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UCC28050DTIN/a25avaiTransition Mode PFC Controller
UCC28050PTIN/a1492avaiTransition Mode PFC Controller


UCC28050P ,Transition Mode PFC Controller SLUS515G–SEPTEMBER 2002–REVISED DECEMBER 20155 Pin Configuration and FunctionsD or P Package8-Pin ..
UCC28051 ,PFC Controller for low to medium power applications requiring compliance with IEC 1000-3-2Maximum Ratings(1)over operating free-air temperature range (unless otherwise noted)MIN MAX UNITSup ..
UCC28051D ,PFC Controller for low to medium power applications requiring compliance with IEC 1000-3-2features such as peak current limit, default timer,• Lead (Pb)-Free Packagesovervoltage protection ..
UCC28051DG4 ,PFC Controller for low to medium power applications requiring compliance with IEC 61000-3-2 8-SOIC -40 to 105Features... 18 Application and Implementation...... 162 Applications..... 18.1 Application Informat ..
UCC28051DR ,PFC Controller for low to medium power applications requiring compliance with IEC 1000-3-2Electrical Characteristics....... 511.3 Community Resources...... 236.6 Typical Characteristics. 71 ..
UCC28051DR ,PFC Controller for low to medium power applications requiring compliance with IEC 1000-3-2Maximum Ratings.. 410.2 Layout Example....... 226.2 ESD Ratings........ 411 Device and Documentatio ..
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UPA102G-E1 ,Ultra-high-frequency NPN transistor arrayFEATURES• TWO BUILT-IN DIFFERENTIAL AMPLIFIER CIRCUITS: (Each Transistor has fT 9 GHz)• OUTSTANDING ..


UCC28050D-UCC28050P
Transition Mode PFC Controller
VCC
DRV
GND
ZCD
VO_SNS
COMP
MULTIN
UCC38050

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Regulation totem-pole driverfor drivingan external FET. Two UVLO Options In the transition mode operation, the PWM circuitis OVP, Open-Feedback Protection, and Enable self-oscillating, with the turnon being governedby an
inductor zero-current detector (ZCD pin), and theCircuits
turnoff being governed by the current-sense• ±750-mA Peak Gate Drive Current comparator. Additionally, the controller provides• Low Start-Up and Operating Currents features such as peak current limit, default timer, Lead (Pb)-Free Packages overvoltage protection (OVP) and enable.
Device Information(1)2 Applications
• Single-Stage PFC Flyback Converters for Lightingand Motor Drives• Switch-Mode Power Supplies for Desktops,Monitors, TVs, and Set Top Boxes (STBs)
(1) Forall available packages, see the orderable addendumat• AC Adapter Front-End Power Supplies
the endofthe data sheet.• Electronic Ballasts
Simplified Application Diagram
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