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S-8232NPFT-T2-G Datasheet(PDF) 10 Page - Seiko Instruments Inc |
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S-8232NPFT-T2-G Datasheet(HTML) 10 Page - Seiko Instruments Inc |
10 / 27 page BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK S-8232 Series Rev.5.4_00 Seiko Instruments Inc. 10 Test Circuits (1) Test Condition 1, Test Circuit 1 Set S1 = OFF, V1 = V2 = 3.6 V, and V3 = 0 V under normal condition. Increase V1 from 3.6 V gradually. The V1 voltage when CO = “L” is overcharge detection voltage 1 (VCU1). Decrease V1 gradually. The V1 voltage when CO = “H” is overcharge release voltage 1 (VCD1). Further decrease V1. The V1 voltage when DO = “L” is overdischarge voltage 1 (VDD1). Increase V1 gradually. The V1 voltage when DO = “H” is overdischarge release voltage 1 (VDU1). Set S1 = ON, and V1 = V2 = 3.6 V and V3 = 0 V under normal condition. Increase V1 from 3.6 V gradually. The V1 voltage when CO = “L” is auxiliary overcharge detection voltage 1 (VCUaux1). (2) Test Condition 2, Test Circuit 1 Set S1 = OFF, V1 = V2 = 3.6 V, and V3 = 0 V under normal condition. Increase V2 from 3.6 V gradually. The V2 voltage when CO = “L” is overcharge detection voltage 2 (VCU2). Decrease V2 gradually. The V2 voltage when CO = “H” is overcharge release voltage 2 (VCD2). Further decrease V2. The V2 voltage when DO = “L” is overdischarge voltage 2 (VDD2). Increase V2 gradually. The V2 voltage when DO = “H” is overdischarge release voltage 2 (VDU2). Set S1 = ON, and V1 = V2 = 3.6 V and V3 = 0 V under normal condition. Increase V2 from 3.6 V gradually. The V2 voltage when CO = “L” is auxiliary overcharge detection voltage 2 (VCUaux2). (3) Test Condition 3, Test Circuit 1 Set S1 = OFF, V1 = V2 = 3.6 V, and V3 = 0 V under normal condition. Increase V3 from 0 V gradually. The V3 voltage when DO = “L” is overcurrent detection voltage 1 (VIOV1). Set S1 = ON, V1 = V2 = 3.6 V, V3 = 0 under normal condition. Increase V3 from 0 V gradually. (The voltage change rate < 1.0 V / ms) V3 − (V1 + V2) voltage when DO = “L” is overcurrent detection voltage 2 (VIOV2). (4) Test Condition 4, Test Circuit 2 Set S1 = ON, V1 = V2 = 3.6 V, and V3 = 0 V under normal condition and measure current consumption. Current consumption I1 is the normal condition current consumption (IOPE). Set S1 = OFF, V1 = V2 = 1.5 V under overdischarge condition and measure current consumption. Current consumption I1 is the power-down current consumption (IPDN). (5) Test Condition 5, Test Circuit 2 Set S1 = ON, V1 = V2 = V3 = 1.5 V, and V3 = 2.5 V under overdischarge condition. (V1 + V2 − V3) / I2 is the internal resistance between VCC and VM (RVCM). Set S1 = ON, V1 = V2 = 3.6 V, and V3 = 1.1 V under overcurrent condition. V3 / I2 is the internal resistance between VSS and VM (RVSM). (6) Test Condition 6, Test Circuit 3 Set S1 = ON, S2 = OFF, V1 = V2 = 3.6 V, and V3 = 0 V under normal condition. Increase V4 from 0 V gradually. The V4 voltage when I1 = 10 µA is DO voltage “H” (VDO(H)). Set S1 = OFF, S2 = ON, V1 = V2 = 3.6 V, and V3 = 0.5 V under overcurrent condition. Increase V5 from 0 V gradually. The V5 voltage when I2 = 10 µA is the DO voltage “L” (VDO(L)). |
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