IC reference design search
IC manufacturers Texas Instruments

IC manufacturers (108)

reference designUCC28050 | Demoboard PMP11155

Texas Instruments UCC28050 | Demoboard PMP11155

Transition mode PFC controller with 15.6V/9.7V UVLO and IEC61000-3-2 compliance 0°C to 70°C

Overview

TopologyPower Factor Correction
Input voltage90-265 V
Output 124 V / 1 A
IC revisionC

Description

The UCC38050 and UCC38051 are PFC controllers for low-to-medium power applications requiring compliance with IEC 1000-3-2 harmonic reduction standard. The controllers are designed for a boost preregulator operating in transition mode (also referred to as boundary-conduction mode or critical conduction-mode operation). They feature a transconductance voltage amplifier for feedback error processing, a simple multiplier for generating a current command proportional to the input voltage, a current-sense (PWM) comparator, PWM logic, and a totem-pole driver for driving an external FET.In the transition mode operation, the PWM circuit is self-oscillating, with the turnon being governed by an inductor zero-current detector (ZCD pin), and the turnoff being governed by the current-sense comparator. Additionally, the controller provides features such as peak current limit, default timer, overvoltage protection (OVP) and enable.

Features

  • Transition Mode PFC Controller for Low Implementation Cost
  • Industry Pin Compatibility With Improved Feature Set
  • Improved Transient Response With Slew-Rate Comparator
  • Zero Power Detect to Prevent Overvoltage Protection (OVP) During Light Load Conditions
  • Accurate Internal VREF for Tight Output Regulation
  • Two UVLO Options
  • OVP, Open-Feedback Protection, and Enable Circuits
  • ±750-mA Peak Gate Drive Current
  • Low Start-Up and Operating Currents
  • Lead (Pb)-Free Packages

Typical applications

  • Single-Stage PFC Flyback Converters for Lighting and Motor Drives, AC Adapter Front-End Power Supplies, Electronic Ballasts
  • Switch-Mode Power Supplies for Desktops, Monitors, TVs, and Set Top Boxes (STBs)

More information

Parts approved by Texas Instruments

Log in now to view availability and request availability forecasts. LOGIN
Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
Application
C
VR(V (AC))
Safety Class
dV/dt(V/µs)
DF @ 1 kHz(%)
RISO
Pitch(mm)
L(mm)
W(mm)
H(mm)
Packaging
L(µH)
IRP,40K(A)
ISAT(A)
RDC max.(mΩ)
fres(MHz)
Size
Version
SamplesAvailability & Sample
Log in now to view availability and request availability forecasts. LOGIN
890334025039CS
SPECWCAP-FTXX Film Capacitors, Across the mains, 470 nF
Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-FTXX Film Capacitors
ApplicationAcross the mains 
Capacitance470 nF
Rated Voltage310 V (AC)
Safety ClassX2 
Rate of Voltage Rise220 V/µs
Dissipation Factor0.1 %
Insulation Resistance21.28 GΩ
Pitch15 mm
Length18 mm
Width8 mm
Height14 mm
PackagingCarton 
–
–
–
–
–
SizePitch: 15 mm 
–
–Check availability
74477124
SPECWE-PD SMT Power Inductor, –, –
Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
–
–
–
–
–
–
–
–
Length12 mm
Width12 mm
Height6 mm
–
Inductance470 µH
Performance Rated Current1.25 A
Saturation Current0.8 A
DC Resistance710 mΩ
Self Resonant Frequency2.6 MHz
Size1260 
VersionStandard 
–Check availability