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L7805AB 数据表(PDF) 11 Page - STMicroelectronics |
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L7805AB 数据表(HTML) 11 Page - STMicroelectronics |
11 / 26 page L78xxAB - L78xxAC Electrical characteristics 11/26 Table 8. Electrical characteristics of L7812A (VI = 19 V, IO = 1 A, TJ = 0 to 150 °C (L7812AC), TJ = -40 to 125 °C (L7812AB), unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 11.75 12 12.25 V VO Output voltage IO = 5mA to 1A, PO ≤15W VI = 14.8 to 27V 11.5 12 12.5 V ΔVO (1) Line regulation VI = 14.8 to 30V, IO = 500 mA 13 120 mV VI = 16 to 12V 16 120 mV VI = 16 to 12V, TJ = 25°C 6 60 mV VI = 14.5 to 27V, TJ = 25°C 13 120 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 4.4 6 mA 6mA ΔIq Quiescent current change VI = 15 to 30V, IO = 500 mA 0.8 mA VI = 14.8 to 27V, TJ = 25°C 0.8 mA IO = 5mA to 1A 0.5 mA SVR Supply voltage rejection VI = 15 to 25V, f = 120Hz, IO = 500mA 60 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 -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. |
类似零件编号 - L7805AB_08 |
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类似说明 - L7805AB_08 |
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