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L7809ACV Scheda tecnica(PDF) 9 Page - STMicroelectronics |
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L7809ACV Scheda tecnica(HTML) 9 Page - STMicroelectronics |
9 / 26 page ![]() L78xxAB - L78xxAC Electrical characteristics 9/26 Table 6. Electrical characteristics of L7808A (VI = 14 V, IO = 1 A, TJ = 0 to 150 °C (L7808AC), TJ = -40 to 125 °C (L7808AB), unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 7.84 8 8.16 V VO Output voltage IO = 5mA to 1A, PO ≤15W VI = 10.6 to 23V 7.7 8 8.3 V ΔVO (1) Line regulation VI = 10.6 to 25V, IO = 500 mA 12 80 mV VI = 11 to 17V 15 80 mV VI = 11 to 17V, TJ = 25°C 5 40 mV VI = 10.4 to 23V, TJ = 25°C 12 80 mV ΔVO (1) Load regulation IO = 5mA to 1A 25 100 mV IO = 5mA to 1.5A, TJ = 25°C 30 100 V IO = 250 to 750mA 10 50 V Iq Quiescent current TJ = 25°C 4.3 6 mA 6mA ΔIq Quiescent current change VI = 11 to 25V, IO = 500 mA 0.8 mA VI = 10.6 to 23V, TJ = 25°C 0.8 mA IO = 5mA to 1A 0.5 mA SVR Supply voltage rejection VI = 11.5 to 21.5V, f = 120Hz, IO = 500mA 62 dB Vd Dropout voltage IO = 1A, TJ = 25°C 2 V eN Output noise voltage TA = 25°C, B =10Hz to 100kHz 10 µV/VO RO Output resistance f =1kHz 18 m Ω Isc Short circuit current VI = 35V, TA = 25°C 0.2 A Iscp Short circuit peak current TJ = 25°C 2.2 A ΔVO/ΔT Output voltage drift -0.8 mV/°C 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 cycle is used. |
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