Moteur de recherche de fiches techniques de composants électroniques |
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UC2854B-EP Fiches technique(PDF) 4 Page - Texas Instruments |
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UC2854B-EP Fiches technique(HTML) 4 Page - Texas Instruments |
4 / 13 page UC2854BEP SGLS318 − NOVEMBER 2005 4 www.ti.com ELECTRICAL CHARACTERISTICS VCC = 18 V, RT = 8.2 kΩ, CT = 1.5 nF, VPKLMT = 1 V, VVRMS = 1.5 V, IIAC = 100 µA, IISENSE = 0 V, VCAO = 3.5 V, VVAO = 5 V, VVSENSE = 3 V PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OVERALL Supply current, off CAO = 0 V, VAO = 0 V, VCC = VUVLO−0.3 V 250 400 µA Supply current, on 12 18 mA VCC turn-on threshold voltage 8 10.5 11.2 VCC turn-off threshold voltage 9 10 12 V VCC clamp IVCC = IVCC(on) + 5 mA 18 20 22 V VOLTAGE AMPLIFIER Input voltage 2.9 3 3.1 V VSENSE bias current −500 −25 500 nA Open loop gain 2 V ≤ VOUT ≤ 5 V 70 100 dB VOH High-level output voltage ILOAD = −500 µA 6 V VOL Low-level output voltage ILOAD = 500 µA 0.3 0.5 V ISC Output short-circuit current VOUT = 0 V 1.5 3.5 mA Gain bandwidth product(1) fIN = 100 kHz, 10 mVP−P 1 MHz CURRENT AMPLIFIER Input offset voltage VCM = 0 V, TA = 25°C −4 0 mV Input offset voltage VCM = 0 V, overtemperature −5.5 0 mV Input bias current, ISENSE VCM = 0 V −500 500 nA Open loop gain 2 V ≤ VOUT ≤ 6 V 80 110 dB VOH High-level output voltage ILOAD = −500 µA 8 V VOL Low-level output voltage ILOAD = 500 µA 0.3 0.5 V ISC Output short-circuit current VOUT = 0 V 1.5 3.5 mA CMRR Common mode rejection range −0.3 5 V Gain bandwidth product(1) fIN = 100 kHz, 10 mVP−P 3 5 MHz REFERENCE Output voltage IREF = 0 mA, TA = 25°C 7.4 7.5 7.6 V Output voltage IREF = 0 mA 7.35 7.5 7.65 V Load regulation 1 mA ≤ IREF ≤ 10 mA 0 8 20 mV Line regulation 12 V ≤ VCC ≤ 18 V 0 14 25 mV ISC Short circuit current VREF = 0 V 25 35 60 mA (1) Ensured by design. Not production tested. (2) Gain constant. (K) + I IAC V VAO * 1.5 V V VRMS 2 I MOUT |
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