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S-8424AAEFT-TB-x Datasheet(PDF) 7 Page - Seiko Instruments Inc |
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S-8424AAEFT-TB-x Datasheet(HTML) 7 Page - Seiko Instruments Inc |
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7 / 46 page  BATTERY BACKUP SWITCHING IC Rev.3.0_01 S-8424A Series 7 Electrical Characteristics 1. S-8424AAAxx Table 4 Electrical Characteristics (Unless otherwise specified: Ta = 25°C) Parameter Symbol Conditions Min. Typ. Max. Unit Test Circuit Output voltage 1 VRO VIN = 7.2 V, IRO = 3 mA 2.940 3.000 3.060 V 1 Dropout voltage 1 Vdrop1 VIN = 7.2 V, IRO = 3 mA ⎯ 41 59 mV Load stability 1 ΔVRO1 VIN = 7.2 V, IRO = 0.1 to 10 mA ⎯ 50 100 mV Input stability 1 ΔVRO2 VIN = 4 to 16 V, IRO = 3 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 = 7.2 V, IOUT = 23 mA 2.940 3.000 3.060 V Dropout voltage 2 Vdrop2 VIN = 7.2 V, IOUT = 23 mA ⎯ 187 252 mV Load stability 2 ΔVOUT1 VIN = 7.2 V, IOUT = 0.1 to 60 mA ⎯ 50 100 mV Input stability 2 ΔVOUT2 VIN = 4 to 16 V, IOUT = 23 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 3.234 3.300 3.366 V 2 CS release voltage +VDET1 ⎯ 3.319 3.401 3.482 V RESET detection voltage −VDET2 VOUT voltage detection 2.156 2.200 2.244 V RESET release voltage +VDET2 ⎯ 2.256 2.312 2.367 V PREEND detection voltage −VDET3 VBAT voltage detection 2.548 2.600 2.652 V PREEND release voltage +VDET3 ⎯ 2.682 2.748 2.814 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 × 0.83 +VDET1 × 0.85 +VDET1 × 0.87 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 = 3.6 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 = 3.6 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. |
Similar Part No. - S-8424AAEFT-TB-x |
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