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S-8424AACFT-TB-U Datasheet(PDF) 11 Page - Seiko Instruments Inc |
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S-8424AACFT-TB-U Datasheet(HTML) 11 Page - Seiko Instruments Inc |
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11 / 46 page  BATTERY BACKUP SWITCHING IC Rev.3.0_01 S-8424A Series 11 5. S-8424AAExx Table 8 Electrical Characteristics (Unless otherwise specified: Ta = 25°C) Parameter Symbol Conditions Min. Typ. Max. Unit Test Circuit Output voltage 1 VRO VIN = 6 V, IRO = 30 mA 3.087 3.150 3.213 V 1 Dropout voltage 1 Vdrop1 VIN = 6 V, IRO = 30 mA ⎯ 356 474 mV Load stability 1 ΔVRO1 VIN = 6 V, IRO = 0.1 to 30 mA ⎯ 50 100 mV Input stability 1 ΔVRO2 VIN = 6 to 16 V, IRO = 30 mA ⎯ 5 20 mV Output voltage temperature coefficient 1 RO RO V Ta V • Δ Δ Ta = −40°C to +85°C ⎯ ±100 ⎯ ppm/ °C Output voltage 2 VOUT VIN = 6 V, IOUT = 50 mA 3.087 3.150 3.213 V Dropout voltage 2 Vdrop2 VIN = 6 V, IOUT = 50 mA ⎯ 401 540 mV Load stability 2 ΔVOUT1 VIN = 6 V, IOUT = 0.1 to 60 mA ⎯ 50 100 mV Input stability 2 ΔVOUT2 VIN = 6 to 16 V, IOUT = 50 mA ⎯ 5 20 mV Output voltage temperature coefficient 2 OUT OUT V Ta V • Δ Δ Ta = −40°C to +85°C ⎯ ±100 ⎯ ppm/ °C Primary power input voltage VIN ⎯ ⎯ ⎯ 16 V CS detection voltage −VDET1 VIN voltage detection 4.116 4.200 4.284 V 2 CS release voltage +VDET1 ⎯ 4.233 4.337 4.441 V RESET detection voltage −VDET2 VOUT voltage detection 2.254 2.300 2.346 V RESET release voltage +VDET2 ⎯ 2.362 2.420 2.478 V PREEND detection voltage −VDET3 VBAT voltage detection 2.450 2.500 2.550 V PREEND release voltage +VDET3 ⎯ 2.576 2.640 2.703 V Operating voltage Vopr VIN or VBAT 1.7 ⎯ 16 V Detection voltage temperature coefficient 1 DET 1 DET V Ta V − • Δ − Δ Ta = −40°C to +85°C ⎯ ±100 ⎯ ppm/ °C 2 DET 2 DET V Ta V − • Δ − Δ Ta = −40°C to +85°C ⎯ ±100 ⎯ ppm/ °C 3 DET 3 DET V Ta V − • Δ − Δ Ta = −40°C to +85°C ⎯ ±100 ⎯ ppm/ °C Sink current ISINK VDS = 0.5 V, VIN = VBAT = 2.0 V RESET 1.50 2.30 ⎯ mA 3 PREEND 1.50 2.30 ⎯ mA CS 1.50 2.30 ⎯ mA Leakage current ILEAK VDS = 16 V, VIN = 16 V ⎯ ⎯ 0.1 μA Switch voltage VSW1 VBAT = 2.8 V, VIN voltage detection +VDET1 × 0.75 +VDET1 × 0.77 +VDET1 × 0.79 V 4 CS output inhibit voltage VSW2 VBAT = 3.0 V, VOUT voltage detection VOUT × 0.93 VOUT × 0.95 VOUT × 0.97 V 5 VBAT switch leakage current ILEAK VIN = 6 V, VBAT = 0 V ⎯ ⎯ 0.1 μA 6 VBAT switch resistance RSW VIN = Open, VBAT = 3.0 V, IOUT = 10 to 500 μA ⎯ 30 60 Ω 7 Switch voltage temperature coefficient 1 SW 1 SW V Ta ∆ V ∆ • Ta = −40°C to +85°C ⎯ ±100 ⎯ ppm/ °C 4 CS output inhibit voltage temperature coefficient 2 SW 2 SW V Ta ∆ V ∆ • Ta = −40°C to +85°C ⎯ ±100 ⎯ ppm/ °C 5 Current consumption ISS1 VIN = 6 V, VBAT = 3.0 V, Unload ⎯ 7 15 μA 8 IBAT1 ⎯ 0.26 0.50 μA IBAT2 VIN = Open, VBAT = 3.0 V, Unload Ta = 25°C ⎯ 1.0 2.1 μA Ta = 85°C ⎯ ⎯ 3.5 μA Backup power supply input voltage VBAT ⎯ 1.7 ⎯ 4.0 V 7 Remark The number in the Test Circuit column corresponds to the circuit number in the “Test Circuit” section. |
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