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KA7918TU Scheda tecnica(PDF) 5 Page - Fairchild Semiconductor |
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KA7918TU Scheda tecnica(HTML) 5 Page - Fairchild Semiconductor |
5 / 18 page © 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com KA79XX / KA79XXA / LM79XX Rev. 1.1.0 5 Electrical Characteristics (KA7908 / LM7908) (VI = -14 V, IO = 500 mA, 0°C ≤ TJ ≤ +125°C, CI = 2.2 μF, CO =1 μF; unless otherwise specified.) Note: 5. 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. Symbol Parameter Conditions Min. Typ. Max. Unit VO Output Voltage TJ =+25°C -7.7 -8.0 -8.3 V IO = 5 mA to 1 A, PO ≤ 15 W, VI = -10 V to -23 V -7.6 -8.0 -8.4 ΔVO Line Regulation(5) TJ = +25°C VI = -10.5 V to -25 V 10 160 mV VI = -11 V to -17 V 5 80 ΔVO Load Regulation(5) TJ = +25°C, IO = 5 mA to 1.5 A 12 160 mV TJ = +25°C, IO = 250 mA to 750 mA 4 80 IQ Quiescent Current TJ = +25°C3 6 mA ΔIQ Quiescent Current Change IO = 5 mA to 1 A 0.05 0.50 mA VI = -10.5 V to -25 V 0.10 1.00 ΔVo/ΔT Temperature Coefficient of VD IO = 5 mA -0.6 mV/ °C VN Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C175 μV RR Ripple Rejection f = 120 Hz, ΔVI = 10 V 54 60 dB VD Dropout Voltage TJ =+25°C, IO = 1 A 2 V ISC Short-Circuit Current TJ =+25°C, VI = -35 V 300 mA IPK Peak Current TJ = +25°C2.2 A |
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