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L7912CT 데이터시트(PDF) 7 Page - STMicroelectronics |
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L7912CT 데이터시트(HTML) 7 Page - STMicroelectronics |
7 / 16 page L7900 SERIES 7/16 ELECTRICAL CHARACTERISTICS OF L7920C (refer to the test circuits, TJ = 0 to 125°C, VI = -29V, IO =500 mA, CI =2.2 µF, CO = 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. ELECTRICAL CHARACTERISTICS OF L7922C (refer to the test circuits, TJ = 0 to 125°C, VI = -31V, IO =500 mA, CI =2.2 µF, CO = 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 -19.2 -20 -20.8 V VO Output Voltage IO =-5mAto -1A PO ≤ 15 W VI = -24 to -35 V -19 -20 -21 V ∆V O(*) Line Regulation VI = -23 to -35 V TJ = 25°C 400 mV VI = -26 to -32 V TJ = 25°C 200 ∆V O(*) Load Regulation IO =5mAto 1.5 A TJ = 25°C 400 mV IO = 250 to 750 mA TJ = 25°C 200 Id Quiescent Current TJ = 25°C 3 mA ∆I d Quiescent Current Change IO =5mAto 1 A 0.5 mA VI = -24 to -35 V 1 ∆V O/∆T Output Voltage Drift IO = 5 mA -1.1 mV/°C eN Output Noise Voltage B = 10Hz to 100KHz TJ = 25°C 350 µV SVR Supply Voltage Rejection ∆V I = 10 V f = 120Hz 54 60 dB Vd Dropout Voltage IO =1A TJ = 25°C ∆V O = 100 mV 1.1 V Isc Short Circuit Current 0.9 A Symbol Parameter Test Conditions Min. Typ. Max. Unit VO Output Voltage TJ = 25°C -21.1 -22 -22.9 V VO Output Voltage IO =-5mAto -1A PO ≤ 15 W VI = -26 to -37 V -20.9 -22 -23.1 V ∆V O(*) Line Regulation VI = -25 to -37 V TJ = 25°C 440 mV VI = -28 to -34 V TJ = 25°C 220 ∆V O(*) Load Regulation IO =5mAto 1.5 A TJ = 25°C 440 mV IO = 250 to 750 mA TJ = 25°C 220 Id Quiescent Current TJ = 25°C 3 mA ∆I d Quiescent Current Change IO =5mAto 1 A 0.5 mA VI = -26 to -37 V 1 ∆V O/∆T Output Voltage Drift IO = 5 mA -1.1 mV/°C eN Output Noise Voltage B = 10Hz to 100KHz TJ = 25°C 375 µV SVR Supply Voltage Rejection ∆V I = 10 V f = 120Hz 54 60 dB Vd Dropout Voltage IO =1A TJ = 25°C ∆V O = 100 mV 1.1 V Isc Short Circuit Current 1.1 A |
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