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MC7808ABD2TR4G bảng dữ liệu(PDF) 11 Page - ON Semiconductor |
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11 / 30 page MC7800, MC7800A, MC7800AE, NCV7800 http://onsemi.com 11 ELECTRICAL CHARACTERISTICS (Vin = 19 V, IO = 500 mA, TJ = Tlow to 125C (Note 17), unless otherwise noted) MC7812B/NCV7812B MC7812C Characteristic Symbol Min Typ Max Min Typ Max Unit Output Voltage (TJ = 25C) VO 11.5 12 12.5 11.5 12 12.5 Vdc Output Voltage (5.0 mA IO 1.0 A, PD 15 W) 14.5 Vdc Vin 27 Vdc 15.5 Vdc Vin 27 Vdc VO − 11.4 − 12 − 12.6 11.4 − 12 − 12.6 − Vdc Line Regulation, TJ = 25C (Note 18) 14.5 Vdc Vin 30 Vdc 16 Vdc Vin 22 Vdc 14.8 Vdc Vin 27 Vdc, IO = 1.0 A Regline − − − 7.5 2.2 − 240 120 − − − − 3.8 0.3 − 24 24 48 mV Load Regulation, TJ = 25C (Note 18) 5.0 mA IO 1.5 A Regload − 1.6 240 − 8.1 60 mV Quiescent Current IB − 3.4 8.0 − 3.4 6.5 mA Quiescent Current Change 14.5 Vdc Vin 30 Vdc, IO = 1.0 A, TJ = 25C 15 Vdc Vin 30 Vdc 5.0 mA IO 1.0 A DIB − − − − − − − 1.0 0.5 − − − − − − 0.7 0.8 0.5 mA Ripple Rejection 15 Vdc Vin 25 Vdc, f = 120 Hz RR − 60 − 55 60 − dB Dropout Voltage (IO = 1.0 A, TJ = 25C) VI − VO − 2.0 − − 2.0 − Vdc Output Noise Voltage (TA = 25C) 10 Hz f 100 kHz Vn − 10 − − 10 − mV/VO Output Resistance f = 1.0 kHz rO − 1.1 − − 1.1 − mW Short Circuit Current Limit (TA = 25C) Vin = 35 Vdc ISC − 0.2 − − 0.2 − A Peak Output Current (TJ = 25C) Imax − 2.2 − − 2.2 − A Average Temperature Coefficient of Output Voltage TCVO − −0.8 − − −0.8 − mV/C 17.Tlow =0C for MC78XXC, MC78XXAC, = *40C 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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