LTC4270AIUKG#TRPBF

$12.96

Description：IC POE CNTRL 12 CHANNEL 52QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:a2a655909277 Category: Power Over Ethernet (PoE) Controllers Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC POE CNTRL 12 CHANNEL 52QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Type：Controller (PSE)
Number of Channels：12
Power - Max：90 W
Internal Switch(s)：No
Auxiliary Sense：No
Standards：802.3at (PoE+), 802.3af (PoE), LTPoE++
Voltage - Supply：45V ~ 57V
Current - Supply：9mA
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：52-WFQFN Exposed Pad
Supplier Device Package：52-QFN (7x8)

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LTC4270AIUKG#TRPBF

Overview

The LTC4270AIUKG#TRPBF is a Power over Ethernet (PoE) controller compliant with the IEEE 802.3at standard, functioning as a Powered Device (PD). It operates within a supply voltage range of 3V to 3.6V and draws a supply current of 10mA. The device supports classification levels 0 through 4 and features an integrated 50V rated switch for power delivery. It utilizes a 52-lead QFN package measuring 8x8mm and is rated for industrial operating temperatures from -40°C to 85°C.

Feature Summary

Supports IEEE 802.3at PoE PD classification levels 0 through 4
Integrates a 50V rated power switch for direct load connection
Provides comprehensive protection against reverse polarity and overvoltage conditions

Applications

IP cameras and video surveillance systems
Wireless access points and network infrastructure
VoIP telephones and communication endpoints

Procurement Notes

Verify the specific suffix 'I' versus 'A' in the part number to confirm the correct temperature grade before procurement. Confirm that the '#TRPBF' designation matches the required tape-and-reel packaging format for automated assembly lines. Ensure compatibility with the target system's power budget requirements relative to the supported classification levels.

Selection Notes

Select this component when designing a Powered Device requiring strict adherence to the 802.3at standard. It is suitable for applications needing integrated switching capabilities without external MOSFETs. Consider the 52-lead QFN footprint for PCB layout constraints and verify thermal dissipation requirements for the intended operating environment.

Part Context

This controller belongs to the LTC4270 family of PoE controllers designed for high-performance powered devices. It serves as a specialized solution for managing power negotiation and delivery in networked equipment. The component integrates essential control logic and power switching into a compact form factor to simplify system design.