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reference designUCC28740DR | Demoboard PMP20001

Texas Instruments UCC28740DR | Demoboard PMP20001

Flyback Reference Design with High Line AC Input and 5V, 12V Dual-Output

Overview

TopologyFlyback Converter
Input voltage185-260 V
Output 112 V / 0.9 A
IC revisionA

Description

The PMP11405 reference design uses the UCC28740 constant current (CC), constant voltage (CV) flyback controller for a 5V/1A, 12V/0.9A bias supply with high line AC input (185VAC to 260VAC input). With safety isolated, Over 80% efficiency is achieved at full load and less than 400mW power consumption is observed during no load condition

Features

REMARK: BOM AND SCHEMATIC PDF S ADDEDHigh line AC input to 5V/1A and 12V/0.9A dual-output1.45" x 4.45" board dimensionCC & CV is enabled with UCC28740 flyback controllerLess than 400mW no load power consumptionCross regulation tested

More information

Parts approved by Texas Instruments

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Order Code
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Product series
Application
C
Safety Class
dV/dt(V/µs)
DF @ 1 kHz(%)
RISO
Pitch(mm)
Packaging
Tol. C
Size
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DF(%)
Ceramic Type
Fl(mm)
ISAT,10%(A)
fres(MHz)
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IR(A)
L(mH)
RDC max.(mΩ)
VR(V (AC))
VT(V (AC))
Material
L(mm)
W(mm)
H(mm)
Mount
SamplesAvailability & Sample
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890324024003
SPECWCAP-FTX2 Film Capacitors, Across the mains, 330 nF
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-FTX2 Film Capacitors
ApplicationAcross the mains 
Capacitance330 nF
Safety ClassX2 
Rate of Voltage Rise260 V/µs
Dissipation Factor0.1 %
Insulation Resistance30 GΩ
Pitch12.5 mm
PackagingBulk 
Capacitance±10% 
SizePitch: 12.5 mm 
Operating Temperature -40 °C up to +105 °C
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Rated Voltage275 V (AC)
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Length15 mm
Width8.5 mm
Height14 mm
MountBoxed THT 
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744821240
SPECWE-CMB Common Mode Power Line Choke, –, –
Simu­lation
Availability
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Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-CMB Common Mode Power Line Choke
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SizeXS 
Operating Temperature -40 °C up to +125 °C
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VersionTHT 
Rated Current1.5 A
Inductance4 mH
DC Resistance140 mΩ
Rated Voltage250 V (AC)
Insulation Test Voltage1500 V (AC)
MaterialMnZn 
Length15.8 mm
Width7.8 mm
Height18 mm
MountTHT 
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7447462101
SPECWE-TI Radial Leaded Wire Wound Inductor, –, –
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-TI Radial Leaded Wire Wound Inductor
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Size5075 
Operating Temperature -40 °C up to +125 °C
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Saturation Current @ 10%0.8 A
Self Resonant Frequency7.1 MHz
VersionHeat Shrinking Tube 
Rated Current0.8 A
Inductance0.1 mH
DC Resistance650 mΩ
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MaterialNiZn 
Length6 mm
Width6 mm
Height8.5 mm
MountTHT 
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885012206091
SPECWCAP-CSGP MLCCs 50 V(DC), –, 22 nF
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
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Capacitance22 nF
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Insulation Resistance10 GΩ
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Packaging7" Tape & Reel 
Capacitance±10% 
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor2.5 %
Ceramic TypeX7R Class II 
Pad Dimension0.4 mm
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Rated Voltage50 V (AC)
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Length1.6 mm
Width0.8 mm
Height0.8 mm
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750316002
SPECFlyback Transformer, –, –
Simu­lation
Availability
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Downloads4 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product series Flyback Transformer
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PackagingTray 
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SizeEE20/10/6 
Operating Temperature -40 °C up to +125 °C
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Inductance0.85 mH
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Insulation Test Voltage3750 V (AC)
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Length22.2 mm
Width25 mm
Height16 mm
MountTHT 
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