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MC7818BT Datasheet(PDF) 11 Page - ON Semiconductor |
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MC7818BT Datasheet(HTML) 11 Page - ON Semiconductor |
11 / 34 page MC7800, MC7800A, MC7800AE, NCV7800 http://onsemi.com 11 ELECTRICAL CHARACTERISTICS (Vin = 19 V, IO = 500 mA, TJ = Tlow to 125°C (Note 17), unless otherwise noted) MC7812B/NCV7812B MC7812C Characteristic Symbol Min Typ Max Min Typ Max Unit Output Voltage (TJ = 25°C) VO 11.5 12 12.5 11.5 12 12.5 Vdc Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) VO Vdc 14.5 Vdc ≤ Vin ≤ 27 Vdc − − − 11.4 12 12.6 15.5 Vdc ≤ Vin ≤ 27 Vdc 11.4 12 12.6 − − − Line Regulation, TJ = 25°C (Note 18) Regline mV 14.5 Vdc ≤ Vin ≤ 30 Vdc − 7.5 240 − 3.8 24 16 Vdc ≤ Vin ≤ 22 Vdc − 2.2 120 − 0.3 24 14.8 Vdc ≤ Vin ≤ 27 Vdc, IO = 1.0 A − − − − − 48 Load Regulation, TJ = 25°C (Note 18) Regload − 1.6 240 − 8.1 60 mV 5.0 mA ≤ IO ≤ 1.5 A Quiescent Current IB − 3.4 8.0 − 3.4 6.5 mA Quiescent Current Change DIB mA 14.5 Vdc ≤ Vin ≤ 30 Vdc, IO = 1.0 A, TJ = 25°C − − − − − 0.7 15 Vdc ≤ Vin ≤ 30 Vdc − − 1.0 − − 0.8 5.0 mA ≤ IO ≤ 1.0 A − − 0.5 − − 0.5 Ripple Rejection RR − 60 − 55 60 − dB 15 Vdc ≤ Vin ≤ 25 Vdc, f = 120 Hz Dropout Voltage (IO = 1.0 A, TJ = 25°C) VI − VO − 2.0 − − 2.0 − Vdc Output Noise Voltage (TA = 25°C) Vn − 10 − − 10 − mV/VO 10 Hz ≤ f ≤ 100 kHz Output Resistance f = 1.0 kHz rO − 1.1 − − 1.1 − mW Short Circuit Current Limit (TA = 25°C) ISC − 0.2 − − 0.2 − A Vin = 35 Vdc Peak Output Current (TJ = 25°C) Imax − 2.2 − − 2.2 − A Average Temperature Coefficient of Output Voltage TCVO − −0.8 − − −0.8 − mV/°C 17.Tlow =0°C for MC78XXC, MC78XXAC, = *40°C for NCV78XX, MC78XXB, MC78XXAB, and MC78XXAEB 18.Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. |
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