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7808 Datasheet(PDF) 7 Page - Motorola, Inc |
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7808 Datasheet(HTML) 7 Page - Motorola, Inc |
7 / 16 page ![]() MC7800, MC7800A, LM340, LM340A Series 7 MOTOROLA ANALOG IC DEVICE DATA ELECTRICAL CHARACTERISTICS (Vin = 15 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.) MC7809CT Characteristic Symbol Min Typ Max Unit Output Voltage (TJ = 25°C) VO 8.65 9.0 9.35 Vdc Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) VO 8.55 9.0 9.45 Vdc 11.5 Vdc ≤ Vin ≤ 24 Vdc Line Regulation, TJ = 25°C (Note 2) Regline mV 11 Vdc ≤ Vin ≤ 26 Vdc – 6.2 32 11.5 Vdc ≤ Vin ≤ 17 Vdc – 1.8 16 Load Regulation, TJ = 25°C (Note 2) Regload – 1.5 35 mV 5.0 mA ≤ IO ≤ 1.5 A Quiescent Current IB – 3.4 8.0 mA Quiescent Current Change ∆IB mA 11.5 Vdc ≤ Vin ≤ 26 Vdc – – 1.0 5.0 mA ≤ IO ≤ 1.0 A – – 0.5 Ripple Rejection RR 56 61 – dB 11.5 Vdc ≤ Vin ≤ 21.5 Vdc, f = 120 Hz Dropout Voltage (IO = 1.0 A, TJ = 25°C) VI – VO – 2.0 – Vdc Output Noise Voltage (TA = 25°C) Vn – 10 – µV/VO 10 Hz ≤ f ≤ 100 kHz Output Resistance f = 1.0 kHz rO – 1.0 – m Ω Short Circuit Current Limit (TA = 25°C) ISC – 0.2 – A Vin = 35 Vdc Peak Output Current (TJ = 25°C) Imax – 2.2 – A Average Temperature Coefficient of Output Voltage TCVO – –0.5 – mV/ °C ELECTRICAL CHARACTERISTICS (Vin = 19 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.) MC7812C/LM340T–12 Characteristic Symbol Min Typ Max Unit Output Voltage (TJ = 25°C) VO 11.5 12 12.5 Vdc Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) VO 11.4 12 12.6 Vdc 14.5 Vdc ≤ Vin ≤ 27 Vdc Line Regulation, TJ = 25°C (Note 2) Regline mV 14.5 Vdc ≤ Vin ≤ 30 Vdc – 3.8 24 16 Vdc ≤ Vin ≤ 22 Vdc – 0.3 24 14.8 Vdc ≤ Vin ≤ 27 Vdc, IO = 1.0 A – – 48 Load Regulation, TJ = 25°C (Note 2) Regload – 8.1 60 mV 5.0 mA ≤ IO ≤ 1.5 A Quiescent Current IB – 3.4 6.5 mA Quiescent Current Change ∆IB mA 14.5 Vdc ≤ Vin ≤ 30 Vdc, IO = 1.0 A, TJ = 25°C – – 0.7 15 Vdc ≤ Vin ≤ 30 Vdc – – 0.8 5.0 mA ≤ IO ≤ 1.0 A – – 0.5 Ripple Rejection RR 55 60 – dB 15 Vdc ≤ Vin ≤ 25 Vdc, f = 120 Hz Dropout Voltage (IO = 1.0 A, TJ = 25°C) VI – VO – 2.0 – Vdc NOTES: 1. Tlow = –40°C for MC78XXAC, C, LM340AT–XX, LM340T–XX Thigh = +125°C for MC78XXAC, C, LM340AT–XX, LM340T–XX 2. 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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