S-8253A SII [Seiko Instruments Inc], S-8253A Datasheet
S-8253A
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S-8253A Summary of contents
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... Lithium polymer rechargeable battery packs Package Package Name 8-Pin TSSOP The S-8253A/B Series are protection ICs for 2-serial or 3-serial cell lithium-ion rechargeable batteries and include high-accuracy voltage detectors and delay circuits. These ICs are suitable for protecting lithium-ion battery packs from overcharge, overdischarge and overcurrent ...
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... BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK S-8253A/B Series Block Diagrams 1. S-8253A Series DOP COP VMP 200 nA CTL Remark All diodes shown in figure are parasitic diodes. 2 Oscillator, counter, controller + − + − 95 kΩ + − 900 kΩ CTLH CTLM Figure 1 Seiko Instruments Inc. ...
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... DOP COP 95 kΩ VMP 900 kΩ 200 nA CTL Remark All diodes shown in figure are parasitic diodes. Oscillator, counter, controller + − + − + − CTLH CTLM Figure 2 Seiko Instruments Inc. S-8253A/B Series VDD − − VC1 − − VC2 − − VSS 3 ...
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... T8T1 GZ Indicates package type and packing specification of IC T8T1 : 8-Pin TSSOP, Tape *2 Serial code Sequentially set from Product series name A : 2-cell B : 3-cell Table 1 S-8253A Series (For 2-Serial Cell) Overcharge Overdischarge release voltage detection voltage 4.050 ±0.050 V 2.40 ±0.080 V 4.050 ± ...
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... COP 2 VC1 7 VMP 3 VC2 6 CTL 4 VSS 5 Figure 3 Table 3 S-8253A Series Pin No. Symbol Connection pin for discharge control FET gate 1 DOP (CMOS output) Connection pin for charge control FET gate 2 COP (Nch open-drain output) Pin for voltage detection between VDD and VMP 3 ...
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... BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK S-8253A/B Series Absolute Maximum Ratings Item Input voltage between VDD and VSS Input pin voltage VMP pin input voltage DOP pin output voltage COP pin output voltage CTL input pin voltage Power dissipation Operating ambient temperature Storage temperature *1 ...
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... V battery charging unavailable 0INH * 3 VMD VMP * 1 VMS VMP Seiko Instruments Inc. S-8253A/B Series ( °C unless otherwise specified) Min. Typ. Max. Unit V V CUn CUn V CUn −0.025 +0.025 V V CLn CLn ...
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... COP pin sink current DOP pin source current DOP pin sink current *1. Voltage temperature coefficient 1 : Overcharge detection voltage *2. Voltage temperature coefficient 2 : Overcurrent detection voltage 1 *3. Because S-8253A Series are the protection ICs for 2-serial cell, there for them. 8 Table 6 (2/2) Symbol Conditions ...
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... BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK Rev.3.7 _00 2. Detection Delay Time （1） S-8253AAA, S-8253AAB, S-8253AAC, S-8253AAD, S-8253AAE, S-8253AAF, S-8253AAG, S-8253BAA, S-8253BAC,S-8253BAD, S-8253BAE, S-8253BAH Item Symbol DELAY TIME ( °C) Overcharge detection delay time t CU Overdischarge detection delay time t DL ...
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... Overcurrent Detection Voltage 1, Overcurrent Detection Voltage 2, Overcurrent Detection Voltage 3 (Test Condition 2, Test Circuit 1) Confirm that 3.5 V (S-8253A Series 3.5 V (S-8253B Series and the COP pin and DOP pin are low (this status is referred to as the initial status). ...
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... Overcharge Detection Delay Time, Overdischarge Detection Delay Time (Test Condition 3, Test Circuit 1) Confirm that 3.5 V (S-8253A Series 3.5 V (S-8253B Series and the COP pin and DOP pin are low (this status is referred to as the initial status Overcharge Detection Delay Time (t ...
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... CTL Pin Input Voltage “H” (Test Condition 7, Test Circuit 1) Confirm that 3.5 V (S-8253A Series 3.5 V (S-8253B Series and the COP pin and DOP pin are low (this status is referred to as the initial status CTL Pin Input Voltage “H” (V The CTL pin input voltage “ ...
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... The COP pin voltage should be higher than min. (S-8253B Series), and 0INH ), VC2 Pin Current (I ) VC2 ) is the current that flows through the VC1 pin when 3.5 V (S-8253A Series COH ) is the current that flows through the COP pin when (S-8253A COH ) COL ) is the current that flows through the COP pin when ...
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... BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK S-8253A/B Series S-8253A DOP 1 MΩ 2 COP V5 3 VMP 4 CTL V4 S-8253A 1 DOP S1 2 COP A 3 VMP 4 CTL S2 S-8253A 1 DOP S3 2 COP 3 VMP A 4 CTL S4 14 VDD 8 V1 VC1 VC2 6 1 µF VSS 5 V4 ...
