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L7812AB 데이터시트(PDF) 11 Page - STMicroelectronics |
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L7812AB 데이터시트(HTML) 11 Page - STMicroelectronics |
11 / 28 page L7800AB/AC series Electrical characteristics 11/28 Table 8. Electrical characteristics of L7815A (VI = 23V, IO=1A, TJ = 0 to 150°C (L7815AC), TJ = -40 to 125°C (L7815AB), unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 14.7 15 15.3 V VO Output voltage IO = 5mA to 1A, PO ≤15W VI = 17.9 to 30V 14.4 15 15.6 V ∆VO (1) Line regulation VI = 17.9 to 30V, IO = 500 mA 13 150 mV VI = 20 to 26V 16 150 mV VI = 20 to 26V, TJ = 25°C 6 75 mV VI = 17.5 to 30V, TJ = 25°C 13 150 mV ∆VO (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 4.4 6 mA 6mA ∆Iq Quiescent current change VI = 17.5 to 30V, IO = 500 mA 0.8 mA VI = 17.5 to 30V, TJ = 25°C 0.8 mA IO = 5mA to 1A 0.5 mA SVR Supply voltage rejection VI = 18.5 to 28.5V, f = 120Hz, IO = 500mA 58 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 19 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 ∆VO/∆T Output voltage drift -1 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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