IC manufacturers Analog Devices

IC manufacturers (103)

Analog Devices LT4295

IEEE 802.3bt PD Interface with Forward/Flyback Controller

Overview

TopologyFlyback Converter
Input voltage9-57 V
Switching frequency214-300 kHz
Output 112 V / 1.9 A

Description

The LT®4295 is an IEEE 802.3af/at/bt(Draft 2.0)-compliantpowered device (PD) interface controller with aswitching regulator controller. The T2P output indicatesthe number of classification events received during IEEE802.3bt-compliant mutual identification and negotiationof available power.

Features

IEEE 802.3af/at/bt(Draft 2.0) Powered Device (PD)with Forward/Flyback Controllern Supports Up to 71 Watt PDsn 5-Event Classification Sensingn Superior Surge Protection (100V Absolute Maximum)n Wide Junction Temperature Range (–40°C to 125°C)n >94% End-to-End Efficiency with LT4321 Ideal Bridgen External Hot Swap N-Channel MOSFET for LowestPower Dissipation and Highest System Efficiencyn No-Opto Flyback Operationn Auxiliary Power Support as Low as 9Vn Easy Migration of LTPoE++® PDs to IEEE 802.3bt PDsn Pin Compatible with LT4276A/B/Cn 28-Lead 4mm × 5mm QFN Package

Typical applications

  • Outdoor Security Camera Equipment
  • Commercial and Public Information Displays
  • High Power Wireless Data Systems
  • High Temperature Applications

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
Material
LR(µH)
fres(MHz)
Version
VIN
VOut1(V)
IOut1(A)
L(µH)
n
VT(V (AC))
Size
Mount
SamplesAvailability & Sample
SPECWE-HCC SMT High Current Cube Inductor, 8.9 A, 9.3 A
Simu­lation
Availability
Status Activei| Production is active. Expected lifetime: >10 years.
Performance Rated Current8.9 A
Saturation Current @ 10%9.3 A
Saturation Current @ 30%12.5 A
DC Resistance15 mΩ
MaterialFerrite 
Rated Inductance2.8 µH
Self Resonant Frequency36 MHz
VersionSMT 
Inductance8.2 µH
Size1090 
MountSMT 
Check availability
SPECWE-PoE Power over Ethernet Transformer, –, –
Simu­lation
Availability
Status Activei| Production is active. Expected lifetime: >10 years.
VersionFlyback 
Input Voltage 9 - 57 V (DC)
Output Voltage 112 V
Output Current 12 A
Inductance9 µH
Turns Ratio1:1.12:1 
Insulation Test Voltage1500 V (AC)
SizeEFD20 
MountSMT 
Check availability