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LINEAR TECHNOLOGY  LTC4263IDE#PBF  Power Over Ethernet (POE) Controller, 48 V/1 mA, 110 Hz Switch/Clock, 31V UVLO Threshold, DFN-14

LINEAR TECHNOLOGY LTC4263IDE#PBF
LINEAR TECHNOLOGY LTC4263IDE#PBF
Manufacturer Part No:
LTC4263IDE#PBF
Order Code:
2295352
Technical Datasheet:
See all Technical Docs
LINEAR TECHNOLOGY LTC4263IDE#PBF
LINEAR TECHNOLOGY LTC4263IDE#PBF

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LTC4263IDE#PBF is a 1-channel autonomous PSE Controller with internal switch for use in IEEE 802.3af® compliant power over Ethernet systems. It includes an on board power MOSFET, internal inrush, current limit and short-circuit control, IEEE 802.3af® compliant PD detection and classification circuitry and selectable AC or DC disconnect sensing. Onboard control algorithms provide complete IEEE 802.3af® compliant operation without the need of a microcontroller. The LTC4263 simplifies PSE implementation, needing only a single 48V supply and a small number of passive support components. Programmable on board power management circuitry permits multiple LTC4263s to allocate and share power in multi-port systems, allowing maximum utilization of the 48V power supply, all without the intervention of a host processor. The port current limit can be configured to automatically adjust to the detected PD class. Detection backoff timing is configurable for either Endpoint or Midspan operation.
  • Fully autonomous operation without microcontroller
  • Internal MOSFET with thermal protection
  • Power management works across multiple ports with simple RC network
  • Precision inrush control with internal sense resistor
  • Powered device (PD) detection and classification
  • AC and DC Disconnect sensing
  • Robust short-circuit protection
  • Pin-selectable detection backoff for Midspan PSEs
  • Classification dependent ICUT current threshold
  • LED Driver indicates port on and blinks status codes

Product Information

Input Voltage:
48V
Output Current:
-
UVLO:
31V
Controller IC Case Style:
DFN
No. of Pins:
14Pins
Duty Cycle (%):
6%
Frequency:
110Hz
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Automation & Process Control
  • Safety
  • Communications & Networking

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000174

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