【产品】必易微推出“第三代”高可靠性MOSFET PSR KP2322X系列，集成单点失效保护和钳频保护功能

时间： 2021-06-01 来源：必易微电子

技术问答

必易微推出了“第三代”高可靠性MOSFET PSR KP2322X系列，是DCM工作模式的恒压恒流PSR功率开关管，集成了单点失效保护和钳频保护功能，在保证高可靠性的前提下带来优良的性能体验。

单点失效保护，为您的电源可靠性保驾护航

●单点失效保护简介

单点失效保护是指IC各个pin脚以及变压器、整流二极管等关键元件的开路和短路保护，“单点”失效是相较“多点”失效而言。由于电子设备的使用环境复杂，难免出现器件短路、开路等问题。必易微的单点失效保护技术，能够确保上述故障发生时，输出电压不飘高，电源不损坏，可以加强对设备和人身的安全保证。同时，电源生产制程中也可能存在IC Pin脚虚焊或短接的问题，单点失效保护功能也可以有效避免IC损坏，减少工厂的损失。

■KP2322X单点失效保护功能

KP2322X集成完备的单点失效保护，列表如下：

表 1

下图以FB Pin脚短路保护的波形为例，演示单点失效保护的测试结果。当FB短路发生时，IC立即停止工作，输出电压Vo未发生飙高或者失控现象；当FB短路撤除时，IC立即恢复工作，输出电压Vo恢复正常

图 1

■钳频保护功能，防止炸机于万一

短路可靠性隐患

PSR一般通过检测FB引脚电压来判别变压器激磁电感的退磁状态，但是FB电压上存在寄生振荡，当电源输出板端短路时，FB电压的振荡极易过零，使IC误检测到变压器退磁。对于一般的PSR IC而言，误检测到变压器退磁，意味着电源将会工作于高频CCM的状态，容易造成PSR IC和SR IC的损坏。

图 2短路时FB振荡过强，Tblank后误检测到消磁，频率可达100KHz以上，系统进CCM

■KP2322x的钳频保护功能

KP2322X集成了钳频保护功能，在任何恶劣的情况下，短路工作频率都不会超过30kHz，保证系统为DCM工作状态，为电源的安全可靠工作增加了一重保障。

图 3 短路时FB振荡过强，Tblank后误检测到消磁，但是受限于30KHz上钳频，系统仍为DCM工作

■12V1A六级能效，无Y无共模设计，“基操勿6”

在保证系统可靠性的同时，KP2322X的性能也有着惊艳的表现。基于KP23223SGA的12V1A适配器方案，无Y、无共模且变压器为原边绕组一次性绕制结构，突出一个字——“省”！板端测试满足欧盟六级能效，待机损耗裕量充足；IV曲线突出一个“横平竖直”，高低压输入下OCP一致性良好；ESD、Surge、EMI也留有充足裕量！在竞争日趋激烈的适配器市场中，KP2322X不仅为您带来多一份选择，也为您带来多一份的自信。做适配器，选择必易微，就是这么容易！

■方案展示：

图 4 方案展示

图 5 样机尺寸 (mm): L x W x H= 47.9mm x 37.3mm x 20.3mm

■性能展示：

图 6 能效测试：PCB板端能效轻松满足六级能效标准

图 7 IV曲线：输出电压负载调整率<±5%，线调整率<±2%

图 8EMI传导、辐射满足EN55015 ClassB，裕量>6dB

此外，ESD满足IEC61000-4-2，8kV/15kV等级要求；Surge满足IEC 61000-4-5:2005，4kV等级要求；交流绝缘满足3.5kV要求。

总结：

KP2322X 是针对中小功率适配器以及充电器市场推出的高性能原边控制恒压恒流功率开关。芯片支持 DCM模式工作，能够轻松满足六级能效标准规定的平均效率与待机要求，此外优异的EMI表现，强壮的浪涌，ESD能力极大地精简了电源设计与调试过程，内置的单点失效保护功能及钳频保护功能，在不增加器件的情况下，可以大幅提高电源系统的可靠性。

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本文由三年不鸣转载自必易微电子，原文标题为:必易微“第三代”高可靠性MOSFET PSR KP2322X系列强势来袭，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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商品及供应商介绍 - 必易微 - 2024.05 PDF 中文下载

必易微（KIWI）AC-DC反激式电源转换IC选型表

描述- 深圳市必易微电子股份有限公司（股票代码：688045）是一家高性能模拟及数模混合集成电路供应商，主营产品包括 AC-DC、DC-DC、驱动 IC、线性稳压、电池管理、充电管理、放大器、数模转换器、传感器等，为消费电子、工业控制、网络通讯、数据中心、汽车电子等领域客户提供一站式芯片解决方案和系统集成。

