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LM140 Scheda tecnica(PDF) 7 Page - Texas Instruments |
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LM140 Scheda tecnica(HTML) 7 Page - Texas Instruments |
7 / 28 page LM340-N, LM78xx www.ti.com SNOSBT0J – FEBRUARY 2000 – REVISED DECEMBER 2013 LM340-N Electrical Characteristics (1) (continued) 0°C ≤ TJ ≤ +125°C unless otherwise specified Output Voltage 5V 12V 15V Symbol Input Voltage (unless otherwise noted) 10V 19V 23V Units Parameter Conditions Min Typ Max Min Typ Max Min Typ Max RO Dropout Voltage TJ = 25°C, IO = 1A 2.0 2.0 2.0 V Output f = 1 kHz 8 18 19 m Ω Resistance Short-Circuit TJ = 25°C 2.1 1.5 1.2 A Current Peak Output TJ = 25°C 2.4 2.4 2.4 A Current Average TC of 0°C ≤ TJ ≤ +125°C, IO = 5 −0.6 −1.5 −1.8 mV/°C VOUT mA VIN Input Voltage TJ = 25°C, IO ≤ 1A Required to 7.5 14.6 17.7 V Maintain Line Regulation LM7808C Electrical Characteristics 0°C ≤ TJ ≤ +150°C, VI = 14V, IO = 500 mA, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified Symbol Parameter Conditions(1) LM7808C Units Min Typ Max VO Output Voltage TJ = 25°C 7.7 8.0 8.3 V ΔVO Line Regulation TJ = 25°C 10.5V ≤ VI ≤ 25V 6.0 160 mV 11.0V ≤ VI ≤ 17V 2.0 80 ΔVO Load Regulation TJ = 25°C 5.0 mA ≤ IO ≤ 1.5A 12 160 mV 250 mA ≤ IO ≤ 750 mA 4.0 80 VO Output Voltage 11.5V ≤ VI ≤ 23V, 5.0 mA ≤ IO ≤ 1.0A, P ≤ 15W 7.6 8.4 V IQ Quiescent Current TJ = 25°C 4.3 8.0 mA ΔIQ Quiescent With Line 11.5V ≤ VI ≤ 25V 1.0 mA Current Change With Load 5.0 mA ≤ IO ≤ 1.0A 0.5 VN Noise TA = 25°C, 10 Hz ≤ f ≤ 100 kHz 52 μV ΔVI/ΔVO Ripple Rejection f = 120 Hz, IO = 350 mA, TJ = 25°C 56 72 dB VDO Dropout Voltage IO = 1.0A, TJ = 25°C 2.0 V RO Output Resistance f = 1.0 kHz 16 m Ω IOS Output Short Circuit Current TJ = 25°C, VI = 35V 0.45 A IPK Peak Output Current TJ = 25°C 2.2 A ΔVO/ΔT Average Temperature Coefficient of IO = 5.0 mA 0.8 mV/°C Output Voltage (1) All characteristics are measured with a 0.22 μF capacitor from input to ground and a 0.1 μF capacitor from output to ground. All characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tw ≤ 10 ms, duty cycle ≤ 5%). Output voltage changes due to changes in internal temperature must be taken into account separately. Copyright © 2000–2013, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: LM340-N LM78xx |
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