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MC7808ACT bảng dữ liệu(PDF) 3 Page - Motorola, Inc |
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MC7808ACT bảng dữ liệu(HTML) 3 Page - Motorola, Inc |
3 / 16 page MC7800, MC7800A, LM340, LM340A Series 3 MOTOROLA ANALOG IC DEVICE DATA ELECTRICAL CHARACTERISTICS (Vin = 10 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.) MC7805C/LM340T–5 Characteristic Symbol Min Typ Max Unit Output Voltage (TJ = 25°C) VO 4.8 5.0 5.2 Vdc Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) VO Vdc 7.0 Vdc ≤ Vin ≤ 20 Vdc 4.75 5.0 5.25 8.0 Vdc ≤ Vin ≤ 20 Vdc – – – Line Regulation (Note 2) Regline mV 7.5 Vdc ≤ Vin ≤ 20 Vdc, 1.0 A – 0.5 20 8.0 Vdc ≤ Vin ≤ 12 Vdc – 0.8 10 Load Regulation (Note 2) Regload mV 5.0 mA ≤ IO ≤ 1.0 A – 1.3 25 5.0 mA ≤ IO ≤ 1.5 A (TA = 25°C) - 1.3 25 Quiescent Current IB – 3.2 6.5 mA Quiescent Current Change ∆IB mA 7.0 Vdc ≤ Vin ≤ 25 Vdc – 0.3 1.0 5.0 mA ≤ IO ≤ 1.0 A (TA = 25°C) – 0.08 0.8 Ripple Rejection RR 62 83 – dB 8.0 Vdc ≤ Vin ≤ 18 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 – 0.9 – m Ω Short Circuit Current Limit (TA = 25°C) ISC – 0.6 – A Vin = 35 Vdc Peak Output Current (TJ = 25°C) Imax – 2.2 – A Average Temperature Coefficient of Output Voltage TCVO – –0.3 – mV/ °C ELECTRICAL CHARACTERISTICS (Vin = 10 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.) MC7805AC/LM340AT–5 Characteristic Symbol Min Typ Max Unit Output Voltage (TJ = 25°C) VO 4.9 5.0 5.1 Vdc Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) VO 4.8 5.0 5.2 Vdc 7.5 Vdc ≤ Vin ≤ 20 Vdc Line Regulation (Note 2) Regline mV 7.5 Vdc ≤ Vin ≤ 25 Vdc, IO = 500 mA – 0.5 10 8.0 Vdc ≤ Vin ≤ 12 Vdc, IO = 1.0 A – 0.8 12 8.0 Vdc ≤ Vin ≤ 12 Vdc, IO = 1.0 A, TJ = 25°C – 1.3 4.0 7.3 Vdc ≤ Vin ≤ 20 Vdc, IO = 1.0 A, TJ = 25°C – 4.5 10 Load Regulation (Note 2) Regload mV 5.0 mA ≤ IO ≤ 1.5 A, TJ = 25°C – 1.3 25 5.0 mA ≤ IO ≤ 1.0 A – 0.8 25 250 mA ≤ IO ≤ 750 mA – 0.53 15 Quiescent Current IB – 3.2 6.0 mA Quiescent Current Change ∆IB mA 8.0 Vdc ≤ Vin ≤ 25 Vdc, IO = 500 mA – 0.3 0.8 7.5 Vdc ≤ Vin ≤ 20 Vdc, TJ = 25°C – – 0.8 5.0 mA ≤ IO ≤ 1.0 A – 0.08 0.5 Ripple Rejection RR 68 83 – dB 8.0 Vdc ≤ Vin ≤ 18 Vdc, f = 120 Hz, IO = 500 mA 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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