【应用】国产PWM控制功率开关芯片KP35026应用于LED灯带调光，开关频率可达45kHz

时间： 2022-09-14 来源：世强

技术问答

随着科技的不断发展进步，在我们日常生活中能体会到越来越多的独特而美好的氛围场景，各种氛围的灯光设计都需要用到灯带，而LED灯带在我们生活中也随处可见。某客户设计一款LED灯带调光器，直接交流220V的市电输入，经过整流电路后，然后到开关控制电路，通过开关控制电路对LED灯带进行控制。经过我司选型推荐客户在开关控制电路部分采用了国产必易微的PWM控制功率开关 KP35026，这款芯片与与传统的PWM控制芯片有所差异，它的内部无固定时钟驱动MOSFET，系统开关频率随负载变化可实现自动调节，并且开关频率可达45KHz，能完全满足客户使用需求，如下图为必易微的PWM控制功率开关KP35026的应用框图：

PWM控制功率开关KP35026应用框图

客户采用了必易微的PWM控制功率开关芯片KP35026，具有以下特点：

（1）芯片内部集成了500V高压MOSFET，可提高系统浪涌耐受能力；

（2）开关频率最高可达45kHz，内部无固定时钟驱动MOSFET，系统开关频率随负载变化可实现自动调节；

（3）该芯片采用了多模式PWM控制技术和动态响应优化电路，可以一高动态响应能力以及降低系统的噪声；

（4）空载待机功耗可做到低于20mW，更节省资源；

（5）该芯片支持降压和升降压拓扑，可供客户作更多设计选择。

综上所述，在该客户的方案设计中，考虑到客户开关工作频率以及快速动态响应的要求，结合到该芯片已经在市场上也经过了长期的验证，性能、功能等方面都较为出色，选用必易微的PWM控制功率开关KP35026是一个和理想的设计与选择。

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良工推出了一款67W输出功率的氮化镓快充插座，这款快充插座自带1.5米长电源线，具备两个新国标五孔插孔和一个双孔插孔，并设有总控开关和LED电源指示灯。整流桥来自深圳市沃尔德实业有限公司，型号WRLSB80M；非隔离供电芯片来自必易微，型号KP15051。

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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

