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NTE1531 Datasheet(PDF) 2 Page - NTE Electronics |
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NTE1531 Datasheet(HTML) 2 Page - NTE Electronics |
2 / 3 page Operational Characteristics (Cont’d): (TA = +25°C, unless otherwise specified) Parameter Symbol Conditions Min Typ Max Unit VDD Voltage VDD(5) VCLK = +B2 = 16V, IDD = 18mA, Iref = 10mA, Vref = 8V, TA = –20° to +70°C, +B1 opened. Vref–0.3 – 10 V Radio Back–Up Signal Voltage VBUC +B1 = +B2 = 9.15 to 16V, Vref = 8V 0.78VDD – VDD V Clock Back–Up Signal Voltage VINHI +B1 = +B2 = 9.15 to 16V, Vref = 8V 0.78VDD – VDD V Radio Back–Up Signal Rise Voltage VTH BUC UP +B1 = +B2, Vref = 8V, Iref = 10mA 8.9 – 9.3 V Radio Back–Up Signal Hysteresis VTH BUC DN +B1 = +B2, Vref = 8V, Iref = 10mA 50 – 200 mV BUC Delay Time at +B Step Input tD +B1 = +B2 = 13.2V, C = 22 µF, R = 22k ohm 85 – 400 ms Current Dissipation ICC(1) +B1 = +B2 = 13.2V, IDD = 30mA, Iref = 10mA – 70 – mA ICC(2) +B2 = 13.2V, no load, +B1 opened. – 0.63 1.4 mA Vref Thermal Drift |∆Vref| TA = –10 to +60°C, Vref = 8V (25°C) –60 0 60 mV Logic Table: B1 B2 CLK VDD Vref BUC INHI Condition L H L 5V 0V L L When back–up of time H H L 9V 8V H H radio on L H H 9V 8V L H read out time when radio off H H H 9V 8V H H read out time when radio on NOTE: This device is for REPLACEMENT ONLY! No application notes are available. Block Diagram Control LSI Control Signal Generator Counter IC Control Signal Generator Logic Circuit Comparator VDD Generator for Back–Up Time Delay VDD Generator Vref Generator Reference Voltage Generator Comparator 14 13 12 14 2 3 10 N.C. Vref VDD C2 V1 Det C3 C1 GND B2 CLK B1 INHI BUC 98 511 6 7 |
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