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UC2854ADWTR датащи(PDF) 4 Page - Texas Instruments |
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UC2854ADWTR датащи(HTML) 4 Page - Texas Instruments |
4 / 18 page www.ti.com ELECTRICAL CHARACTERISTICS UC1854A UC2854A, UC2854B UC3854A, UC3854B SLUS329E – MONTH 2003 – REVISED JANUARY 2008 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, –40°C < TA < 85°C for the UC2854A and UC2854B, and 0°C < TA < 70°C for the UC3854A and UC3854B, and TA = TJ (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OVERALL CAO = 0 V, VAO = 0 V, Supply current, off 250 400 µA VCC = VUVLO–0.3 V Supply current, on 12 18 mA UCx854A 15.0 16.0 17.5 VCC turn-on threshold voltage UCx854B 8.0 10.5 11.2 UCx854A 9 10 12 VCC turn-off threshold voltage UCx854B 7.8 10.3 11.0 V UCx854A 5 6 7 VCC hysteresis UCx854B 0.10 0.22 0.50 VCC clamp IVCC = IVCC(on) + 5 mA 18 20 22 VOLTAGE AMPLIFIER Input voltage 2.9 3.0 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 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 VCM = 0 V, TA = 25°C –4 0 Input offset voltage mV VCM = 0 V, Overtemperature –5.5 0 ISENSE Input bias current 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 ISC Output short-circuit current VOUT = 0 V 1.5 3.5 mA CMRR Common mode rejection range –0.3 5.0 V Gain bandwidth product(1) fIN = 100 kHz, 10 mVp-p 3 5 MHz REFERENCE IREF = 0 mA, TA = 25°C 7.4 7.5 7.6 Output voltage V IREF = 0 mA 7.35 7.50 7.65 Load regulation 1 mA ≤ IREF ≤ 10 mA 0 8 20 mV Line regulation 12 V ≤ VCC ≤ 18 V 0 14 25 ISC Short circuit current VREF = 0 V 25 35 60 mA (1) Ensured by design. Not production tested. 4 Submit Documentation Feedback Copyright © 2003–2008, Texas Instruments Incorporated Product Folder Link(s): UC1854A UC2854A, UC2854B UC3854A, UC3854B |
Аналогичный номер детали - UC2854ADWTR |
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Аналогичное описание - UC2854ADWTR |
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