芯凯电子推出符合IEEE®802.3bt标准的PoE受电设备和DC-DC反激控制器，满足PoE电源应用

时间： 2023-12-29 来源：KineticTechnologies（芯凯电子公众号）

技术问答

作为电源管理和视频/音频接口解决方案的领导者，芯凯电子发布KTA1140——符合IEEE 802.3bt标准的POE受电设备接口控制IC，和KTB1095——集成数字隔离反馈的同步整流反激控制IC，拓展了芯凯电子PoE受电设备和DC-DC转换器产品线。

KTA1140全面符合IEEE 802.3bt、802.3at和802.3af标准，它还集成了输入浪涌保护、100V的PD控制器、0.1Ω低导通电阻的热插拔MOSFET，可全面支持高达90W的输入功率等级。内部的PD控制器支持8种类型的电流分级，ATDET、PD检测、过温保护和欠压锁定功能（UVLO）。此外，KTA1140还支持（从PSE电源供电）无缝到切换到低至 9.5V的本地电源供电。

KTB1095是一款高度集成的同步整流反激式控制器，内部采用3000VRMS耐压数字隔离器，可免除对外部光耦合等器件的需求，为终端产品实现了降低成本，减小产品尺寸的目的。KTB1095在5V至100V的宽工作电压范围内工作，具有原边和副边大电流MOSFET驱动器，并采用电流模式恒定导通时间控制，实现快速瞬态响应。此外，KTB1095具有可调节的软启动功能，可以限制启动时的冲击电流，并具有输入欠压电压保护（UVLO）、输出过压保护（OVP）、逐周期限流保护、输出短路保护和热关机保护。

芯凯电子市场总监Erik Ogren表示：“芯凯电子旨在让我们的客户能够轻松设计电源”。“KTA1140具有超低导通电阻的热插拔MOSFET，可以支持最高类型8，最大90W的功率设计，它还具有无缝切换到低至9.5V的本地电源供电性能，这些性能助力系统设计简化。KTB1095产品采用了芯凯电子的Tru-Iso™技术，提供集成3000V rmson-chip数字隔离器反馈，可减少BOM中的元器件数量和PCB面积。”

产品优势:

KTA1140 – PoE 802.3bt PD接口控制IC

● 全面符合IEEE^® 802.3bt标准

输入功率最高至90W

支持0-8级分类的POE受电设备

● 符合IEEE^®802.3af/at

● 符合IEC 61000-4-2/3/4/5/6标准的EMC要求

● 支持无缝切换到低至9.5V的本地电源

● 可编程的电流限制保护

● 低电阻（典型值0.1Ω) 热插拔MOSFET

● 5×5mm, 20 lead QFN 封装

KTB1095 – 带数字隔离的100V同步反激控制IC

● 5V至100V宽工作电压范围

● 集成数字隔离反馈

集成3000Vrms耐压的原副边隔离

● ±1%精度参考电压

● 集成原边和副边MOSFET驱动器

3A接收器/2A源驱动能力

● 100kHz至700kHz的可调开关频率

● 集成逐周期限流保护、输入欠压、输出过流、输出短路、过温保护

● SOIC-16宽体（10.3mmx7.5mm）封装

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本文由Vicky转载自KineticTechnologies（芯凯电子公众号），原文标题为:芯凯电子宣布推出全新符合IEEE®802.3bt的PoE受电设备和DC-DC反激控制器，全力满足PoE中的电源应用，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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必易微（KIWI）电源解决方案产品选型指南

描述- 深圳市必易微电子股份有限公司 (股票代码：688045) 拥有半导体领域的资深专家和高效的管理团队，主要从事高性能模拟及数模混合集成电路的研发和销售，在杭州、厦门、上海、成都、中山等地设有研发中心及分支机构。必易微高度重视知识产权的开发和保护，已拥有多项集成电路和系统应用的国际、国内专利。主营产品包括 AC-DC、DC-DC、驱动 IC、线性稳压、保护芯片、电池管理等，为消费电子、工业、通讯、计算机等领域客户提供完整电源解决方案和系统集成。

型号- KP3282,KP40611W,KP3281,KP23130M,KP311BH,KP212,KP2264H,KP206D,KP81106A,KP30173M,KP2591A,KP206A,KP206B,KP36374,KP36373,KP2066,KP2064,KP8530X,KP41282,KP3210B,KP22066A,KP2182,KP2062,KP30172M,KP21822M,KP35052,KP36384,KP35053,KP22308,KP36383,KP36382,KP35051,KP22306,KP40511,KP40512,KP23132M,KP23132K,KP23162,KP2262H,KP23161,KP23160,KP1511,KP35026,KP23264M,KP41260,KP41140,KP41261,KP2806A,KP41141,KP41262,KP41142,KP201,KP30262,KP30264,KP206,KP35032,KP35033,KP30261,KP35031,KP22315A,KP40512M,KP40612,KP3126,KP21824M,KP21824L,KP40611,KP23267,KP23267M,KP21825C,KP4050,KP30181H,KP32652,KP30182H,KP32651,KP35001,KP36573,KP36572,KP40561P,KP22066,KP22064,KP41240,KP41361,KP3501A,KP41241,KP23151,KP22062,KP23150,KP22305L,KP30362,KP2315A,KP2206A,KP22305A,KP22035,KP22033,KP2813A,KP32511,KP40613QD,KP30183M,KP32512,KP36675,KP36674,KP35101,KP36673,KP22306A,KP21827M,KP23132,KP23131,KP23130,KP41340,KP30182M,KP30183H,KP30584,KP35111,KP3251A,KP23221,KP2201C,KP35200,KP8110X,KP22308B,KP3310,KP22308A,KP3311,KP15051,KP23111,KP23110,KP15052,KP32621,KP32622,KP1505A,KP2311A,KP2202A,KP81103,KP81102,KP81101,KP81106,KP41262C,KP2205,KP2206,KP2203,KP21827,KP21824,KP2201,KP2202,KP4060,KP41261C,KP23162M,KP40561,KP23162K,KP311A,KP311B,KP2822,KP3116,KP85631,KP3111,KP2264,KP35083,KP2261,KP40562,KP2262,KP35081,KP3114,KP35082,KP3112,KP40511P,KP201H,KP201F,KP201K,KP201A,KP31614,KP201E,KP22062A,KP201B,KP201C,KP2813,KP3221,KP2011,KP3224,KP3116H,KP3222,KP2012,KP2013,KP3211B,KP23152M,KP2806,KP321B,KP321AB,KP2803,KP30171,KP2801,KP35064,KP40661,KP35062,KP3113H,KP3212B,KP15113,KP15114,KP15111,KP22064A,KP3206,KP3205,KP3211H,KP2591,KP3114H

选型指南 - 必易微 - REV 1.0 - 2023/6/1 PDF 中文下载