【应用】国产无电感ACDC KP3310可取代传统阻容降压方案,外围极简、输出稳定
将交流市电转换为低压直流的常规方法是采用变压器降压后再整流滤波,当受体积和成本等因素的限制时,最简单实用的方法就是采用阻容降压式电源。阻容降压包括电容降压和电阻降压两种,电容降压整流后未经稳压的直流电压一般会高于30V,并且会随负载电流的变化发生很大波动,故不适合大电流供电的应用。
本文对比传统阻容降压与必易微电子全新KP3310方案做对比,包括电路器件数量、KP3310SGA电路优点等方面,分析用KP3310无电感ACDC方案去取代传统阻容降压方案的优势。
图1:传统阻容降压与KP3310的原理图对比
图2:传统阻容降压与KP3310的BOM表对比
A、从图1&图2对比分析可以看出:传统阻容降压的缺点如下:
1、输出电压不稳,取决于稳压管精度(温飘大)
2、CBB容易衰减,使用时间长之后带载能力会下降,寿命短
3、输入杂波过来,电容相当于短路,电流突变,容易损坏
KP3310SGA的优点如下:
1、新颖的工作方式
2、极精简的外围, 无高压输入电解,电感等大体积器件
3、极简单的设计,可选的高精度±2%输出电压(芯片内置LDO)
4、完备的保护集成,集成650V MOS
B、分析KP3310的典型电路图,可以看出KP3310主要特点有:
1、超低系统成本:无电感、大电解设计
2、外围极简,典型电路只需3个器件
3、高精度±1% 5V输出
4、支持全压输入:85 - 305Vac
5、内置650V高压MOSFET
6、小于35mW待机
7、低纹波、低EMC噪声
8、内部集成完备的保护方式:短路保护(SLP),输出欠压保护(UVP),过热保护(OTP),雷击、浪涌保护
综上,推荐用创新开关电源KP3310方案去取代传统的阻容降压方案,同时必易微作为国内领先的ACDC设计厂家,会提供及时的技术支持,以及稳定的供货保障。
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产品型号
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品类
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封装
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拓扑电路
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最大功率(W)
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工作模式
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最高频率(kHz)
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输出特性
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启动方式
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能效标准
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待机功耗(mW)
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VDDmax(V)
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KP212
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PSR 控制器
|
SOT23-6
|
Buck/Flyback
|
65
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DCM
|
70
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CC&CV
|
电阻启动
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六级
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<75
|
30
|
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必易微(KIWI)IOT领域电源管理芯片产品介绍
描述- 本文介绍了必易微电子在IOT领域电源管理芯片的产品。内容包括公司基本信息、智能硬件系统构成、电源管理解决方案、五大核心技术、产品选型表等。重点介绍了必易微电子在高压700V混合BCD工艺、平台化产品、系统架构、高功率密度电源、超低待机、低功耗等方面的技术优势。
型号- KP2190,KP311AWPA,KP20H,KP3281DP,KP2191,KP4110-1-2,KP2192,KP212,KP86888,KP3116WPA,KP2501,KP86884,KP206A,KP216,KP3210BSGA,KP206B,KP214,KP3224DP,KP3205SGA,KP3310,KP3126SG,KP23111,KP2182,KP23110,KP101,KP201E-H,KP15026VPA,KP86888S,KP3110-2-4-6,KP201A-H,KP3116SGA,KP22306,KP322XDP,KP216X,KP15012SPA,KP23132M,KM8684NQ,KP3221DP,KP3282DP,KP15026,KP3310DPA,KP3210-1-2B,KP3211BDP,KP2201-B,KP2326,KM868X,KP1513,KP3114WPA,KP146X,KP2164,KP206A-B,KP2162,KP2202,KP3120SPA,KP2161,KP201,KP18026,KP15026WPA,KP3112LGA,KP214X,KP2182X,KP206,KP3114SGA,KM8688NQ,KP4055,KM8684NS,KP3126,KP226X,KP2061-4,KP23266,KP15014SPA,KP23264,KP4051,KP201-E-F,KP1511X,KP3210SGA,KP322X,KP201X,KP321ABSGA,KP3110,KP3222DP,KP1452,KP3221SG,KP4124X,KP2313X,KP201H,KP23133M,KP201F,KP18051ESPA,KP41242,KP3211BSGA,KP41240,KP41241,KP23152,KP15012-4,KP3210BDP,KP23151,KP201A,KP23150,KP1512X,KP201E,KP201B,KP201C,KP212X,KP36673-4,KP35015,KP3221SGA,KP2010,KP2131,KP3310SPA,KP3112SGA,KP2011,KP2132,KP2130,KP2012,KP2013,KP3284DP,KP3126SGA,KP18061ESPA,KP1315X,KP3110SPA,KP2126,KP4050-A,KP18055ESPA,KP2801,KP142X,KP1030,KP2120,KP2124,KP328X,KP2122,KP311ALGA,KP23133,KP18069,KP23132,KP3212BDP,KP226XH,KP41240-1-2,KP141X,KP401,KP2591,KP21821-2-4,KP206X