型号- KP2190,KP23223,KP23267,KP23223M,KP23162M,KP21825C,KP23162K,KP212,KP2264H,KP206A,KP206B,KP36572,KP36374,KP36373,KP2066,KP2264,KP2261,KP2064,KP2262,KP22308A,KP36674P,KP201F,KP22066A,KP2182,KP23111,KP22066,KP23110,KP2062,KP22064,KP23151,KP22062,KP201A,KP22305L,KP201E,KP201B,KP22062A,KP201C,KP21822M,KP2311A,KP2202A,KP2206A,KP2011,KP22305A,KP2012,KP2013,KP2161M,KP23132M,KP22035,KP23132K,KP23152M,KP2262H,KP23161,KP23160,KP2205,KP2206,KP2203,KP36675,KP36674,KP36673,KP21827,KP2164,KP21824,KP22306A,KP2165,KP2162,KP21823,KP2201,KP21827M,KP2202,KP2166,KP2162M,KP23132,KP2161,KP23131,KP23130,KP2166M,KP201,KP2190B,KP22083,KP22082,KP22080,KP206,KP23225C,KP22315A,KP21824M,KP21824L

选型指南 - 必易微 - 2023/9/5 PDF 中文下载

KP2322X 带单点失效保护的高性能恒流恒压原边控制功率开关 Preliminary Datasheet

型号- KP2322X

数据手册 - 必易微 - REV1.01S - 2022/4/3 PDF 中文下载

必易微（KIWI）LED驱动IC选型指南

目录- 非隔离和隔离产品智能调光、可控硅调光产品非隔离恒压和隔离恒压产品 DC-DC和电机产品线性、去纹波产品 LED照明方案介绍

型号- KP18032,KP1271FNQ,KP13262,KP1078CL,KP13264,KP10790,KP10791,KP10792,KP1078CH,KP1313X,KP16014A,KP1325X,KP523302,KP2591A,KP1326A,KP1079A,KP523308,KP2182,KP1078DH,KP21822M,KP1402,KP85302,KP107W,KP119X,KP1076C,KP107L,KP1071CL,KP23132M,KP107Q,KP10780L,KP1078AH,KP1511,KP421X,KP523201A,KP35026,KP1078AL,KP1074,KP1073,KP1194,KP2816X,KP10781H,KP1076,KP1077A,KP2806A,KP512302,KP1601XA,KP1191,KP10781L,KP1072,KP13251,KP1193,KP1192,KP201,KP1078BL,KP13252,KP13255,KP13134,KP10780,KP13254,KP18026,KP10781,KP1078BH,KP13135,KP512308,KP30262,KP30264,KP28134A,KP30261,KP1184,KP22315A,KP23265C,KP1078A,KP1078B,KP4214,KP21824M,KP4213,KP21824L,KP23267,KP21825C,KP1074L,KP10750,KP1810X,KP10751,KP10752,KP1074Q,KP1075A,KP1075B,KP1075C,KP522201A,KP22066,KP22064,KP18001,KP3501A,KP22062,KP10760,KP10761,KP10762,KP1075Q,KP1326,KP28163,KP1325,KP28162,KP523208A,KP1075X,KP1274FQH,KP1274FQC,KP1273FC,KP1076A,KP12682F,KP1076B,KP107BQ,KP1274FC,KP22035,KP2801A,KP2813A,KP1274FH,KP18330,KP1505X,KP1274FN,KP12353,KP1274FQ,KP1072L,KP12354,KP1313,KP119,KP1072Q,KP1315,KP116,KP35101,KP118,KP22306A,KP107CQ,KP23132,KP23131,KP23130,KP123,KP18106,KP122,KP1073L,KP18108,KP1073Q,KP23223,KP23223M,KP1271FN,KP14633,KP14634,KP14631,KP1070L,KP14632,KP2201B,KP18002F,KP1070Q,KP1601A,KP1462X,KP12760F,KP521405,KP1273FQC,KP521403,KP107AL,KP3310,KP22308A,KP1255,KP522302E,KP15051,KP107AQ,KP14622H,KP15052,KP18320,KP1071L,KP1505A,KP1463X,KP123X,KP1071Q,KP81103,KP28123,KP28122,KP18001M,KP1271FC,KP1272FH,KP522208A,KP127XFQH,KP12551,KP1272FN,KP12554,KP127XFQC,KP2205,KP2206,KP2203,KP2322,KP2201,KP2202,KP1234,KP28162X,KP14622,KP14623,KP14501,KP1272FQH,KP1469,KP1255X,KP1272FQC,KP1272FC,KP1463,KP1221,KP1462,KP1220,KP52140X,KP1222,KP1806X,KP1182,KP1462XH,KP1511X,KP2822,KP12684FM,KP1059A,KP3111,KP1272FNQ,KP421,KP127XFQ,KP1162,KP1164,KP10780H,KP18053,KP1274F,KP18058,KP18055,KP2806,KP18059,KP127F,KP18001B,KP18001A,KP1271FQC,KP35064,KP35062,KP18061,KP18062,KP18069,KP1805X,KP18068,KP522308E,KP14624H,KP15113,KP15114,KP15111,KP3506X,KP1402A,KP12761F,KP2591,KP127FQ

