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L7808CD2T Arkusz danych(PDF) 5 Page - STMicroelectronics |
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L7808CD2T Arkusz danych(HTML) 5 Page - STMicroelectronics |
5 / 34 page L7800 SERIES 5/34 Figure 7: Ripple Rejection Table 4: Electrical Characteristics Of L7805 (refer to the test circuits, TJ = -55 to 150°C, VI = 10V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified). (*) 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. Symbol Parameter Test Conditions Min. Typ. Max. Unit VO Output Voltage TJ = 25°C 4.8 5 5.2 V VO Output Voltage IO = 5 mA to 1 A PO ≤ 15W VI = 8 to 20 V 4.65 5 5.35 V ∆V O(*) Line Regulation VI = 7 to 25 V TJ = 25°C 3 50 mV VI = 8 to 12 V TJ = 25°C 1 25 ∆V O(*) Load Regulation IO = 5 mA to 1.5 A TJ = 25°C 100 mV IO = 250 to 750 mA TJ = 25°C 25 Id Quiescent Current TJ = 25°C 6 mA ∆I d Quiescent Current Change IO = 5 mA to 1 A 0.5 mA VI = 8 to 25 V 0.8 ∆V O/∆T Output Voltage Drift IO = 5 mA 0.6 mV/°C eN Output Noise Voltage B =10Hz to 100KHz TJ = 25°C 40 µV/V O SVR Supply Voltage Rejection VI = 8 to 18 V f = 120Hz 68 dB Vd Dropout Voltage IO = 1 A TJ = 25°C 2 2.5 V RO Output Resistance f = 1 KHz 17 m Ω Isc Short Circuit Current VI = 35 V TJ = 25°C 0.75 1.2 A Iscp Short Circuit Peak Current TJ = 25°C 1.3 2.2 3.3 A |
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