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S-8254AAVFT-TB-U Datasheet(PDF) 11 Page - Seiko Instruments Inc |
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S-8254AAVFT-TB-U Datasheet(HTML) 11 Page - Seiko Instruments Inc |
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11 / 29 page  BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK Rev.5.2_00 S-8254A Series 11 4. 0 V Battery Charge Starting Charger Voltage (Product with 0 V Battery Charge Function), 0 V Battery Charge Inhibition Battery Voltage (Product with 0 V Battery Charge Inhibition Function) (Test circuit 4) Either 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 charge function. 4. 1 0 V Battery Charge Starting Charger Voltage (V0CHA) (Product with 0 V Battery Charge Function) The starting condition is V1 = V2 = V3 = V4 = 0 V for a product in which 0 V battery charging is available. The COP pin voltage should be lower than V0CHA max. − 1 V when the VMP pin voltage VVMP = V0CHA max. 4. 2 0 V Battery Charge Inhibition Battery Voltage (V0INH) (Product with 0 V Battery Charge Inhibition Function) The starting condition is V1 = V2 = V3 = V4 = V0INH for a product in which 0 V battery charging is inhibited. The COP pin voltage should be higher than VVMP − 1 V when the VMP pin voltage VVMP = 24 V. 5. Resistance between VMP and VDD, Resistance between VMP and VSS, VC1 Pin Current, VC2 Pin Current, VC3 Pin Current, VC4 Pin Current, CTL pin Current “H”, CTL Pin Current “L”, SEL Pin Current “H”, SEL Pin Current “L”, COP Pin Leakage Current, COP Pin Sink Current, DOP Pin Source Current, DOP Pin Sink Current (Test circuit 5) VVMP = VSEL = VDD, VINI = VCTL = VSS, V1 = V2 = V3 = V4 = 3.5 V, and other pins left “open” (this status is referred to as the initial status). 5. 1 Resistance between VMP and VDD (RVMD) The resistance between VMP and VDD (RVMD) is obtained from RVMD = VDD / IVMD using the current value of the VMP pin (IVMD) when VVMP is VSS after the initial status. 5. 2 Resistance between VMP and VSS (RVMS) The resistance between VMP and VSS (RVMS) is obtained from RVMS = VDD / IVMS using the current value of the VMP pin (IVMS) when V1 = V2 = V3 = V4 = 1.8 V after the initial status. 5. 3 VC1 Pin Current (IVC1), VC2 Pin Current (IVC2), VC3 Pin Current (IVC3), VC4 Pin Current (IVC4) At the initial status, the current that flows through the VC1 pin is the VC1 pin current (IVC1), the current that flows through the VC2 pin is the VC2 pin current (IVC2), the current that flows through the VC3 pin is the VC3 pin current (IVC3), and the current that flows through the VC4 pin is the VC4 pin current (IVC4). 5. 4 CTL pin Current “H” (ICTLH), CTL Pin Current “L” (ICTLL) In the initial status, the current that flows through the CTL pin is the CTL pin current “L” (ICTLL), after that, when VCTL = VDD, the current that flows through the CTL pin is the CTL pin current “H” (ICTLH). 5. 5 SEL Pin Current “H” (ISELH), SEL Pin Current “L” (ISELL) In the initial status, the current that flows through the SEL pin is the SEL pin current “H” (ISELH), after that, when VSEL = VSS, the current that flows through the SEL pin is the SEL pin current “L” (ISELL). |
Similar Part No. - S-8254AAVFT-TB-U |
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Similar Description - S-8254AAVFT-TB-U |
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