S-8254AANFT-TB-G Seiko Instruments, S-8254AANFT-TB-G Datasheet
S-8254AANFT-TB-G
Specifications of S-8254AANFT-TB-G
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S-8254AANFT-TB-G Summary of contents
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... Power-down mode 0.1 μA max. (+25°C) (10) Lead-free, Sn100%, halogen-free *1. Overcharge hysteresis voltage can be selected from a range steps. (Overcharge hysteresis voltage = Overcharge detection voltage − Overcharge release voltage) *2. Overdischarge hysteresis voltage can be selected from a range 100 mV steps. (Overdischarge hysteresis voltage = Overdischarge release voltage − ...
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... BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK S-8254A Series Block Diagram COP 1 MΩ VMP 900 kΩ DOP VINI CDT CCT VSS Remark 1. Diodes in the figure are parasitic diodes. 2. Numerical values are typical values. 2 DOP, COP VMD VMS Control Circuit Delay Circuit ...
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... BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK Rev.5.0 _01 Product Name Structure 1. Product Name S-8254A xx FT *1. Refer to the tape specifications at the end of this book. *2. Refer to “2. Product Name List”. 2. Package Package name Environmental code = G, S 16-Pin TSSOP Environmental code = Environmental code ...
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... S-8254ABFFT-TB-x 4.150 ± 0.025 V S-8254ABGFT-TB-x 4.180 ± 0.025 V S-8254ABHFT-TB-y 4.150 ± 0.025 V 4.215 ± 0.025 V S-8254ABIFT-TB-x Remark 1. Please contact our sales office for the products with the detection voltage value other than those specified above Please select products of environmental code = U for Sn 100%, halogen-free products. ...
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... Connection pin for battery 2’s positive voltage 15 VC1 Connection pin for battery 1’s positive voltage Input pin for positive power supply, 16 VDD Connection pin for battery 1’s positive voltage *1. The NC pin is electrically open. The NC pin can be connected to VDD or VSS. 16-Pin TSSOP Top view ...
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... Board size : (2) Board name : JEDEC STANDARD51-7 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. Figure 3 Power Dissipation of Package (When Mounted on Board) ...
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... BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK Rev.5.0 _01 Electrical Characteristics Item Symbol [ DETECTION VOLTAGE ] Overcharge detection voltage Overcharge release voltage Overdischarge detection voltage Overdischarge release voltage Overcurrent detection voltage 1 Overcurrent detection voltage 2 Overcurrent detection voltage 3 *1 Temperature coefficient Temperature coefficient DELAY TIME ] ...
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... 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. Since products are not screened at high and low temperature, the specification for this temperature range is guaranteed by design, not tested in production. 8 Table ...
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... Voltage “H”, SEL Input Voltage “L” (Test circuit 2) Confirm that the COP pin and DOP pin are low ( the CCT pin is open, the CDT pin is open, and 3.5 V (this status is referred the initial status). 2.1 Overcharge Detection Voltage (V The overcharge detection voltage (V × ...
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... CTL voltage has been gradually decreased. 2.7 SEL Input Voltage “H” (V Apply the initial status and confirm that the DOP pin is “H”. The SEL input voltage “L” the voltage of the SEL pin when the voltage at the DOP pin is “L” after the SEL voltage has SELL been gradually decreased. The SEL input voltage “ ...
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... Ether the 0 V battery charge starting charger voltage or the 0 V battery charge inhibition battery voltage is applied to each product according to the 0 V battery charging function. 4 Battery Charge Starting Battery Charger Voltage (V Function) The starting condition for a product in which 0 V battery charging is available. The COP pin voltage should be lower than max ...
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... BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK S-8254A Series 5.6 COP Pin Leakage Current (I The COP pin sink current (I after the initial status. After that, the current that flows through the COP pin when and V is the COP pin leakage current (I COP DD 5 ...
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... BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK Rev.5.0 _01 V C 0.1 μ 0.1 μ S-8254A 1 COP VDD 2 VMP VC1 3 DOP VC2 4 VINI VC3 5 CDT VC4 6 CCT CTL = 2 7 VSS SEL Figure 6 Test Circuit 3 S-8254A 1 COP VDD 2 VMP VC1 3 DOP VC2 4 VINI VC3 ...
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... When any one of the battery voltages becomes higher than V the COP pin becomes high impedance. The COP pin is pulled up to the EB resistor, and the charging FET is turned off to stop charging. This is called the overcharge status. The overcharge status is released when one of the following two conditions holds. ...
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... IOV1 which the DOP pin voltage becomes V COP pin becomes high impedance and is pulled up to the EB+ pin voltage to turn off the charging FET to stop charging, and the VMP pin is pulled up to the V of overcurrent detection level 2 (V ...
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... When the SEL pin is low, overdischarge detection of the V4 cell is prohibited and an overdischarge is not detected even if the V4 cell is shorted, therefore, the V4 cell can be used for 3-cell protection. The SEL pin takes precedence over the battery protection circuit. Use the SEL pin at high or low. ...
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... Load connection Overcharge connection delay time (t <1> *1 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 the charger. High-Z ) Overdischarge connection delay time (t CU <2> <1> <3> Figure 9 Seiko Instruments Inc ...
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... VMP pin voltage VINI pin voltage IOV2 V IOV1 V SS Load connection *1 Status *1. < 1 > : Normal status < 2 > : Overcurrent status Remark The charger is assumed to charge with a constant current. V the charger High-Z Overcurrent 1 detection Overcurrent 2 detection delay time (t ) delay time (t IOV1 <1> <2> <1> ...
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... BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK Rev.5.0 _01 Battery Protection IC Connection Example 1. 3-serial Cell Charging FET EB VMP COP R VINI C CDT C CCT EB− 2. 4-serial Cell Charging FET EB VMP COP R VINI C CDT C CCT EB− Discharging FET R DOP S-8254A 1 COP VDD 16 2 VMP VC1 ...
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... Enough evaluation of transient power supply variation and overcurrent protection function in the actual application is needed to determine the proper constants. Contact our sales office in case the constants should be set to other than 112 μF • Ω has not been confirmed whether the operation is normal or not in circuits other than the above example of connection ...
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... V PDN DD 0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0. Overcharge Detection / Release Voltage, Overdischarge Detection / Release Voltage, Overcurrent Detection Voltage, and Delay Times 2 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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... BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK S-8254A Series 2.5 V vs. V IOV1 DD 0.35 0.34 0.33 0.32 0.31 0.30 0.29 0.28 0.27 0.26 0. 2.7 V vs. V IOV2 DD 0.60 0.58 0.56 0.54 0.52 0.50 0.48 0.46 0.44 0.42 0. 2.9 V vs. V IOV3 DD −0.9 −1.0 −1.1 −1.2 − ...
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... BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK Rev.5.0 _01 2. CDT 10 1 0.1 0.01 0.001 0.01 2.15 t vs. C IOV1 CDT 1 0.1 0.01 0.001 0.0001 0.01 2.17 t vs. Ta IOV2 2.0 1.5 1.0 0.5 0 −40 −25 0 2. [μF] CDT 2. [μF] CDT 2 ...
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... BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK S-8254A Series 3. COP / DOP Pin 3.1 I vs. V COH COP 0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0. 3.3 I vs. V DOH DOP 0 −0.5 −1.0 −1.5 −2.0 −2.5 −3.0 −3.5 −4.0 −4.5 −5.0 0 1.8 24 3.2 I COL ...
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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. ...