IC manufacturers Texas Instruments

IC manufacturers (103)

Texas Instruments UCC28742 | Demoboard PMP31193

3-Phase Input Valley Switching Flyback With Two Outputs Reference Design

Overview

TopologyFlyback Converter
Input voltage332-459 V
Output 123 V / 1 A
IC revision1

Description

This reference design uses the UCC28742 flyback controller to generate two outputs (23 V at 1.0 A, 5.0 V at 0.15 A) from a 3-phase input. The UCC28742 uses an optical coupler to regulate the output and to improve transient response. The valley-switching technique reduces switching losses and keeps the efficiency high

Typical applications

  • water heater

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(mΩ)
fres
(MHz)
MountCVR
(V (DC))
Endurance
(h)
Operating TemperatureIRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Pitch
(mm)
Ø D
(mm)
L
(mm)
Packaging Samples
7447471222SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WE-TIS Radial Leaded Wire Wound Inductor 2200 0.31 0.46 5700 0.74 THT -40 °C up to +125 °C 11
860020575014SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATG5 Aluminum Electrolytic Capacitors470 µF 35 2000 -40 °C up to +105 °C 520 164.5 12 5 10 16 Ammopack
860160575025SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATLL Aluminum Electrolytic Capacitors470 µF 35 6000 -55 °C up to +105 °C 1302 164.5 12 5 10 20 Ammopack
Order Code Data­sheet Simu­lation
7447471222SPEC
860020575014SPEC
860160575025SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(mΩ)
fres
(MHz)
MountCVR
(V (DC))
Endurance
(h)
Operating TemperatureIRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Pitch
(mm)
Ø D
(mm)
L
(mm)
Packaging Samples