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S-8254AAEFT-TB Datasheet(PDF) 7 Page - Seiko Instruments Inc |
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S-8254AAEFT-TB Datasheet(HTML) 7 Page - Seiko Instruments Inc |
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7 / 29 page  BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK Rev.5.1_00 S-8254A Series Seiko Instruments Inc. 7 Electrical Characteristics Table 4 (1 / 2) (Ta = 25°C unless otherwise specified) Item Symbol Conditions Min. Typ. Max. Unit Test circuit [ DETECTION VOLTAGE ] Overcharge detection voltage n (n = 1, 2, 3, 4) VCUn 3.9 V to 4.4 V, Adjustable VCUn − 0.025 VCUn VCUn + 0.025 V 2 Overcharge release voltage n (n = 1, 2, 3, 4) VCLn 3.8 V to 4.4 V, Adjustable VCL ≠ VCU VCLn − 0.05 VCLn VCLn + 0.05 V 2 VCL = VCU VCLn − 0.025 VCLn VCLn + 0.025 V 2 Overdischarge detection voltage n (n = 1, 2, 3, 4) VDLn 2.0 V to 3.0 V, Adjustable VDLn − 0.08 VDLn VDLn + 0.08 V 2 Overdischarge release voltage n (n = 1, 2, 3, 4) VDUn 2.0 V to 3.4 V, Adjustable VDL ≠ VDU VDUn − 0.10 VDUn VDUn + 0.10 V 2 VDL = VDU VDUn − 0.08 VDUn VDUn + 0.08 V 2 Overcurrent detection voltage 1 VIOV1 0.05 V to 0.3 V, Adjustable VIOV1 − 0.025 VIOV1 VIOV1 + 0.025 V 2 Overcurrent detection voltage 2 VIOV2 ⎯ 0.4 0.5 0.6 V 2 Overcurrent detection voltage 3 VIOV3 ⎯ VVC1 − 1.5 VVC1 − 1.2 VVC1 − 0.9 V 2 Temperature coefficient 1 *1 TCOE1 Ta = 0°C to 50°C *3 − 1.0 0 1.0 mV / °C 2 Temperature coefficient 2 *2 TCOE2 Ta = 0°C to 50°C *3 − 0.5 0 0.5 mV / °C 2 [ DELAY TIME ] Overcharge detection delay time tCU CCT pin capacitance = 0.1 μF 0.5 1.0 1.5 s 3 Overdischarge detection delay time tDL CDT pin capacitance = 0.1 μF 50 100 150 ms 3 Overcurrent detection delay time 1 tIOV1 CDT pin capacitance = 0.1 μF 5 10 15 ms 3 Overcurrent detection delay time 2 tIOV2 ⎯ 0.4 1 1.6 ms 3 Overcurrent detection delay time 3 tIOV3 FET gate capacitance = 2000 pF 100 300 600 μs 3 [ 0 V BATTERY CHARGE FUNCTION ] 0 V battery charge starting charger voltage V0CHA 0 V battery charging available ⎯ 0.8 1.5 V 4 0 V battery charge inhibition battery voltage V0INH 0 V battery charging unavailable 0.4 0.7 1.1 V 4 [ INTERNAL RESISTANCE ] Resistance between VMP and VDD RVMD ⎯ 0.5 1 1.5 M Ω 5 Resistance between VMP and VSS RVMS ⎯ 450 900 1800 k Ω 5 |
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Similar Description - S-8254AAEFT-TB |
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