【元件】 顺络新品功率电感MPHM160809系列,具备优异抗干扰、防耦合和漏磁性能,适用于TWS等智能穿戴领域


2022年TWS耳机出货量已达2.877亿台,占个人音频总出货量的68%,TWS耳机对电子元件的需求量庞大。在TWS耳机中,为了能够实现“随叫随到”的优质用户体验,众多功能在未使用时多处于待机状态,待机状态会持续消耗续航,可见续航是TWS耳机一项重要的参数指标。为了提高待机效率,需要用到开关型DC/DC电源芯片进行电源转换,而开关型DC/DC电源转换芯片的外围都需搭配一颗功率电感器作为储能器件。
因此,根据不同产品的功能应用以及不同主平台的集成度差异,单个耳机内需要2-4颗功率电感。鉴于TWS的构造,无线耳机的电源电路中的功率电感需要具备较小的尺寸和中等大小(数百mA)的额定电流,并且要求电感低损耗,以实现高转换效率和强的续航能力。顺络这次推出的MPHM系列不仅在电性能上能满足TWS耳机对功率电感的要求,其独特的制备工艺使该系列在价格方面也有很强的竞争力。
MPHM160809系列是在顺络成熟的叠层平台上研发出的新产品,新品MPHM系列有以下的几个特点:
●针对高密度贴装的电路,MPHM系列产品呈现优异的抗干扰/防耦合、漏磁的性能;
●产品外形设计有Mark标识磁通方向,可以保证贴片后磁场方向一致;
●大额定电流、高可靠性、DCR等优异的电性能;
●满足主流的功率要求,采用叠层工艺,为客户提供高性价比的产品。
产品特点
●超大电流、低DCR
●Mark标识磁通方向
●全磁屏蔽
●极低漏磁
●独石结构
应用
●TWS耳机
●智能手表、电子标签
●手机
●电源模块
外观尺寸及推荐焊盘
图 1
产品型号
图 2
主要产品规格和电气特性
表 1
※□: Please specify the inductance tolerance code (M=±20%, N=±30%);
※Rated current: Isat or Irms, whichever is smaller;
※Isat: DC current at which the inductance drops approximate 30% from its value without current;
※Irms: DC current that causes the temperature rise (△T =40°C) from 20°C ambient.
MPHM160809系列
Inductance vs. Frequency Characteristics
图 3
Inductance vs. DC Current Characteristics
图 4
Inductance vs. Frequency Characteristics
图 5
Inductance vs. DC Current Characteristics
图 7
应用案例
MPHM应用于TWS的场景
图 8
推荐型号如下
表 2
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