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reference designLM5022 | Demoboard PMP20551

Texas Instruments LM5022 | Demoboard PMP20551

12V to 60V Input 36W Industrial PoE Isolated Flyback Reference Design

Overview

TopologyFlyback Converter
Input voltage36-72 V
Output 112 V / 2.5 A

Description

PMP20551 is an isolated flyback converter utilizing the LM5022 for industrial applications. This design accepts PoE input voltage of 12V to 60V The test report here is tested at 12V out @ 3A of load current. Switching frequency is set to 100kHz. A custom transformer is used in this test report for all the scope capture.

Features

  • 12V to 60V input, 12Vout @ 3A out - IC capable of 6V to 60Vin
  • 36W isolated output
  • Peak efficiency 92%
  • Wide input operating range
  • Secondary soft start

More information

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VIN
VOut1(V)
IOut1(A)
Vaux(V)
L(µH)
n
ISAT(A)
LS(nH)
VT(V (AC))
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750316708
SPECWE-FLYTI Flyback Transformers, 12 - 60 V (DC), 12 V
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-FLYTI Flyback Transformers
Input Voltage 12 - 60 V (DC)
Output Voltage 112 V
Output Current 13 A
Auxiliary Voltage12 V
Inductance42 µH
Turns Ratio3:1:1 
Saturation Current7 A
Leakage Inductance750 nH
Insulation Test Voltage1000 V (AC)
SizeEFD25 
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