s-8215a Seiko Instruments Inc., s-8215a Datasheet
s-8215a
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s-8215a Summary of contents
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... Seiko Instruments Inc., 2010 The S-8215A Series is used for secondary protection of lithium-ion rechargeable batteries, and incorporates a high-accuracy voltage detection circuit and a delay circuit. Short-circuits between VC5 to VSS accommodate series connection of four cells or five cells. Features • High-accuracy voltage detection circuit for each cell Overcharge detection voltage ...
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... BATTERY PROTECTION IC FOR 4-SERIAL / 5-SERIAL CELL PACK (SECONDARY PROTECTION) S-8215A Series Block Diagram VDD VC1 Reference voltage 1 VC2 Reference voltage 2 VC3 Reference voltage 3 VC4 Reference voltage 4 VC5 Reference voltage 5 VSS *1. Only Nch transistor is connected to the CO pin in the case of Nch open- drain output. ...
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... BATTERY PROTECTION IC FOR 4-SERIAL / 5-SERIAL CELL PACK (SECONDARY PROTECTION) Rev.1.1 _00 Product Name Structure 1. Product Name S-8215A xx − xxxx U *1. Refer to the tape specifications at the end of this book. *2. Refer to “3. Product Name List”. 2. Packages Package Name Package SNT-8A PH008-A-P-SD TMSOP-8 FM008-A-P-SD 3 ...
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... BATTERY PROTECTION IC FOR 4-SERIAL / 5-SERIAL CELL PACK (SECONDARY PROTECTION) S-8215A Series Pin Configurations SNT-8A Top view Figure 2 TMSOP-8 Top view Figure 3 4 Pin No. Symbol 1 VDD Positive power input pin 2 VC1 Positive voltage connection pin of battery 1 ...
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... P D ⎯ T opr ⎯ T stg 800 TMSOP-8 600 SNT-8A 400 200 0 100 50 0 Ambient Temperature (Ta) [°C] Seiko Instruments Inc. S-8215A Series ( ° C unless otherwise specified) Rating − 0 − − − 0 − ...
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... BATTERY PROTECTION IC FOR 4-SERIAL / 5-SERIAL CELL PACK (SECONDARY PROTECTION) S-8215A Series Electrical Characteristics Item Symbol DETECTION VOLTAGE Overcharge detection V CUn voltage Overcharge hysteresis V HCn voltage INPUT VOLTAGE Operating voltage between V DSOP VDD and VSS INPUT CURRENT ...
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... HCn ) COH ) COL ) COH ) COL ) COLL ) COL ) COLL ) COL Seiko Instruments Inc. S-8215A Series ) is the V1 voltage when the CO CU1 ) is the difference HC1 ) at that time. COL ) at that time. COH COL ) at that time. COL COLL ) at that time. COL ) at COH ) at that ) ...
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... BATTERY PROTECTION IC FOR 4-SERIAL / 5-SERIAL CELL PACK (SECONDARY PROTECTION) S-8215A Series 2. 3 Pch Open Drain Output Current Set SW1 and SW2 to OFF Active “H” (1) CO pin source current (I Set SW1 to ON after setting the CO pin source current (I that time. (2) CO pin leakage current “ ...
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... Figure 9 Test Circuit SW1 SW2 Seiko Instruments Inc. S-8215A Series S-8215A Series VDD CO V VC1 VSS V5 VC2 VC5 V4 VC3 VC4 Figure 6 Test Circuit 2 S-8215A Series VDD CO I VC1 A VC1 VSS VC5 VC2 ...
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... CUn ) or longer, CO pin output changes. This status is called and the status is retained for typ. 2 longer, S-8215A CUn HCn is continuously counted if the time the overcharge release CU ). Under the same conditions, if the time the ...
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... VDD pin voltage is decreased to the same voltage as that of the VC1 pin voltage. After that, the latch for retaining the test mode is reset and the S-8215A Series exits from test mode under the overcharge state. VDD pin voltage 4 ...
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... BATTERY PROTECTION IC FOR 4-SERIAL / 5-SERIAL CELL PACK (SECONDARY PROTECTION) S-8215A Series Timing Charts 1. Overcharge Detection Operation V HCn V CUn Battery voltage ( pin Active “H” CO pin Active “L” longer shorter shorter Figure 11 Seiko Instruments Inc. ...
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... BATTERY PROTECTION IC FOR 4-SERIAL / 5-SERIAL CELL PACK (SECONDARY PROTECTION) Rev.1.1 _00 2. Overcharge Timer Reset Operation V HCn V CUn Battery voltage ( pin Active “H” pin CO Active “L” longer shorter shorter CU Timer reset Figure 12 Seiko Instruments Inc. S-8215A Series or t shorter ...
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... BATTERY PROTECTION IC FOR 4-SERIAL / 5-SERIAL CELL PACK (SECONDARY PROTECTION) S-8215A Series Battery Protection IC Connection Examples 1. 5-serial cell R VDD R1 BAT1 R2 BAT2 R3 BAT3 R4 BAT4 R5 BAT5 No. Part C5 VDD Caution 1. The above constants are subject to change without prior notice has not been confirmed whether the operation is normal or not in circuits other than the above example of connection ...
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... Figure 14 Table 8 Constants for External Components Min. Typ. 0.5 0.01 0.1 VDD 50 100 so that the condition (R VDD so that the condition (R1 to R4) × (C1 to C4, C VDD Seiko Instruments Inc. S-8215A Series SC PROTECTOR FET D P Max 500 . VDD − × ( ≥ 5 × 10 VDD ...
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... Precaution • Do not connect batteries charged with more, the S-8215A series may become overcharge status after all pins are connected. CUn HCn • In some application circuits, even if an overcharged battery is not included, the order of connecting batteries may be restricted to prevent transient output of CO detection pulses when the batteries are connected. Perform thorough evaluation with the actual application circuit. • ...
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... V CU 4.100 4.050 4.000 3.950 3.900 16 4.0 3.0 2.0 1.0 0 ° [V] Seiko Instruments Inc. S-8215A Series + V vs −40 − [°C] vs. Ta OPED −40 − [°C] = − 0 ...
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... BATTERY PROTECTION IC FOR 4-SERIAL / 5-SERIAL CELL PACK (SECONDARY PROTECTION) S-8215A Series 3. Delay Time vs 6.0 5.0 4.0 3.0 2.0 −40 − [°C] 4. Output Current vs. V COL DD 10.0 7.5 5.0 2.5 0 ° [V] Seiko Instruments Inc. ...
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... Product code (Refer to Product name vs. Product code ) (5), (6) Blank (7) to (11) Lot number Product code (2) (3) ( (1) Blank (2) to (4) Product code (Refer to Product name vs. Product code ) 8 (5) Blank (6) to (8) Lot number 5 Product code (2) (3) ( Seiko Instruments Inc. S-8215A Series 19 ...
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... 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. ...