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KA78XXR Datasheet(PDF) 11 Page - Fairchild Semiconductor |
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KA78XXR Datasheet(HTML) 11 Page - Fairchild Semiconductor |
11 / 28 page LM78XX (KA78XX, MC78XX) FIXED VOLTAGE REGULATOR (POSITIVE) LM7824/I/R/RI ELECTRICAL CHARACTERISTICS (Refer to test circuit, TMIN<TJ<TMAX, IO = 500mA, VI = 33V, CI = 0.33 µF, C O = 0.1 µF, unless otherwise specified) * TMIN <TJ <TMAX LM78XXI/RI: TMIN= - 40 °C, T MAX = +125 °C LM78XX/R: TMIN= 0 °C, T MAX= +125 °C * 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. LM7824I LM7824 Min Typ Max Min Typ Max TJ =+25 °C 23 24 25 23 24 25 Output Voltage VO 5.0mA ≤ I O ≤ 1.0A, P D ≤ 15W VI = 27V to 38V VI= 28V to 38V 22.8 24 25.2 22.8 24 25.25 V VI = 27V to 38V 17 480 17 480 VI = 30V to 36V 6 240 6 240 IO = 5mA to 1.5A 15 480 15 480 IO = 250mA to 750mA 5.0 240 5.0 240 Quiescent Current IQ TJ =+25 °C 5.2 8 5.2 8 mA IO = 5mA to 1.0A 0.1 0.5 0.1 0.5 Quiescent Current Change ∆I Q VI = 27V to 38V 0.5 1 mA VI = 28V to 38V 0.5 1 Output Voltage Drift ∆V O/ ∆T IO = 5mA -1.5 -1.5 mV/ °C Output Noise Voltage VN f = 10Hz to 100KHz, TA =+25 °C 160 60 µV/V O Ripple Rejection RR f = 120Hz VI = 28V to 38V 50 67 50 67 dB Dropout Voltage VD IO = 1A, TJ=+25 °C 2 2 V Output Resistance RO f = 1KHz 28 28 m Ω Short Circuit Current ISC VI = 35V, TA=+25 °C 230 230 mA Peak Current IPK TJ =+25 °C 2.2 2.2 A Unit Line Regulation ∆V O ∆V O TJ =+25 °C TJ =+25 °C Load Regulation Characteristic Symbol Test Conditions mV mV |
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