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LINEAR TECHNOLOGY  LTC4267IDHC#PBF  Power Over Ethernet (POE) Controller, -57 V/3 mA, 200 kHz Switch/Clock, -36V UVLO Threshold, DFN-16

LINEAR TECHNOLOGY LTC4267IDHC#PBF
Manufacturer Part No:
LTC4267IDHC#PBF
Order Code:
2295359
Technical Datasheet:
See all Technical Docs

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Product Overview

The LTC4267IDHC#PBF is an IEEE 802.3af® compliant Powered Device (PD) Interface with a current-mode switching regulator, providing a complete power solution for PD applications. The LTC4267 integrates the 25kR signature resistor, classification current source, thermal overload protection, signature disable and power good signal along with an under voltage lockout optimized for use with the IEEE required diode bridge. The precision dual level input current limit allows the LTC4267 to charge large load capacitors and interface with legacy PoE systems. The current-mode switching regulator is designed for driving a 6V rated N-channel MOSFET and features programmable slope compensation, soft-start and constant frequency operation, minimizing noise even with light loads. It includes an on board error amplifier and voltage reference allowing use in both isolated and non-isolated configurations.
  • Precision dual level inrush current limit
  • Integrated current mode switching regulator
  • Onboard 25k signature resistor with disable
  • Programmable classification current
  • Thermal overload protection
  • Power good signal
  • Integrated error amplifier and voltage reference

Product Information

Input Voltage:
-57V
Output Current:
-
UVLO:
-36V
Controller IC Case Style:
DFN
No. of Pins:
16Pins
Duty Cycle (%):
80%
Frequency:
200kHz
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

  • Power Management
  • Wireless
  • Security
  • Communications & Networking

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

Tariff No:
85423990
Weight (kg):
.000833

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