IC manufacturers Texas Instruments

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Texas Instruments UCC28742 | Demoboard UCC28742EVM-001

Using the UCC28742EVM-001 10-W Converter User's Guide

Overview

TopologyFlyback Converter
Input voltage85-265 V
Switching frequency80-130 kHz
Output 15 V / 2 A
IC revisionB

Description

The UCC28742EVM-001 is a 10-W evaluation module for evaluating an off-line power converter applications. The EVM meets CoC tier 2 and DoE Level 6 efficiency and standby power requirements. It is intended for evaluation purposes and is not intended to be an end product. The UCC28742EVM-001 converters 85-VRMS to 265-VRMS input voltage down to 5-VDC, with a 2.1-A current limit.

Features

  • Opto-Coupled Feedback Enables up to 1% Regulation
  • Accurate Current Limit with Overload Timeout Protection and Delayed Hiccup Response Resonant-Ring Valley-Switching Operation for Highest Overall Efficiency
  • 80-kHz Maximum Switching Frequency
  • Frequency Dithering to Ease EMI Compliance
  • Clamped Gate-Drive Output for MOSFET
  • Ultra-Low Start-Up Current and Large VDD Hysteresis
  • High Value Start-Up Resistor
  • Low Bias Capacitance
  • Fault Protections
  • Input Low Line
  • Output Over-Voltage
  • Over-Current
  • Short-Circuit
  • SOT23-6 Package
  • Create a Custom Design Using the UCC28742 with the WEBENCH® Power Designer

Typical applications

  • Smart Electricity Meters
  • Industrial and Medical AC-to-DC Power Supplies/ Bias Supply for UPS, Server PSU, etc./ Power Supply for Cable Modem, Television, Set-Top Box, and Wireless Routers/ AC-to-DC Power Supply for Appliances

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesZ @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(Ω)
Type Samples
742792121SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-CBF SMT EMI Suppression Ferrite Bead 300 330 110 MHz 3000 0.06 High Current
750315841SPEC
4 files Active i| Production is active. Expected lifetime: >10 years. Transformer
Order Code Data­sheet Simu­lation
742792121SPEC
750315841SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesZ @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(Ω)
Type Samples