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reference designUCC28880 | Demoboard PMP10175

Texas Instruments UCC28880 | Demoboard PMP10175

Universal AC Input, 5V/500mA DC output, Non-isolated Flyback Converter Reference Design

Overview

TopologyFlyback Converter
Input voltage90-275 V
Output 15 V / 0.5 A
IC revisionA

Description

This design demonstrates the use of UCC28880 high-voltage switcher to design an Offline Non-Isolated Flyback converter that can supply greater than 100mA output current. Using direct resistor-divider feedback, this design delivers a well-regulated 5V/500mA output with minimal component count.

Features

  • UCC28880 based Non-Isolated Flyback converter
  • Design delivers >100mA output current
  • 5V output, regulated by direct resistor divider feedback network

  • 77% efficiency at 2.5W/5V/500mA

  • Tightly regulated 5V output (<1.5%, at 25C) using direct resistor divider feedback
  • Short-circuit withstand capability of 3 seconds
  • This design is tested and includes test results and CAD files

Remarks:L1=1mH And Transormer T1 Used

More information

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L(µH)
IR(A)
ISAT,10%(A)
RDC max.(Ω)
fres(MHz)
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7447462102
SPECWE-TI Radial Leaded Wire Wound Inductor, 1000 µH, 0.25 A
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
Inductance1000 µH
Rated Current0.25 A
Saturation Current @ 10%0.27 A
DC Resistance6 Ω
Self Resonant Frequency2.3 MHz
VersionHeat Shrinking Tube 
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750315313
SPECOffline Transformer, 10000 µH, –
Simu­lation
Availability
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Downloads4 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product series Offline Transformer
Inductance10000 µH
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–
–
–
–
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750315314
SPECOffline Transformer, 10000 µH, –
Simu­lation
Availability
–
Downloads4 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product series Offline Transformer
Inductance10000 µH
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–
–
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–Check availability