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reference designUCC28742 | Demoboard PMP31193

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

More information

Products

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Data­sheet
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Status
Product series
L(µH)
IR(A)
ISAT(A)
RDC max.(mΩ)
fres(MHz)
Mount
C
VR(V (DC))
Endurance(h)
IRIPPLE(mA)
ILeak(µA)
DF(%)
Pitch(mm)
Ø D(mm)
L(mm)
Packaging
SamplesAvailability & Sample
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7447471222
SPECWE-TIS Radial Leaded Wire Wound Inductor, 2200 µH, 0.31 A
Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TIS Radial Leaded Wire Wound Inductor
Inductance2200 µH
Rated Current0.31 A
Saturation Current0.46 A
DC Resistance5700 mΩ
Self Resonant Frequency0.74 MHz
MountTHT 
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Length11 mm
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860020575014
SPECWCAP-ATG5 Aluminum Electrolytic Capacitors, –, –
Simu­lation
Availability
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Downloads8 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-ATG5 Aluminum Electrolytic Capacitors
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Capacitance470 µF
Rated Voltage35 V (DC)
Endurance 2000
Ripple Current520 mA
Leakage Current164.5 µA
Dissipation Factor12 %
Pitch5 mm
Diameter10 mm
Length16 mm
PackagingAmmopack 
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860160575025
SPECWCAP-ATLL Aluminum Electrolytic Capacitors, –, –
Simu­lation
Availability
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Downloads8 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-ATLL Aluminum Electrolytic Capacitors
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Capacitance470 µF
Rated Voltage35 V (DC)
Endurance 6000
Ripple Current1302 mA
Leakage Current164.5 µA
Dissipation Factor12 %
Pitch5 mm
Diameter10 mm
Length20 mm
PackagingAmmopack 
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