S-8242B Datasheet, PDF (8/30 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK

BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK
S-8242B Series
Rev.1.4_00
5. Operating Current Consumption, VC Pin Current, Power-down Current Consumption
(Test Condition 5, Test Circuit 3)
The operating current consumption (I_OPE) is the current I_SS that flows through the VSS pin and the VC pin current (I_VC)
is the current I_C that flows through the VC pin under the set conditions of V1 = V2 = 3.5 V and S1:OFF, S2:ON
(normal status).
The power-down current consumption (I_PDN) is the current I_SS that flows through the VSS pin under the set conditions
of V1 = V2 = 1.5 V and S1:ON, S2:OFF (overdischarge status).
6. Resistance between VM and VDD, Resistance between VM and VSS
(Test Condition 6, Test Circuit 3)
The resistance between VM and VDD (R_VMD) is the resistance between VM and VDD pins under the set conditions of
V1 = V2 = 1.5 V and S1:OFF, S2:ON.
The resistance between VM and VSS (R_VMS) is the resistance between VM and VSS pins under the set conditions of
V1 = V2 = 3.5 V and S1:ON, S2:OFF.
7. CO Pin H Resistance, CO Pin L Resistance
(Test Condition 7, Test Circuit 4)
The CO pin H resistance (R_COH) is the resistance at the CO pin under the set conditions of V1 = V2 = 3.5 V, V4 = 6.5 V.
The CO pin L resistance (R_COL) is the resistance at the CO pin under the set conditions of V1 = V2 = 4.5 V, V4 = 0.5 V.
8. DO Pin H Resistance, DO Pin L Resistance
(Test Condition 8, Test Circuit 4)
The DO pin H resistance (R_DOH) is the resistance at the DO pin under the set conditions of V1 = V2 = 3.5 V, V5 = 6.5 V.
The DO pin L resistance (R_DOL) is the resistance at the DO pin under the set conditions of V1 = V2 = 1.8 V, V5 = 0.5 V.
9. Overcharge Detection Delay Time, Overdischarge Detection Delay Time
(Test Condition 9, Test Circuit 2)
The overcharge detection delay time (t_CU) is the time needed for V_CO to change from “H” to “L” just after the voltage
V1 momentarily increases within 10 µs from overcharge detection voltage 1 (V_CU1) − 0.2 V to overcharge detection
voltage 1 (V_CU1) + 0.2 V under the set conditions of V1 = V2 = 3.5 V, V3 = 0 V.
The overdischarge detection delay time (t_DL) is the time needed for V_DO to change from “H” to “L” just after the voltage
V1 momentarily decreases within 10 µs from overdischarge detection voltage 1 (V_DL1) + 0.2 V to overdischarge
detection voltage 1 (V_DL1) − 0.2 V under the set condition of V1 = V2 = 3.5 V, V3 = 0 V.
10. Overcurrent Detection Delay Time 1, Overcurrent Detection Delay Time 2
(Test Condition 10, Test Circuit 2)
Overcurrent detection delay time 1 (t_IOV1) is the time needed for V_DO to go to “L” after the voltage V3 momentarily
increases within 10 µs from 0 V to V_IOV1 + 0.1 V under the set conditions of V1 = V2 = 3.5 V, V3 = 0 V.
Overcurrent detection delay time 2 (t_IOV2) is the time needed for V_DO to go to “L” after the voltage V3 momentarily
increases within 10 µs from 0 V to 2.0 V under the set conditions of V1 = V2 = 3.5 V, V3 = 0 V.
11. 0 V Charge Starting Charger Voltage (Products in Which 0 V Charge Is Available)
(Test Condition 11, Test Circuit 2)
The 0 V charge starting charger voltage (V_0CHA) is defined as the voltage between the VDD pin and VM pin at which
V_CO goes to “H” (V_VM + 0.1 V or higher) when the voltage V3 is gradually decreased from the starting condition of V1
= V2 = V3 = 0 V.
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Seiko Instruments Inc.