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MC7812CT Folha de dados(PDF) 13 Page - ON Semiconductor |
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MC7812CT Folha de dados(HTML) 13 Page - ON Semiconductor |
13 / 32 page MC7800, MC7800A, NCV7805 http://onsemi.com 13 ELECTRICAL CHARACTERISTICS (Vin = 23 V, IO = 500 mA, TJ = Tlow to Thigh (Note 20), unless otherwise noted) MC7815B MC7815C Characteristic Symbol Min Typ Max Min Typ Max Unit Output Voltage (TJ = 25°C) VO 14.4 15 15.6 14.4 15 15.6 Vdc Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) VO Vdc 17.5 Vdc ≤ Vin ≤ 30 Vdc − − − 14.25 15 15.75 18.5 Vdc ≤ Vin ≤ 30 Vdc 14.25 15 15.75 − − − Line Regulation, TJ = 25°C (Note 21) Regline mV 17.9 Vdc ≤ Vin ≤ 30 Vdc − 8.5 300 − 8.5 30 20 Vdc ≤ Vin ≤ 26 Vdc − 3.0 150 − 3.0 28 Load Regulation, TJ = 25°C (Note 21) Regload − 1.8 300 − 1.8 55 mV 5.0 mA ≤ IO ≤ 1.5 A Quiescent Current IB − 3.5 8.0 − 3.5 6.5 mA Quiescent Current Change DIB mA 17.5 Vdc ≤ Vin ≤ 30 Vdc − − − − − 0.8 17.5 Vdc ≤ Vin ≤ 30 Vdc, IO = 1.0 A, TJ = 25°C − − 1.0 − − 0.7 5.0 mA ≤ IO ≤ 1.0 A − − 0.5 − − 0.5 Ripple Rejection RR − 58 − 54 58 − dB 18.5 Vdc ≤ Vin ≤ 28.5 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 − 1.2 − − 1.2 − m W 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 − −1.0 − − −1.0 − mV/ °C 20. Tlow =0°C for MC78XXAC, C Thigh = +125°C for MC78XXAC, C, NCV7805 = *40°C for MC78XXB, MC78XXAB, NCV7805 21. 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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