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LM7805 데이터시트(PDF) 19 Page - Fairchild Semiconductor |
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LM7805 데이터시트(HTML) 19 Page - Fairchild Semiconductor |
19 / 28 page MC78XX/LM78XX/MC78XXA 19 Electrical Characteristics (MC7824A) (Refer to the test circuits. 0 °C < TJ < 125°C, Io =1A, V I = 33V, C I=0.33µF, C O=0.1µF, unless otherwise specified) Note: 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage VO TJ =+25 °C 23.5 24 24.5 V IO = 5mA to 1A, PO ≤15W VI = 27.3V to 38V 23 24 25 Line Regulation (Note1) Regline VI= 27V to 38V IO = 500mA - 18 240 mV VI= 21V to 33V - 6 240 TJ =+25 °C VI= 26.7V to 38V - 18 240 VI= 30V to 36V - 6 120 Load Regulation (Note1) Regload TJ =+25 °C IO = 5mA to 1.5A - 15 100 mV IO = 5mA to 1.0A - 15 100 IO = 250mA to 750mA - 7 50 Quiescent Current IQ TJ =+25 °C- 5.2 6.0 mA Quiescent Current Change ∆IQ VI = 27.3V to 38V, TJ =+25 °C- - 0.8 mA VI = 27.3V to 38V, IO = 500mA - - 0.8 IO = 5mA to 1.0A - - 0.5 Output Voltage Drift ∆V/∆T IO = 5mA - -1.5 - mV/ °C Output Noise Voltage VN f = 10Hz to 100KHz TA = 25 °C -10 - µV/Vo Ripple Rejection RR f = 120Hz, IO = 500mA VI = 28V to 38V -54 - dB Dropout Voltage VDrop IO = 1A, TJ =+25 °C- 2.0 - V Output Resistance rO f = 1KHz - 20 - m Ω Short Circuit Current ISC VI= 35V, TA =+25 °C - 250 - mA Peak Current IPK TJ=+25 °C- 2.2 - A |
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