选型指南 - 必易微 - REV 1.1 - 2023/6/1 PDF 中文下载

必易微ACDC产品选型表

必易微提供以下技术参数型号为PN级的AC-DC产品选型，包含LLC 控制器,PFC 控制器,PFC 转换器,PSR 控制器,PSR 转换器,SR 控制器,SR 转换器,SSR 控制器,SSR 转换器,电池监控保护器,非隔离控制器,非隔离转换器,高压智能线性稳压器等，具有CV、CC&CV、CP&CV多种输出特性，低压&高压以及电阻启动方式，Buck/Buck-Boost/Flyback等多种拓扑电路结构，六级能效标准，待机功耗最低可＜20mW。必易微ACDC产品具有SOP-7、DIP-7、SOT23-6等多种封装，具体下单型号可参考产品数据手册。

产品型号	品类	封装	拓扑电路	最大功率(W)	工作模式	最高频率(kHz)	输出特性	启动方式	能效标准	待机功耗(mW)	VDDmax(V)
KP212	PSR 控制器	SOT23-6	Buck/Flyback	65	DCM	70	CC&CV	电阻启动	六级	<75	30

选型表 - 必易微立即选型

POS机与便携式打印机 | 必易微一站式芯片解决方案

便携式打印机，则以体积小、重量轻、便携带、可用电池驱动而著称，适合需要移动打印解决方案的场景，比如超市、快递服务和仓库管理等领域。我们今天将围绕 POS 机与便携式打印机系统硬件，必易微提供一站式POS机和便携式打印机芯片解决方案，包括电池管理、电机驱动、电压转换、LED背光驱动等模块，具有高效、低功耗、高集成度等特点，满足不同应用需求。

应用方案发布时间 : 2024-10-28

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

必易微展会预告 | 2024年9月6日合肥家电电源与智能变频技术研讨会

2024年9月6日-9月7日必易微邀请您参加在合肥白金汉爵大酒店（合肥市包河区徽州大道5112号）举办的第三届合肥家电电源与智能变频技术研讨会。

原厂动态发布时间 : 2024-09-03

深圳市必易微电子股份有限公司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，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。

LED照明驱动非调光非隔离低PF LED驱动芯片非调光非隔离高PF LED驱动芯片非调光隔离高PF LED驱动芯片非调光隔离低PF LED驱动芯片非调光恒压驱动调光 LED 线性恒流驱动调光开关 AC/DC适配器副边PWM控制器原边PWM控制器副边PWM控制功率开关原边PWM控制功率开关非隔离控制功率开关同步整流器

授权代理商 - 深圳市世强元件网络有限公司线上商城技术资料

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必易微（KIWI）家用电器电源选型指南

目录- 公司介绍家用电器电源产品选型表家用电器电源产品方案和应用介绍

型号- KP3282,KP21825C,KP3281,KP52X218,KP311A,KP2264H,KP311B,KP522211,KP3116,KP525208,KP525201,KP86202,KP86201,KP36374,KP36572,KP82201,KP36373,KP8110X,KP521405,KP522218,KP521403,KP3114,KP3112,KP3311,KP3210B,KP521403A,KP522201,KP526208,KP523211,KP81103,KP81102,KP85302,KP81101,KP85301,KP3221,KP522208,KP522405,KP3224,KP523218,KP3222,KP85309,KP2161M,KP3211B,KP2262H,KP526201,KP2126,KP321AB,KP36675,KP36674,KP36673,KP85211,KP523201,KP52X201,KP523208,KP3212B,KP52X208,KP2161,KP521405A,KP3206,KP3205,KP524201,KP85321,KP52X211,KP3284,KP524208,KP21824M

选型指南 - 必易微 - REV1.21 - 2022/8/25 PDF 中文下载