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reference designUCC28780 | Demoboard PMP30631

Texas Instruments UCC28780 | Demoboard PMP30631

Overview

TopologyFlyback Converter
Input voltage90-264 V
IC revisionB

Description

This reference design uses the UCC28780 active clamp flyback controller to generate an isolated output of 20 V @ 3.5 A over an input voltage rage of 90 Vac to 264 Vac. The design also uses the UCC24612 synchronous rectifier controller on the secondary side. Zero voltage switching (ZVS) ensures high efficiency over a wide operating range.

Features

  • Zero voltage switching (ZVS) provides high efficiency (93% peak value)
  • Adaptive burst mode feature maintains high efficiency even at light loads
  • Synchronous rectifier using drain-to-source voltage sensing

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
ISAT,10%(A)
fres(MHz)
Version
IR(A)
L(µH)
RDC max.(Ω)
VR(V (AC))
VT(V (AC))
Material
L(mm)
W(mm)
H(mm)
Mount
SamplesAvailability & Sample
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744732100
SPECWE-TI Radial Leaded Wire Wound Inductor, 4.7 A, 27 MHz
Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TI Radial Leaded Wire Wound Inductor
Saturation Current @ 10%4.7 A
Self Resonant Frequency27 MHz
VersionHeat Shrinking Tube 
Rated Current4 A
Inductance10 µH
DC Resistance0.033 Ω
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–
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Length9.5 mm
Width9.5 mm
Height8 mm
MountTHT 
–Check availability
7447462010
SPECWE-TI Radial Leaded Wire Wound Inductor, 8.5 A, 140 MHz
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TI Radial Leaded Wire Wound Inductor
Saturation Current @ 10%8.5 A
Self Resonant Frequency140 MHz
VersionHeat Shrinking Tube 
Rated Current8.5 A
Inductance1 µH
DC Resistance0.015 Ω
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–
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Length6 mm
Width6 mm
Height8.5 mm
MountTHT 
–Check availability
744823220
SPECWE-CMB Common Mode Power Line Choke, –, –
Simu­lation
Availability
–
Downloads11 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CMB Common Mode Power Line Choke
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VersionTHT 
Rated Current1.5 A
Inductance20000 µH
DC Resistance0.27 Ω
Rated Voltage250 V (AC)
Insulation Test Voltage1500 V (AC)
MaterialMnZn 
Length23 mm
Width13.8 mm
Height25.5 mm
MountTHT 
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750318431
SPECOffline Transformer, –, –
Simu­lation
Availability
–
Downloads3 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product series Offline Transformer
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Inductance120 µH
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Insulation Test Voltage3000 V (AC)
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Length27.05 mm
Width32.25 mm
Height22.86 mm
MountTHT 
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