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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UCC28056ADBVT датащи(PDF) 4 Page - Texas Instruments |
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UCC28056ADBVT датащи(HTML) 4 Page - Texas Instruments |
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4 / 55 page  4 UCC28056 SLUSD37E – OCTOBER 2017 – REVISED NOVEMBER 2019 www.ti.com Product Folder Links: UCC28056 Submit Documentation Feedback Copyright © 2017–2019, Texas Instruments Incorporated 5 Device Comparison Tables DEVICE UCC28056 UCC28056A UCC28056B UCC28056C Target Applications Not recommended for new design PFC Bus output >400VDC Improved audible noise performance Drop in replacement for UCC28056 OVP2 FEATURE INCLUDED YES NO YES YES OVP1 THRESHOLD 110% Vout 108% Vout 110% Vout 110% Vout BURST MODE THRESHOLD < 10% Load < 15% Load < 15% Load < 10% Load ZCD NOISE IMMUNITY Basic noise immunity Improved noise immunity Improved noise immunity Improved noise immunity The enhanced noise immunity of UCC28056A, UCC28056B, and UCC28056C provides system robustness advantages and less sensitivity to PCB layout than the UCC28056. For more information on the system level benefits that UCC28056A, UCC28056B and UCC28056C provide, please see UCC28056X Selection Guide SLUA974. PARAMETER DEVICE MIN TYP MAX UNIT Output Over Voltage Protection VOSOvp1Rise VOSNS over-voltage threshold, rising, VCC = 12 V UCC28056A 2.64 2.7 2.76 V UCC28056 2.69 2.75 2.81 UCC28056B UCC28056C VOSOvp1Fall VOSNS over-voltage threshold, falling, VCC = 12 V UCC28056A 2.55 2.625 2.68 V UCC28056 2.60 2.675 2.73 UCC28056B UCC28056C VOSOvp1Hyst VOSOovp1Rise - VOSOovp1Fall All 0.072 V TOvp2Blk Ovp2 Comparator output is blanked for this period after falling edge of DRV UCC28056A Not Applicable UCC28056 520 620 720 ns UCC28056B UCC28056C TOvp2bEn Ovp2b fault is detected if ZCD is detected during this period after falling edge of Ovp2 Comparator output UCC28056A Not Applicable UCC28056 620 720 820 ns UCC28056B UCC28056C VOvp2Th Second level output over-voltage fault Threshold UCC28056A Not Applicable UCC28056 1.102 1.125 1.148 ns UCC28056B UCC28056C Burst Mode Operation VBSTFall VCOMP Burst Threshold Falling UCC28056 0.5 V UCC28056C UCC28056A 0.75 UCC28056B VBSTRise VCOMP Burst Threshold Rising UCC28056 0.625 UCC28056C UCC28056A 0.875 UCC28056B |
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