【应用】EPC超小尺寸eGaN FET，助力推动医疗应用市场迅猛发展

时间： 2018-05-28 来源：EPC

技术问答

EPC（宜普电源转换公司）是基于增强型氮化镓的功率管理器件领先供应商。半导体技术的发展引领医疗应用市场新发展。具备高频、高速开关及小尺寸等优势的氮化镓器件正在推动全新应用的发展，包括无线电源传输应用。目前由氮化镓技术推动的应用发展迅猛，例如医疗成像、诊断技术及人体移植器件。

EPC推出的EPC2107是增强型氮化镓FET，具有极小的芯片尺寸: 1.35mm x 1.35mm，具有高开关频率，高能量效率的特点，在医疗应用中可以应用于对患者体内的移植器件进行无线充电，包括假肢、神经刺激器和心脏起搏器等。在面向移植器件的应用中，eGaN FET的开关速度实现了对设备进行无线电源充电，减省了需要穿过皮肤层的电源线、降低死亡率而同时使患者于医疗期间，保持良好的生活质量。

图1：EPC2017可应用于移植器件的无线充电

EPC推出的EPC8004是增强型氮化镓FET，R_DS(on)仅为110mΩ，裸片尺寸仅为2.1mm x 0.8mm，具有超高能量效率和超小封装的特点。EPC8004应用于核磁共振接收线圈，由于eGaN FET提供改善了的扫描速度，因此可以使用更多线圈，从而减少对磁场的干扰，以及降低成像设备的整体功耗。

图2：EPC8004可应用于MRI扫描仪

EPC推出的EPC2012C是增强型氮化镓FET，芯片尺寸仅为1.7 mm x 0.9 mm，V_DS为200 V，R_DS(on)为100 mΩ。EPC2012C可应用于非侵入性“结肠镜检查丸”，包含一个微型X射线机，在摄入后创建了一个3-D肠道通过患者消化系统时的图像。具备高频开关性能的eGaN FET提高基于X光的诊断系统的性能，而FET所采用的超小型芯片规模封装能够实现高功率密度。

图3：非侵入性“结肠镜检查丸”

EPC推出的EPC2039是增强型氮化镓FET，V_DS为 80 V，R_DS(on)为25 mΩ，芯片尺寸仅为1.35 mm x 1.35 mm。EPC2039是具备小巧尺寸、散热效率及高频开关等优势的氮化镓器件，为医疗应用的机械仪器提供具有极高分辨率的马达控制。

图4：EPC2039可应用于医疗机械

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