MC78XX/LM78XX/MC78XXA Electrical Characteristics(MC7808) (Refer to test circuit.C<TJ<125C.lo=500mA,VI=14V.Cl=0.33uF.Co=0.1uF,unless otherwise specified) MC7808 Parameter Symbol Conditions Min.Typ.Max. Unit T小=+25℃ 7.78.08.3 Output Voltage 7.6 8 4 Line Requlation (Note1) Regline TJ=+25℃ VI=10.5V to 25V 5.0160 mV Vi=11.5V to 17V 2.080 10160 Load Regulation (Note1) Regload TJ=+25℃ lo 5.0mA to 1.5A 10=250mAto750mA 5.080 mV Quiescent Current TJ=+25℃ 5.08.0mA lo=5mA to 1.0A 0.050.5 Quiescent Current Change 1=10.5Ato25V mA 0.51.0 Output Voltage Drift AVO/AT lo=5mA -0.8 Output Noise Voltage VN f=10Hz to 100KHz.TA=+25C 52-uVNo Ripple Reiection RR f=120Hz,VI=11.5V to 21.5V 56 73. dB Dropout Voltage VDrop Output Resistance ro 17 Short Circuit Current ISC V=35V.TA =+25C 230-mA Peak Current IPK TJ=+25C 22.A in Vo must he taker MC78XX/LM78XX/MC78XXA 4 Electrical Characteristics (MC7808) (Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =14V, CI= 0.33µF, CO= 0.1µF, unless otherwise specified) Note: 1. 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 is used. Parameter Symbol Conditions MC7808 Unit Min. Typ. Max. Output Voltage VO TJ =+25 oC 7.7 8.0 8.3 5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W VI = 10.5V to 23V 7.6 8.0 8.4 V Line Regulation (Note1) Regline TJ =+25 oC VI = 10.5V to 25V - 5.0 160 mV VI = 11.5V to 17V - 2.0 80 Load Regulation (Note1) Regload TJ =+25 oC IO = 5.0mA to 1.5A - 10 160 mV IO= 250mA to 750mA - 5.0 80 Quiescent Current IQ TJ =+25 oC - 5.0 8.0 mA Quiescent Current Change ∆IQ IO = 5mA to 1.0A - 0.05 0.5 mA VI = 10.5A to 25V - 0.5 1.0 Output Voltage Drift ∆VO/∆T IO = 5mA - -0.8 - mV/ oC Output Noise Voltage VN f = 10Hz to 100KHz, TA =+25 oC - 52 - µV/Vo Ripple Rejection RR f = 120Hz, VI= 11.5V to 21.5V 56 73 - dB Dropout Voltage VDrop IO = 1A, TJ=+25 oC -2- V Output Resistance rO f = 1KHz - 17 - mΩ Short Circuit Current ISC VI= 35V, TA =+25 oC - 230 - mA Peak Current IPK TJ =+25 oC - 2.2 - A