深圳市必易微电子股份有限公司

型号- KP52X20X,KP22065A,KP3282,KP13262,KP52X218,KP23130M,KP3281,KP311BH,KP13264,KP206D,KP16014A,KP206A,KP206B,KP36374,KP1326A,KP36373,KP12761FQ,KP21825CB,KP2064,KP22066A,KP524208A,KP2182,KPE30182M,KP40581P,KP30172M,KP21822M,KP85303,KP571106X,KP85302,KP1315A,KP85301,KP21822F,KPE30181M,KP107W,KPE90772B,KP40511,KP40512,KP107L,KP620303,KP23132M,KP1071CL,KP23132K,KP107Q,KP10780L,KP23162,KP23161,KP23160,KP21824BM,KP620305,KP521111A,KP21823M,KP523201A,KP35026,KP1469A,KP85211,KP35022,KP1074,KP52X201,KP1073,KP1194,KP1076,KP522211D,KP522211B,KP52X208,KP23264M,KP522211A,KP1469K,KS11062E,KP1191,KP1190,KP22086,KP1072,KP10781L,KP1193,KP13251,KP1192,KP22083,KP13252,KP22082,KP13134,KP13255,KP22081,KP13254,KP22080,KP523201C,KP13135,KP523201B,KP523201D,KP85201,KP85321,KP57223X,KP1184,KP52X211,KP35031,KP21824H,KP40612,KP3126,KP40613,KP4214,KP21824M,KP4213,KP21824L,KP40611,KP23122M,KP23267,KP23267M,KP21825C,KS082,KP4050,KP86202,KP86201,KP571115X,KP36573,KP36572,KP40660B,KS11064E,KP522201D,KP522201C,KP522201B,KP522201A,KP22066,KP22064,KP722XX,KP3501A,KP23151,KP22062,KP23150,KP70211XS,KP70211XT,KP523208B,KP523208A,KP523208D,KP1274FQH,KP523208C,KP2315A,KP1274FQC,KPE90771,KP2206A,KPE90773,KP21827B,KP22035,KP107BQ,KP23112M,KP22033,KP23121,KP52X10X,KP14651,KP14652,KP12353,KP12354,KP14653,KP14654,KP36675,KP36674,KP520411,KP36673,KP520419,KP21827M,KP23111M,KP107CQ,KP23132,KP23131,KP23130,KP90831,KP1274FNQ,KP90477X,KP523218D,KP523218A,KP35112,KP523218B,KP3284,KPE90874,KP1271FH,KP7122,KP522218D,KP522218B,KP522218A,KP18003B,KP16015,KP18003A,KP1271FN,KP16014,KP16017,KP1070L,KP22080H,KP18002F,KP1070Q,KP1601A,KP521401,KP12760F,KP521405,KP521403,KP7112,KP521409,KP22308A,KP522302E,KP15051,KP14622H,KP15052,KP22082A,KP22082B,KP14634A,KP1071L,KP32622,KP1601X,KP1505A,KP1071Q,KP81103,KP81102,KP81101,KP520421,KP1271FC,KP520429,KP1272FH,KP522208D,KP522208C,KP521119A,KP522208B,KP522208A,KP18320A,KP1272FN,KP14633A,KP40662B,KP21827,KP21824,KP21825,KP21822,KP4060,KP93101,KP41540,KP14632A,KP32601,KP83201A,KP83201B,KP83201C,KP40661B,KP521411,KP41662,KP1272FC,KP521419,KP23162M,KP40561,KP23162K,KP2822,KP12684FM,KP85632,KP85631,KP522405A,KP522405B,KP40562,KP40511P,KP31616,KP421,KP31614,KP22062A,KP1601,KP522403,KP522405,KP23152M,KP2806,KP18001A,KP521101,KP321AB,KP521103,KP521102,KP522312,KP52230X,KP12760FQ,KP521109,KP35064,KP521108,KP522318,KP521107,KP522403A,KP35062,KP12762F,KP522403B,KP14636L,KP522308E,KP14624H,KP15113,KP15114,KP511419,KP15111,KP521401A,KP15112,KP22064A,KP85402,KP1402A,KP522302,KP83102,KP12761F,KP522308,KP408X,KP1402D,KP127FQ,KP42262,KP18032,KP42261,KP1271FNQ,KP212,KP40612B,KP1078CL,KP2264H,KP10790,KP10791,KP10792,KP1078R,KP523302,KP2591A,KP521001,KP52220X,KP521009,KP1079A,KP523308,KP3210B,KP68301,KP521403A,KP40611B,KP1164M,KP2120B,KP522201,KP521111,KP22308,KP521119,KP22306,KP1076C,KP511101,KP2262H,KP512318,KP511109,KP32551,KP1511,KP523201,KP1078AL,KP1077A,KP1077B,KP41260,KP41261,KP2806A,KP68321,KP41262,KP521405A,KP5711XXX,KP201,KP1078BL,KP10780,KP18026,KP10781,KP28071,KP30262,KP522101,KP512318D,KP28134A,KP206,KP523312,KP13135A,KP22315A,KP40512M,KP1078A,KP1078B,KP523318,KP1078C,KP1273FN,KP41260D,KP1074L,KP14631A,KP511009,KP10750,KP10751,KP10752,KP1074Q,KP1455,KP28033,KP28032,KP3637,KP28034,KP1075A,KP1075B,KP1075C,KP70311X,KP18003,KP41361,KP22305L,KP10760,KP10761,KP10762,KP1075Q,KP30362,KP1326,KP28162,KP1325,KP22305A,KP52320X,KP1273FC,KP1076A,KP12682F,KP1076B,KP1274FC,KP2801A,KP2813A,KP18330,KP1274FH,KP1274FN,KP32511,KP1274FQ,KP2161B,KP1072L,KP32512,KP1313,KP119,KP1072Q,KP1315,KP526201C,KP116,KP526201B,KP526201A,KP118,KP22306A,KP52420X,KP21863,KP521409A,KP18106,KP123,KP122,KP18103,KP1073L,KP18108,KP1073Q,KP30584,KP3251A,KP23223,KP23223M,KP526208C,KP526208B,KP526208A,KP1273FQC,KP107AL,KP1463A,KP3310,KP1255,KP3311,KP23112,KP107AQ,KP23111,KP23110,KP571110X,KP2311A,KP2202A,KP2212,KP70311XT,KP70311XS,KP70211X,KP41262C,KP90641,KP525201A,KP12551,KP525201C,KP525201B,KP12553,KP12554,KP2205,KP2206,KP2203,KP2126B,KP2208,KP2201,KP2202,KP1234,KP90871,KP90872,KP41261C,KP90873,KP41261D,KP571100X,KP14622,KP14623,KP14501,KP1272FQH,KP52520X,KP2212B,KP1272FQC,KP1221,KP1462,KP1220,KP1465,KP1222,KP512318S,KP90661,KP1182,KP641100,KP311A,KP311B,KP3116,KP525208B,KP52620X,KP525208A,KP525208C,KP653202,KP653201,KP2264,KP3111,KP52X302,KP2262,KP13134A,KP3114,KP3112,KP642201,KP201H,KP642202,KP642203,KP201F,KPE201K,KP68500,KP1272FNQ,KP642200,KP201A,KP571130X,KP523211B,KP523211A,KP201E,KP523211D,KP201B,KP201C,KP2210A,KP1162,KP2011,KP3221,KS11064,KP1164,KS11062,KP2591(A),KP2012,KP3222,KP2013,KP620105,KP521909,KP18053,KP641003,KP1274F,KP620103,KP3211B,KP18058,KP18057,KP18056,KP18055,KP212A,KP18059,KP127F,KP321B,KP2122B,KP1271FQH,KP1271FQC,KP521901,KP18061,KP15113A,KP3212B,KP18062,KP18069,KP18068,KP68520,KP571120X,KP3206,KP2123B,KP3205,KP15114H,KP2591,KP524201A

商品及供应商介绍 - 必易微 - 2024.05 PDF 中文下载

KP328X 固定 18V 输出、高性能低成本离线式 PWM 控制功率开关

型号- KP328X,KP328X 系列

数据手册 - 必易微 - REV1.1 - 2022/4/1 PDF 中文下载查看更多版本

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

【产品】国产高性能离线式PWM控制功率开关KP3114SG，内置高耐压MOSFET

必易微电子推出的KP3114SG是一款高性能低成本PWM控制功率开关，适用于离线式小功率降压型应用场合，外围电路简单、器件个数少。同时产品内置高耐压MOSFET可提高系统浪涌耐受能力。典型应用为小家电电源。

新产品发布时间 : 2020-12-20

【应用】具有高集成度的PWM控制功率开关KP3211BSGA简化EC风机电源外围电路设计，输出电压最大达30V

EC风机因其结构简单、性价比高在家电产业得到广泛应用。某客户在EC风机散热模组设计时须推荐一PWM控制功率开关用于系统供电，要求工作电压24V，连续工作电流不低于550mA，国产优先，根据需求，推荐必易微KP3211BSGA。

器件选型发布时间 : 2023-05-25

KP35026 低成本、快速动态响应离线式 PWM 控制功率开关

型号- KP35026

数据手册 - 必易微 - REV1.01 - 2022/4/7 PDF 中文下载查看更多版本

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