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L7912CV Arkusz danych(PDF) 4 Page - STMicroelectronics |
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L7912CV Arkusz danych(HTML) 4 Page - STMicroelectronics |
4 / 13 page * Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used. ELECTRICAL CHARACTERISTICS FOR L7906C (refer to the test circuits, Tj = 0 to 150 oC, Vi = -11V, Io = 500 mA, Ci = 2.2 µF, Co =1 µF unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit Vo Output Voltage Tj =25 oC -5. 75 -6 -6.25 V Vo Output Voltage Io = -5mA to -1A Po ≤ 15 W Vi = -9.5 to -21.5 V -5.7 -6 -6.3 V ∆Vo* Line Regulation Vi = -8.5 to -25 V Tj =25 oC Vi =-9 to -15 V Tj =25 oC 120 60 mV mV ∆Vo* Load Regulation Io = 5 to 1500 mA Tj =25 oC Io = 250 to 750 mA Tj =25 oC 120 60 mV mV Id Quiescent Current Tj =25 oC3 mA ∆Id Quiescent Current Change Io = 5 to 1000 mA 0.5 mA ∆Id Quiescent Current Change Vi = -9.5 to -25 V 1.3 mA ∆Vo ∆T Output Voltage Drift Io = 5 mA -0. 6 mV/ oC eN Output Noise Voltage B = 10Hz to 100KHz Tj =25 oC144 µV SVR Supply Voltage Rejection ∆Vi = 10 V f = 120 Hz 54 60 dB Vd Dropout Voltage Io =1 A Tj =25 oC ∆VO =100 mV 1.4 V Isc Short Circuit Current 2 A Iscp Short Circuit Peak Current Tj =25 oC2.5 A ELECTRICAL CHARACTERISTICS FOR L7908C (refer to the test circuits, Tj = 0 to 150 oC, Vi = -14V, Io = 500 mA, Ci = 2.2 µF, Co =1 µF unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit Vo Output Voltage Tj =25 oC-7.7 -8 -8.3 V Vo Output Voltage Io = -5mA to -1A Po ≤ 15 W Vi = -11.5 to -23 V -7.6 -8 -8.4 V ∆Vo* Line Regulation Vi = -10.5 to -25 V Tj =25 oC Vi = -11 to -17 V Tj =25 oC 160 80 mV mV ∆Vo* Load Regulation Io = 5 to 1500 mA Tj =25 oC Io = 250 to 750 mA Tj =25 oC 160 80 mV mV Id Quiescent Current Tj =25 oC3 mA ∆Id Quiescent Current Change Io = 5 to 1000 mA 0.5 mA ∆Id Quiescent Current Change Vi = -11.5 to -25 V 1.3 mA ∆Vo ∆T Output Voltage Drift Io = 5 mA -0. 6 mV/ oC eN Output Noise Voltage B = 10Hz to 100KHz Tj =25 oC175 µV SVR Supply Voltage Rejection ∆Vi = 10 V f = 120 Hz 54 60 dB Vd Dropout Voltage Io =1 A Tj =25 oC ∆VO =100 mV 1.1 V Isc Short Circuit Current 1.5 A Iscp Short Circuit Peak Current Tj =25 oC2.5 A L7900 4/13 |
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