT 6 CCT C CDT2 7 CIT C 8 SEL C CIT2 CCT2 D COP R DOP R VINI2 R SENSE Discharging FET Figure 12 Seiko Instruments Inc. S-8204B Series R CTLC CTLC 16 R CTLD CTLD 15 VDD 14 VC1 13 S-8204B C VC1 VC2 12 (1) C VC2 VC3 11 C VC3 VC4 10 C VC4 VSS 9 ...
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... BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK www.DataSheet4U.com S-8204B Series Table 9 Constants for External Components (in the circuit in Figure 11) Symbol VC1 VC5 VC2 VC6 VC3 VC7 VC4 VC8 R DOP R COP VMP1 VMP2 R CTLC R CTLD R VINI SEL1 ...
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... Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic protection circuit. • SII claims no responsibility for any disputes arising out connection with any infringement by products including this IC of patents owned by a third party. Seiko Instruments Inc. S-8204B Series 25 ...
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... BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK www.DataSheet4U.com S-8204B Series Characteristics (Typical Data) 1. Current Consumption 1.1 I vs. V OPE 1.3 I vs. V PDN DS 0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0. Overcharge Detection / Release Voltage, Overdischarge Detection / Release Voltage, Overcurrent Detection Voltage 2 4.375 4 ...
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... V vs. V SHORT DS 1.3 1.2 1.1 1.0 0.9 0 [ [ [V] DS Seiko Instruments Inc. S-8204B Series vs. Ta DIOV1 0.29 0.28 0.27 0.26 0.25 0.24 0.23 0.22 0.21 −40 − [°C] vs. Ta DIOV2 0.58 0.56 0.54 0.52 0.50 0.48 0.46 0.44 0.42 −40 − [°C] vs. Ta SHORT 1.3 1.2 1.1 1.0 0.9 0.8 0.7 −40 −25 ...
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... BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK www.DataSheet4U.com S-8204B Series 3. CCT pin Internal Resistance / Detection Voltage, CDT pin Internal Resistance / Detection Voltage, CIT pin Internal Resistance / Detection Voltage and Short circuit Detection Voltage Delay Time − INC 12.0 11.0 10.0 9.0 8.0 7.0 6.0 −40 − − ...
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... COP / DOP Pin 4.1 I vs. V COH COP 4.3 I vs. V DOH DOP 4.2 I 3 [V] COP 4.4 I 3 [V] DOP Seiko Instruments Inc. S-8204B Series vs. V COL COP 0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0. [V] COP vs. V DOL DOP 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0 1.8 3.6 V [V] ...
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... Use of the information described herein for other purposes and/or reproduction or copying without the express permission of Seiko Instruments Inc. is strictly prohibited. The products described herein cannot be used as part of any device or equipment affecting the human body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of Seiko Instruments Inc ...