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IC manufacturers Monolithic Power Systems

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reference designMP8004 | Demoboard EV8004-QW-00A

Monolithic Power Systems MP8004 | Demoboard EV8004-QW-00A

13W 802.3af PoE Powered Device Interface with Flyback DC-DC Converter EV Board

Overview

TopologyFlyback Converter
Input voltage36-57 V
Output 112 V / 1 A
IC revision1.0

Description

The MP8004 is an integrated IEEE 802.3af PoEcompliant Powered Device (PD) power supplysolution. It includes a PD interface and anisolated/non-isolated flyback converter.The PD interface includes detection andclassification modes as well as a 100V outputpass device. Inrush current limit is included toslowly charge the input capacitor.The DC-DC converter includes a 150V powerswitch and is capable of delivering 13W outputpower with high efficiency. It has an internalsoft-start, auto-retry, over current, short circuit,and over voltage protection. It can also skipcycles during light load condition.The MP8004 is available in thermally enhanced4x6mm QFN20 package.

Features

Meets IEEE 802.3af Specifications

  • 100V, 1Ω Integrated Pass Switch
  • 420mA DC Input Current Limit
  • 150V, 0.45Ω Integrated Switch for PowerConverter
  • Cycle-by-Cycle Switching Current Limit
  • Integrated 100V Startup Circuit
  • Programmable Switching Frequency
  • Duty Cycle Limiting with Line Feed Forward
  • Internal Slope Compensation
  • OCP, SCP and OTP Protection
  • 4x6mm QFN20 Package

Typical applications

  • Small-cell Base Stations
  • Security Camera Systems
  • VoIP Telephones
  • Safety Backup Power
  • Remote Internet Power
  • Wireless Access Points/Wireless LAN

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
VIN
VOut1(V)
IOut1(A)
Vaux(V)
L(µH)
n
ISAT(A)
LS(µH)
VT(V (AC))
Size
IC Reference
Data rate
Ports
PoE
Improved CMRR
Operating Temperature
Mount
SamplesAvailability & Sample
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750311424
SPECWE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748, 36 V (DC), 12 V
Simu­lation
Availability
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Downloads8 files

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CAD files ZIP

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ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748
Input Voltage 36 V (DC)
Output Voltage 112 V
Output Current 11 A
Auxiliary Voltage8 V
Inductance100 µH
Turns Ratio3:1:0.667 
Saturation Current2.4 A
Leakage Inductance1.5 µH
Insulation Test Voltage1500 V (AC)
SizeEP13 
IC ReferenceLT3748 
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Operating Temperature -40 °C up to +125 °C
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–Check availability
749020011A
SPECWE-LAN LAN Transformer, –, –
Simu­lation
Availability
–
Downloads10 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 10 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LAN LAN Transformer
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Inductance350 µH
Turns Ratio1:1 
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Insulation Test Voltage1500 V (AC)
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Data rate1000 Base-T 
Ports1 
PoEnon-PoE 
Improved Common Mode RejectionYes 
Operating Temperature -40 °C up to +85 °C
MountSMT 
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