Welcome Here  Shenzhen Mingjiada Electronics Co., Ltd.

sales@hkmjd.com

英banner
Shenzhen  Mingjiada Electronics Co., Ltd.

Service Telephone:86-755-83294757

Product Classification

AI Processor Chip

Resistor network

For picture reference, please see the specifications
< >

Commodity Model:LTC4270BIUK

Trade Name:Power over Ethernet (PoE) Controller

Brand:ADI

Particular Year:21+

Package:QFN-52

Delivery Date:New and Original

Stock: 10000pcs

Quantity:
Online Inquiry

Contacts:

E-Mail:

Contact Number:

Corporate Name:

Product Parameters

Manufacturer
ADI
Model
LTC4270BIUK
Package
QFN-52
Describe
12-Port PoE / PoE+ / LTPoE++ PSE Controller

Product Description

The LTC4270BIUK is a 12-port Power Sourcing Equipment (PSE) controller designed for use in Power over Ethernet (PoE) systems that comply with the IEEE 802.3at Type 1 and Type 2 specifications (high power). The transformer-isolated communication protocol replaces expensive optocouplers and complex isolated 3.3V power supplies, resulting in significant BOM cost savings. The LTC4270BIUK chip offers industry-low thermal dissipation through the use of low RDS(ON) external MOSFETs and 0.25Ω sense resistors.


Advanced power management features include a 12-bit per port current monitoring ADC, DAC programmable current limits, and universal fast shutdown for pre-selected ports. The Advanced Power Management host software is available with a free licence, and PD Discovery employs a proprietary dual-mode, 4-point detection mechanism that ensures superior protection against PD false detections. Mid-span PSE support is provided with a two-event classification capability and a 2s delay timer.


The LTC4270BIUK includes an I2C serial interface that operates at frequencies up to 1MHz. The LTC4270BIUK has a variety of power stages to provide up to 90W of PD power.


LTC4270BIUK Features

12 independent PSE channels

Compliant with IEEE 802.3at Type 1 and Type 2 standards

Chipset provides galvanic isolation

Reduced bill of materials (BOM) costs

Eliminates up to 6 high-speed optocouplers

Eliminates isolated 3.3V power supply

Low power consumption

0.25Ω detection resistance per channel

Very high reliability 4-point PD detection

Two-point applied voltage

Two-point applied current

VEE and VPORT monitoring

1s rolling IPORT averaging

Supports two and four pairs of output power

1MHz I2C compatible serial control interface

Three power levels are available

Class A - LTPoE++™: 38.7W to 90W

Class B - PoE+: 25.5W

Class C - PoE: 13W

Available in 52-pin 7mm x 8mm (LTC4270) package


LTC4270BIUK Applications

PoE PSE switches/routers

PoE PSE centre span

Associated Products

Model

Brand

Package

Quantity

Describe

LTC9105ATP

ADI

QFN-20

3000

IEEE 802.3bt PD controller with telemetry and power priority

LTC4292IUJ

ADI

QFN-40

3000

4-port PoE++ PSE analog controller

LTC4291IUF-1

ADI

QFN-24

2000

4-port IEEE 802.3bt PoE PSE controller

LTC4279IUFD

ADI

QFN-20

2000

Single-port PoE/PoE+ / LTPoE++ PSE controller

LT4293HMS

ADI

MSOP-10

2500

LTPoE++/IEEE 802.3bt PD interface controller

LT4276BIUFD

ADI

QFN-28

2000

LTPoE++/PoE+/PoE PD forward/flyback controller

LT4276AHUFD

ADI

QFN-28

2000

LTPoE++/PoE+/PoE PD forward/flyback controller

MAX5995BETE

Maxim

TQFN-16

3000

IEEE 802.3BT-compatible, electrical device interface controller

LT4275AHDD#TRPBF

ADI

DFN-10

50000

Power over Ethernet Controller (PoE) 1 channel 802.3at (PoE+), 802.3af (PoE), LTPoE++ 10-DFN (3x3)

TPS23861PWR

TI

TSSOP-28

80000

Power over Ethernet Controller (PoE) 4-channel 802.3at (PoE+), 802.3af (PoE) 28-TSSOP

FAQ

  • 1.Is the inventory and price seen on the platform accurate?

    A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

  • 2.Are all our products genuine?

    A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

  • 3.Can you provide the qualification certificate of the original factory or agent?

    A: at present, our self-employed brands TI,ST,ADI,NXP,LATTICE,CYPRESS,INFINEON,XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

  • 4.Can I make an inquiry through the company's website?

    A: You can inquire through the website, or by phone and email.

  • 5.When can I deliver the goods after placing an order? How long will it take to get there?

    A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

  • 6.Can the company issue an invoice?

    A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.

ADI

ADI

The full name of Analog Devices is Analog Devices, Inc. (ADI). As an outstanding supplier specializing in semiconductor sensors and signal processing ICs, adi regards innovation, performance and excellence as the cultural pillars of the company and ha…

Related Products

more
Company Introduction
About Us
News Information
Honorary Qualification
Inventory Query
Classification Query
Supplier Query
Help Center
Online Inquiry
Common Problem
Site Map
Contact us

Contact Number:86-755-83294757

Enterprise QQ:1668527835/ 2850151598/ 2850151584/ 2850151585

Business Hours:9:00-18:00

E-mail:sales@hkmjd.com

Company Address:Room1239, Guoli building, Zhenzhong Road, Futian District, Shenzhen, Guangdong

CopyRight ©2022 Copyright belongs to Mingjiada   Yue ICP Bei No. 05062024-12

Official QR Code

Brand Index:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9

Links:

skype:mjdsaler