IC reference design search
IC manufacturers Analog Devices

IC manufacturers (103)

reference designLT8306 | Demoboard AD-PS3803-RD

Analog Devices LT8306 | Demoboard AD-PS3803-RD

PoE+ with Ideal Diode Bridge to Isolated Flyback DC/DC (12V, 2A)

Overview

TopologyLAN / POE
Input voltage37-57 V
Output 112 V / 2 A
IC revision1

Description

The AD-PS3803-RD reference design is a power converter capable of harnessing any IEEE802.3at (PoE+, Type 2) compliant downstream Power-Over-Ethernet (PoE) supply to provide a galvanically isolated DC power.At the core of this solution is the LT8306 60V No-Opto Flyback controller, stepping down the 37V to 57V PoE input voltage to a 12V, 24W DC output.The on-board LT4275 LTPoE++/PoE+/PoE power delivery (PD) controller handles interfacing and power delivery to any PoE supply.

Features

  • Galvanically isolated 12V flyback DC output with up to 24 W of output power capability
  • No Transformer third winding or Opto-Isolator for output regulation
  • Supports IEEE802.3at (PoE+, Type 2) and IEEE802.3bt (PoE++, Type 3 and 4) interfacing and power supply control via a configurable jumper array
  • Supports a wide input DC auxiliary power of 37V to 57V

Typical applications

  • Isolated Telecom, Automotive, Industrial, Medical Power Supplies, Isolated Auxiliary/Housekeeping Power Supplies

More information

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
C
Tol. C
VR(V (DC))
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
Version
VIN
VOut1(V)
IOut1(A)
L(µH)
n
VT(V)
Size
Vaux(V)
RDC 1(Ω)
RDC 2(Ω)
RDC 3(Ω)
Mount
Data rate
Ports
PoE
Improved CMRR
Operating Temperature
SamplesAvailability & Sample
885012207115
SPECWCAP-CSGP MLCCs 100 V(DC), 680 pF, ±10%
Simu­lation
Availability
–
Downloads7 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 7 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 100 V(DC)
Capacitance680 pF
Capacitance±10% 
Rated Voltage100 V (DC)
Dissipation Factor2.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length2 mm
Width1.25 mm
Height0.8 mm
Pad Dimension0.5 mm
Packaging7" Tape & Reel 
–
–
–
–
–
–
–
Size0805 
–
–
–
–
–
–
–
–
–
Operating Temperature -55 °C up to +125 °C
–Check availability
750316116
SPECWE-PoE+ Power over Ethernet Plus Transformer, –, –
Simu­lation
Availability
–
Downloads8 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 8 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PoE+ Power over Ethernet Plus Transformer
–
–
–
–
–
–
Length23.11 mm
Width29.65 mm
Height11.43 mm
–
PackagingTape and Reel 
VersionFlyback 
Input Voltage 41 - 57 V (DC)
Output Voltage 112 V
Output Current 14 A
Inductance18 µH
Turns Ratio2:1:1 
Insulation Test Voltage1500 V
SizeEFD20 
Auxiliary Voltage12 V
DC Resistance 10.02 Ω
DC Resistance 20.011 Ω
DC Resistance 30.066 Ω
MountSMT 
–
–
–
–
Operating Temperature -40 °C up to +125 °C
–Check availability
7490220122
SPECWE-LAN LAN Transformer, –, –
Simu­lation
Availability
–
Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LAN LAN Transformer
–
–
–
–
–
–
Length17.55 mm
Width16 mm
Height98.8 mm
Pad Dimension13.97 mm
–
VersionSMT 
–
–
–
Inductance350 µH
Turns Ratio1:1 
Insulation Test Voltage1500 V
–
–
–
–
–
MountSMT 
Data rate10/100/1000BASE-T 
Ports1 
PoE4PPoE (up to 1000 mA) 
Improved Common Mode RejectionNo 
Operating Temperature -40 °C up to +105 °C
–Check availability