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... V2 V6 VC2 6 1 µF VSS 5 S6 Figure 8 Test Circuit 4 VDD 8 V1 VC1 VC2 6 1 µF VSS 5 Figure 9 Test Circuit 5 Seiko Instruments Inc. S-8253A/B Series S7 S-8253B DOP VDD COP VC1 7 3 VMP VC2 6 4 CTL VSS 5 S8 S-8253B ...
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... When discharging has stopped due to the overdischarge status, the VMP pin is pulled down to the V resistor. When the VMP pin voltage is lower than Typ. 0.8 V, the S-8253A/B Series enters the power-down status. In the power-down status, almost all the circuits of the S-8253A/B Series stop and the current consumption is I The conditions of each output pin are as follows ...
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... Caution The impedance that enables automatic restoration varies depending on the battery voltage and set value of overcurrent detection voltage Battery Charge Function Regarding the charging of a self-discharged battery (0 V battery), the S-8253A/B Series has two functions from which one should be selected. ( battery charging is allowed (0 V battery charging is available.) When the charger voltage is higher than V ( battery charging is prohibited (0 V battery charging is unavailable ...
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... The S-8253A/B Series has a control pin for charge / discharge control and shortening the test time. The levels, “L”, “H”, and “M”, of the voltage input to the CTL pin determine the status of the S-8253A/B Series: normal operation, charge / discharge inhibition, or test time shortening. The CTL pin takes precedence over the battery protection circuit. During normal use, short the CTL pin and VSS pin ...
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... Remark The charger is assumed to charge with a constant current High-Z Overdischarge detection Overcharge detection delay time ( < 1 > < 2 > Figure 11 Seiko Instruments Inc. S-8253A/B Series High-Z delay time ( < 1 > < 3 > indicates the open voltage of the charger. EB+ < 1 > 19 ...
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... BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK S-8253A/B Series 2. Overcurrent Detection V CUn V CLn Battery voltage V DUn V DLn ( DOP pin voltage EB+ COP pin voltage IOV1 V VMP IOV2 pin voltage V IOV3 V SS Load connection *1 Mode *1. < 1 > : Normal mode < ...
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... BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK Rev.3.7 _00 Battery Protection IC Connection Example 1. S-8253A Series Charging FET EB+ R COP R VMP CTL EB− 2. S-8253B Series Charging FET EB+ R COP R VMP CTL EB− Discharging FET R DOP S-8253A 1 DOP VDD 2 COP VC1 3 VMP VC2 4 CTL ...
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... BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK S-8253A/B Series No *1. Please set up a filter constant × VC1 VC1 Caution 1. The above constants may be changed without 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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... CTL CTLH starts charging a parasitic capacitor in the device. In this case, if the rush current, which makes the S-8253A/B Series to detect the overcurrent detection voltage 3 (V shortened. So that the battery pack goes in the overcurrent status in several 10 µs. However, the battery pack goes in the normal status by connecting the device to the charger ...
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... BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK S-8253A/B Series • The application conditions for the input voltage, output voltage, and load current should not exceed the package power dissipation. • Batteries can be connected in any order, however, there may be cases when discharging cannot be performed when a battery is connected ...
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... V [V] DD (S-8253AAA [°C] (S-8253AAA [V] DD (S-8253AAA [°C] Seiko Instruments Inc. S-8253A/B Series (S-8253BAA [V] DD (S-8253BAA −40 − [° ...
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... BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK S-8253A/B Series 2. Overcharge Detection / Release Voltage, Overdischarge Detection / Release Voltage, Overcurrent Detection Voltage, and Delay Times (S-8253AAA, S-8253BAA vs 4.375 4.370 4.365 4.360 4.355 4.350 4.345 4.340 4.335 4.330 4.325 −40 − ...
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... [ [ [ [V] DD Seiko Instruments Inc. S-8253A/B Series vs. Ta IOV2 0.60 0.58 0.56 0.54 0.52 0.50 0.48 0.46 0.44 0.42 0. −40 −25 Ta [°C] vs. Ta IOV3 1.5 1.4 1.3 1.2 1.1 1.0 0 −40 −25 Ta [°C] vs. Ta IOV1 10.8 10.4 10 ...
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... BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK S-8253A/B Series vs. V IOV3 DD 0.38 0.36 0.34 0.32 0.30 0.28 0.26 0.24 0. COP / DOP Pin (S-8253AAA, S-8253BAA vs. V COH COP 0.10 0.08 0.06 0.04 0. vs. V DOH DOP 0 −0.5 −1.0 −1.5 −2.0 −2 [ ...
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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 ...