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UCC28056CDBVT Datasheet(PDF) 1 Page - Texas Instruments |
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UCC28056CDBVT Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 53 page  VOSNS ZDC/CS UCC28056 VCC COMP DRV GND CC0 CC01 RC0 RDG RZC1 ROS2 ROS1 COut RCS VOUT Bus Bus GND DBST LBST CCC RZC2 CIn VCC Copyright © 2018, Texas Instruments Incorporated Line Voltage (VRMS) 20 80 120 240 280 200 160 25 30 35 40 45 50 Product Folder Order Now Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. UCC28056 SLUSD37C – OCTOBER 2017 – REVISED FEBRUARY 2018 UCC28056 6-Pin Single-Phase Transition-Mode PFC Controller 1 1 Features 1 • Low Input Current Distortion and Near Unity Power Factor Down to 10% Load – Enables Compliance to IEC1000-3-2 • Ultra-low No-load Input Power (25 mW at 115 Vac, 40 mW at 230 Vac) • Excellent Efficiency Over Range Of Load • Enables <60mW Standby Power at 115Vac and <80mW Standby Power at 230 Vac in PFC+LLC System • Enables Compliance To Green Power Standards Without Disabling PFC – EuP Lot 6 Tier 2, CoC Ver. 5 Tier 2, Energy Star for computers Ver. 6.1, DOE Level VI • Ultra-low Audible Noise Output • Burst Mode With Soft-entry and Soft-exit Periods • Enhanced EA, Responds Rapidly to Load Steps Without Degrading Input Current Distortion • Valley Synchronized Turn-on Requires No Second Winding On The Boost Inductor • User Adjustable Valley Delay • Low Start-up Current Consumption (<46 µA) • Wide VCC Range 8.5 V to 34 V • Cycle-by-cycle Current Limit • Second Independent Output Voltage Protection • Integrated Over-temperature Protection • Create a Custom Design Using the UCC28056 Device With the WEBENCH® Power Designer 2 Applications • Desktop Computing / Digital TV • Gaming / Set Top Box / AC Adapter Front End • LED Drivers and Luminaries • Entry-Level Server and Web Server 3 Description The UCC28056 device drives PFC boost stages based on an innovative mixed mode method that operates in Transition mode (TM ) at full load and transitions seamlessly into Discontinuous Conduction mode (DCM) at reduced load, automatically reducing switching frequency. This device incorporates burst mode operation to further improve light load performance, enabling systems to meet challenging energy standards while eliminating the need to switch off the PFC. UCC28056 can drive a PFC power stage up to 300 W, ensuring sinusoidal line input current with low distortion, close to unity power factor while keeping the PFC ‘always on’. When used with the LLC controller UCC256301, this 6-pin device eliminates the need for an auxiliary fly back converter, (typically needed in systems for good standby performance) while achieving less than 80 mW at 230 Vac. The device also enables instant turn on while reducing external component count to a minimum. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) UCC28056 SOT-23(6) 2.90 mm x 1.6 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Standby Power Simplified Application |
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Similar Description - UCC28056CDBVT |
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