LED照明驱动产品介绍
描述- 本资料介绍了必易微电子的LED照明驱动产品,涵盖光源类、灯具类、调光类和辅电及恒压产品。产品包括新一代全集成方案、高PF非隔离产品、HPF CV BOOST、LPF QR FLYBACK、HPF CC BOOST、HPF 高精度CC BUCK、HPF 高精度CC BUCK等。资料详细介绍了各产品的特点、应用电路和性能参数。
型号- KP18001WPA,KP1079XWPA,KP15062SPA,KP421LGA,KP1271FNSPA,KP116SPA,KP15113SPA,KP1162SPA,KP1511SPA,KP1313X,KP14654DP,KP1271FCSPA,KP1191SPA,KP14653SPA,KP1222SPA,KP3310,KP10772WPA,KP1255,KP107LSPA,KP119SPA,KP1325SPA,KP3310DP,KP1505ASPA,KP1059BWPA,KP15026VPA,KP123X,KP1199BWPA,KP1466SPA,KP106,KP122SPA,KP1273FCSPA,KP13134DP,KP107W,KP119X,KP10790WPA,KP107L,KP15114DP,KP18011,KP1234SPA,KP18011ESPA,KP15026,KP1272FHSPA,KP15111SPA,KP1511,KP1059AWPA,KP107WSPA,KP15051SPA,KP1465SPA,KP10770WPA,KP4500,KP1077XWPA,KP1164MSPA,KP14663CSPA,KP107XL,KP15114SPA,KP1272FCSPA,KP1272FNSPA,KP13135DP,KP14652SPA,KP10792WPA,KP1192DP,KP18108WPA,KP18002FESPA,KP1079AWPA,KP1274FHSPA,KP1255SPA,KP1262FCWPA,KP1511X,KP1313LGA,KP3310SGA,KP1263FCWPA,KP1059CWPA,KP1466X,KP106SPA,KP1501AVPA,KP12353SPA,KP10791WPA,KP116X,KP14652DP,KP4213ESGA,KP1220SPA,KP127XFC,KP1274FNDP,KP421SPA,KP12762FWPA,KP127XFN,KP1192SP,KP1325,KP1501A,KP15052SPA,S4223,KP1193DP,KP126XFCWPA,KP15114HSPA,KP18062ESPA,KP1274FNSPA,KP1272FNDP,KP15062,KP14664MSPA,KP18106WPA,KP15064,KP1276XFWPA,KP1164SPA,KP18061ESPA,KP1274FCSPA,KP14653DP,KP1199AWPA,KP18055ESPA,KP123SPA,KP14651SPA,KP12761FWPA,KP4500SGA,KP1077AWPA,KP14662SPA,KP1805X,KP1261FCWPA,KP1806XWPA,KP14662CSPA,KP1059XWPA,KP1465X,KP1194DP,KP1221SPA,KP12354SPA,KP15064SPA,KP18053ESPA,KP10771WPA
KP3310 离线式、无电感交流输入线性稳压器
描述- 本资料介绍了KP3310离线式无电感交流输入线性稳压器,其具有高精度输出电压、宽输入电压范围、无需功率电感和高压电容等特点,适用于小家电电源和墙壁开关调光器等领域。
型号- KP3310
【产品】紧凑型无电感设计的离线式线性稳压器KP3310,5V/3.3V/2.7V输出电压
必易微电子推出的KP3310是一款紧凑型无电感设计的离线式线性稳压器,通过调整SEL管脚阻值,KP3310有5V/3.3V/2.7V三档输出电压可选,是一种简单可靠的获得偏置供电的离线式电源解决方案。
必易微LED芯片选型表
必易微提供以下技术参数LED产品的选型,MOS耐压:40V-600V,导通阻抗:0.25Ω-18Ω,工作模式:临界连续、开关、断续、Linear
产品型号
|
品类
|
Package
|
PF
|
MOSFET Rdson
|
MOSFET Vds
|
Isolated Non-Iso
|
Topology
|
OTP Internal
|
OVP Internal
|
OVP External
|
OCP
|
mini output voltage
|
Iout Vin=176-264Vac 72Vout
|
KP1054AVPA
|
LED芯片
|
SOP-4
|
0.5
|
18Ω
|
500V
|
Y
|
buck
|
Y
|
N
|
N
|
Y
|
15V
|
110mA
|
选型表 - 必易微 立即选型
【经验】必易微离线式线性稳压器KP3310实际设计中的5个注意事项
KP3310是必易微一款紧凑型无电感设计的离线式线性稳压器,外围极简,典型电路只需3个器件,本文将分享KP3310在实际设计中的5个注意事项。
电子商城
服务
可定制电感最大电流100A,尺寸最小7 x 7 x 3.0mm到最大35 x 34 x 15.5 mm,工作频率100KHZ ~ 2MHZ,感值范围:0.15 ~ 100uh;支持大功率电感,扁平线电感,大电流电感,高频电感,汽车电感器,车规电感,一体成型电感等定制。
最小起订量: 5000 提交需求>
可定制车载智能天线频率:20kHz、114.5 kHz、120- kHz、125 kHz、134 kHz、134.2kHz、134.5 kHz;工作温度范围:-40ºC to ~125ºC;电感范围:100~734;符合AEC-Q200(汽车质量标准)和IP68标准;
最小起订量: 1 提交需求>
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