UCC28056

Product Folder Order Now Technical Documents Tools & Software Support & Community UCC28056 SLUSD37D – OCTOBER 2017 – REVISED JULY 2019 UCC28056 6-Pin Single-Phase Transition-Mode PFC Controller 1 Features 1 Ultra-low no-load input power enables < 80-mW standby power at 230 VAC in PFC+LLC system Excellent light load efficiency and high efficiency over wide range of load due to multi-mode TM and DCM control Enables low system cost through FET Drain valley synchronized turn-on which eliminates need for second winding on the boost inductor Enables compliance to green power standards without disabling PFC – EuP Lot 6 Tier 2, CoC Ver. 5 Tier 2, Energy Star Ver. 6.1, DoE Level VI Burst mode with soft-entry and soft-exit periods enables ultra-low audible noise output Enhanced Error Amplifier, responds rapidly to load steps without degrading input current distortion User adjustable valley delay ensures valley switching Low start-up current consumption (<46 µA) Wide VCC range 8.5 V to 34 V Cycle-by-cycle current limit Second independent output over-voltage protection Integrated over-temperature protection Create a custom design using the UCC28056 device with the WEBENCH® Power Designer 2 Applications Desktop computing and Digital TV Gaming, Set top box and AC adapter front end LED drivers and luminaries Inductrial and Medical Power Supplies, E-bike Chargers, Power Tools Chargers 3 Description The UCC28056 device drives PFC boost stages based on a...