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S-8240BAE-I6T1U Datasheet(PDF) 9 Page - Seiko Instruments Inc |
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S-8240BAE-I6T1U Datasheet(HTML) 9 Page - Seiko Instruments Inc |
9 / 37 page BATTERY PROTECTION IC FOR 1-CELL PACK Rev.1.0_00 S-8240B Series 9 Test Circuits Caution Unless otherwise specified, the output voltage levels "H" and "L" at CO pin (VCO) and DO pin (VDO) are judged by the threshold voltage (1.0 V) of the N-channel FET. Judge the CO pin level with respect to VVM and the DO pin level with respect to VSS. 1. Overcharge detection voltage, overcharge release voltage (Test circuit 1) Overcharge detection voltage (VCU) is defined as the voltage V1 at which VCO goes from "H" to "L" when the voltage V1 is gradually increased from the starting condition of V1 = 3.4 V. Overcharge release voltage (VCL) is defined as the voltage V1 at which VCO goes from "L" to "H" when the voltage V1 is then gradually decreased. Overcharge hysteresis voltage (VHC) is defined as the difference between VCU and VCL. 2. Overdischarge detection voltage, overdischarge release voltage (Test circuit 2) Overdischarge detection voltage (VDL) is defined as the voltage V1 at which VDO goes from "H" to "L" when the voltage V1 is gradually decreased from the starting conditions of V1 = 3.4 V, V2 = 0 V. Overdischarge release voltage (VDU) is defined as the voltage V1 at which VDO goes from "L" to "H" when setting V2 = 0.01 V and when the voltage V1 is then gradually increased. Overdischarge hysteresis voltage (VHD) is defined as the difference between VDU and VDL. 3. Discharge overcurrent detection voltage, discharge overcurrent release voltage (Test circuit 2) 3. 1 Release voltage of discharge overcurrent status "VDIOV" Discharge overcurrent detection voltage (VDIOV) is defined as the voltage V2 whose delay time for changing VDO from "H" to "L" is discharge overcurrent detection delay time (tDIOV) when the voltage V2 is increased from the starting conditions of V1 = 3.4 V, V2 = 0 V. VDO goes from "L" to "H" when setting V2 = 3.4 V and when the voltage V2 is then gradually decreased to VDIOV typ. or lower. 3. 2 Release voltage of discharge overcurrent status "VRIOV" VDIOV is defined as the voltage V2 whose delay time for changing VDO from "H" to "L" is tDIOV when the voltage V2 is increased from the starting conditions of V1 = 3.4 V, V2 = 0 V. Discharge overcurrent release voltage (VRIOV) is defined as the voltage V2 at which VDO goes from "L" to "H" when setting V2 = 3.4 V and when the voltage V2 is then gradually decreased. 4. Load short-circuiting detection voltage (Test circuit 2) Load short-circuiting detection voltage (VSHORT) is defined as the voltage V2 whose delay time for changing VDO from "H" to "L" is load short-circuiting detection delay time (tSHORT) when the voltage V2 is increased from the starting conditions of V1 = 3.4 V, V2 = 0 V. 5. Charge overcurrent detection voltage (Test circuit 2) Charge overcurrent detection voltage (VCIOV) is defined as the voltage V2 whose delay time for changing VCO from "H" to "L" is charge overcurrent detection delay time (tCIOV) when the voltage V2 is decreased from the starting conditions of V1 = 3.4 V, V2 = 0 V. 6. Current consumption during operation (Test circuit 3) The current consumption during operation (IOPE) is the current that flows through the VDD pin (IDD) under the set conditions of V1 = 3.4 V and V2 = 0 V. |
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