LTC4274A

推荐新设计使用

单通道 PoE / PoE+ / LTPoE++ PSE 控制器

数据手册产品选型表

产品模型: 10

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产品详情

符合 IEEE 802.3at Type 1 和 Type 2 标准
低功耗
- 每个通道具有 0.25Ω 的检测电阻
非常高可靠性的 4 点 PD 检测
- 两点施加电压
- 两点施加电流
高电容老式设备检测
1MHz I²C 兼容型串行控制接口
中跨超时定时器
支持两对和四对输出功率
可提供多种功率级
- LTC4274A-1：LTPoE++^™38.7W
- LTC4274A-2：LTPoE++ 52.7W
- LTC4274A-3：LTPoE++ 70W
- LTC4274A-4：LTPoE++ 90W
- LTC4274C：PoE 13W
采用 38 引脚 5mm x 7mm QFN 封装

参考资料

数据手册 1

LTC4274A/LTC4274C: Single PoE/PoE+/LTPoE++ PSE Controller Data Sheet 07/17/2017

用户手册 1

DC1814A - Demo Manual 01/28/2016

ADI 始终高度重视提供符合最高质量和可靠性水平的产品。我们通过将质量和可靠性检查纳入产品和工艺设计的各个范围以及制造过程来实现这一目标。出货产品的“零缺陷”始终是我们的目标。查看我们的质量和可靠性计划和认证以了解更多信息。

产品型号	引脚/封装图-中文版	文档	CAD 符号，脚注和 3D模型
LTC4274AIUHF-1#PBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4274AIUHF-1#TRPBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4274AIUHF-2#PBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4274AIUHF-2#TRPBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4274AIUHF-3#PBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4274AIUHF-3#TRPBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4274AIUHF-4#PBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4274AIUHF-4#TRPBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4274CIUHF#PBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4274CIUHF#TRPBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

产品型号	产品生命周期	PCN

12月 28, 2020 - 20_0245 Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)
		PCN20_0245_Form Material_Report Delta Qualification Matrix Other Qualification Results Summary
LTC4274AIUHF-1#PBF	量产
LTC4274AIUHF-1#TRPBF	量产
LTC4274AIUHF-2#PBF	量产
LTC4274AIUHF-2#TRPBF	量产
LTC4274AIUHF-3#PBF	量产
LTC4274AIUHF-3#TRPBF	量产
LTC4274AIUHF-4#PBF	量产
LTC4274AIUHF-4#TRPBF	量产
LTC4274CIUHF#PBF	量产
LTC4274CIUHF#TRPBF	量产

这是最新版本的数据手册

软件资源

Evaluation Software 1

Software Interface Data Sheet and Software

The software interface data sheet for this PSE may be requested from the Software Request Form (SRF). This data sheet describes the I²C interface and programming details for the respective PSE controller.

Reference software for LTPoE++ Semi-auto mode operation is available for the LTC4266A and may be applied to the LTC4274A; this software may be requested from the Software Request Form.

Software Request Form 新

硬件生态系统

部分模型	产品周期	描述
Interface Transceivers & Isolators 1
LTC4310	量产	可热插拔的 I²C 隔离器
以太网供电(PoE)接口控制器 1
LT4275	推荐新设计使用	LTPoE++ / PoE+ / PoE PD 控制器

部分模型	产品周期	描述
LTC4279	推荐新设计使用	单端口 PoE / PoE+ / LTPoE++ PSE 控制器

工具及仿真模型

LTspice

LTspice中提供以下器件型号：

LTC4274

LTspice^®是一款强大高效的免费仿真软件、原理图采集和波形观测器，为改善模拟电路的仿真提供增强功能和模型。

评估套件

LTC4274A-4 Demo Board | LTPoE++ (90W) PSE

立即购买更多内容

产品详情

Demonstration circuit 1814A features the LTC4274A, single port power sourcing equipment (PSE) controller, capable of delivering up to 90W of LTPoE++^™ power to a compatible LTPoE++ powered device (PD). A proprietary detection/classification scheme allows mutual identification between an LTPoE++ PSE and LTPoE++ PD while remaining compatible and interoperable with existing Type 1 (13W) and Type 2 (25.5W) PDs. The LTC4274A feature set is a superset of the popular LTC4274. These PSE controllers utilize low R_ON external MOSFETs and 0.25Ω sense resistors which are especially important at the LTPoE++ current levels to maintain the lowest possible heat dissipation.

资料

DC1814A - Demo Manual
2016/1/28

DC1814A - Design Files
2016/2/24

DC1814A - Schematic
2016/2/24

LTC4274A-1 Demo Board | LTPoE++ (38.7W) PSE

立即购买更多内容

产品详情

Demonstration circuit 1814A features the LTC4274A, single port power sourcing equipment (PSE) controller, capable of delivering up to 90W of LTPoE++^™ power to a compatible LTPoE++ powered device (PD). A proprietary detection/classification scheme allows mutual identification between an LTPoE++ PSE and LTPoE++ PD while remaining compatible and interoperable with existing Type 1 (13W) and Type 2 (25.5W) PDs. The LTC4274A feature set is a superset of the popular LTC4274. These PSE controllers utilize low RON external MOSFETs and 0.25Ω sense resistors which are especially important at the LTPoE++ current levels to maintain the lowest possible heat dissipation.

资料

DC1814A - Demo Manual
2016/1/28

DC1814A - Design Files
2016/2/24

DC1814A - Schematic
2016/2/24

LTC4274A-3 Demo Board | LTPoE++ (70W) PSE

立即购买更多内容

产品详情

资料

DC1814A - Demo Manual
2016/1/28

DC1814A - Design Files
2016/2/24

DC1814A - Schematic
2016/2/24

LTC4274A-2 Demo Board | LTPoE++ (52.7W) PSE

立即购买更多内容

产品详情

Demonstration circuit 1814A features the LTC4274A, single port power sourcing equipment (PSE) controller, capable of delivering up to 90W of LTPoE++^™ power to a compatible LTPoE++ powered device (PD). A proprietary detection/classification scheme allows mutual identification between an LTPoE++ PSE and LTPoE++ PD while remaining compatible and interoperable with existing Type 1 (13W) and Type 2 (25.5W) PDs. The LTC4274A feature set is a superset of the popular LTC4274. These PSE controllers utilize low RON external MOSFETs and 0.25Ω sense resistors which are especially important at the LTPoE++ current levels to maintain the lowest possible heat dissipation.