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NCV8881 Datasheet(PDF) 9 Page - ON Semiconductor |
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NCV8881 Datasheet(HTML) 9 Page - ON Semiconductor |
9 / 33 page NCV8881 http://onsemi.com 9 WATCHDOG ELECTRICAL CHARACTERISTICS (VVIN = 13.2 V, VEN = 2 V, CIN = 4.7 mF unless specified otherwise) Min/Max values are valid for the temperature range −40°C vTJ v 150°C unless noted otherwise, and are guaranteed by test, design or statistical correlation. Parameter Symbol Conditions Min Typ Max Unit WATCHDOG INPUT (WDI pin) Input High Voltage 2.0 V Input Low Voltage 0.8 V Input Current VWDI = 5.0 V 5 10 mA Threshold Frequency fWDTH to prevent RESB low RDLY = 10 kW RDLY = 20 kW RDLY = 30 kW 20.85 10.42 6.95 Hz RDLY INPUT Output Voltage RDLY = 10 kW 0.917 0.99 1.067 V Output Voltage RDLY = 30 kW 0.940 1.02 1.092 V RESB OUTPUT Output Voltage Low VRBLO VFB < VFBMONL, sinking 0.5 mA 0.03 0.1 V Output leakage VFB > VFBMONH 0.4 5 mA POR Delay Time tPOR VFB > VFBMONH to RESB high; RDLY = 10 kW RDLY = 20 kW (Note 8) RDLY = 30 kW (Note 8) RDLY = open; ROSC = 36 kW (Note 8) RDLY = open; ROSC = open 4.0 8 12 5 10 15 6.0 12 18 50 110 ms Boot Delay Time tBD RESB high to low; RDLY = 10 kW RDLY = 20 kW (Note 8) RDLY = 30 kW (Note 8) RDLY = open; ROSC = 36 kW (Note 8) RDLY = open; ROSC = open 40 80 120 50 100 150 60 120 180 500 1100 ms Watchdog Delay Time tWD WDI low to RESB low; RDLY = 10 kW RDLY = 20 kW (Note 8) RDLY = 30 kW (Note 8) RDLY = open; ROSC = 36 kW (Note 8) RDLY = open; ROSC = open 48 96 144 60 120 180 72 144 216 550 1300 ms 8. Guaranteed by design. |
Similar Part No. - NCV8881_11 |
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Similar Description - NCV8881_11 |
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