<p><span>【</span><span>2019<span> </span></span><span>年</span><span><span> </span>12<span> </span></span><span>月</span><span><span> </span>12<span> </span></span><span>日美国德州普拉诺讯】</span><span>Diodes<span> </span></span><span>公司</span><span><span> </span>(Nasdaq</span><span>：</span><span>DIOD)<span> </span></span><span>今日宣布推出热门发声器驱动器的增强版</span><span>，</span><span>以因应小型和便携设备的需求。</span><a href="https://www.diodes.com/part/PAM8904E%22%20/h"><span>PAM89</span><span>0…，能够在较低电压的情况下提供更高效能。</span></p>
<p><span>微型压电和陶瓷发声器现在能以音频用户接口的形式</span><span>，</span><span>广泛用于追踪器、警报器、健康监测器、安全装置和智能传感器等产品应用。这种发声器体积小巧，能够安装在具备物联网功能的追踪器等可携式和穿戴式装置上，也能够支持监控环境的微型智慧传感器，包括安全侦测器、漏水警报器、烟雾警报器与二氧化碳警报器。</span><span>PAM8904E<span> </span></span><span>发声器驱动器经过精心设计，旨在满足以极低电压运作最小型应用的需求。</span></p>
<p><span>PAM8904E<span> </span></span><span>仅需极少的外部组件</span><span>，</span><span>便可支持单端及差分输出模式。该装置拥有</span><span><span> </span>1.5V<span> </span></span><span>至</span><span><span> </span>5.5V<span> </span></span><span>的宽广输入电压供电范围，且关断电流消耗不超过</span><span><span> </span>1µA</span><span>。另外，该款发声器还可接收介于</span><span><span> </span>20Hz<span> </span></span><span>至</span><span><span> </span>300kHz<span> </span></span><span>间的输入讯号。尽管体积不大，</span><span>PAM8904E<span> </span></span><span>仍整合能以</span><span><span> </span>1<span> </span></span><span>倍、</span><span>2<span> </span></span><span>倍和</span><span><span> </span>3<span> </span></span><span>倍模式运作的电荷</span><span>泵</span><span>升压转换器。因此，</span><span>PAM8904E<span> </span></span><span>可在</span><span><span> </span>3V<span> </span></span><span>的供应电压下产生高达</span><span><span> </span>18V<span> </span></span><span>峰值的输出电压，或是在</span><span><span> </span>4.5V<span> </span></span><span>的供电下产生</span><span><span> </span>27V<span> </span></span><span>峰值的输出电压。</span></p>
<p><span>这款增强版产品现在能够驱动高达</span><span><span> </span>47nF<span> </span></span><span>的发声器负载</span><span>，</span><span>远高于他牌装置的驱动能力。许多他牌装置通常只能驱动</span><span><span> </span>15nF<span> </span></span><span>的负载，且所需供应电压也较高。除了上述优势外，</span><span>PAM8904E<span> </span></span><span>还具备过热关闭、过电流保护、短路保护、自动关断和唤醒系统等功能，有助于延长电池供电装置的使用寿命。</span></p>
<p><span>PAM8904EGPR<span> </span></span><span>采用</span><span><span> </span>W-QFN2020-12 A<span> </span></span><span>型封装</span><span>，</span><span>尺寸为</span><span><span> </span>2.00 mm × 2.00 mm (</span><span>宽</span><span>) × 0.80 mm (</span><span>高</span><span>)</span><span>。其他封装选项包括</span><span><span> </span>U-QFN3030-12 A<span> </span></span><span>型</span><span><span> </span>(PAM8904EJPR)</span><span>，以及</span><span><span> </span>U-QFN3030-16 (PAM8904EJER)</span><span>。</span></p>
<p><span>详细信息请参阅</span><span><span> </span></span><a href="http://www.diodes.com/"><span>www.diodes.com</span></a><span>。</span></p>
<p><span>关于</span><span><span> </span>Diodes Incorporated</span></p>
<p><span>Diodes</span><span>公司</span><span>（</span><span>纳斯达克股票代码</span><span>：</span><span>DIOD</span><span>）</span><span>是一家标准普尔小盘</span><span>600</span><span>（</span><span>Standard and Poor’s SmallCap 600</span><span>）</span><span>和罗素</span><span>3000</span><span>（</span><span>Russell 3000</span><span>）</span><span>指数公司</span><span>，</span><span>该公司是一家为广泛的分立、逻辑、模拟和混合讯号半导体市场提供高质量专用标准产品之全球领先制造商和供货商。</span><span>Diodes</span><span>服务于消费性电子、计算、通讯、工业和汽车市场。公司产品包括二极管、整流器、晶体管、</span><span>MOSFET</span><span>、保护器件、特定功能数组、单闸极逻辑、放大器和比较器、霍尔效应和温度传感器、电源管理器件</span><span>——</span><span>包括</span><span>LED</span><span>驱动器、</span><span>AC-DC</span><span>转换器和控制器、</span><span>DC-DC</span><span>切换式和线性稳压器，以及电压基准和特殊功能器件，如</span><span>USB</span><span>电源开关、负载开关、电压监控器和马达控制器。</span><span>Diodes<span> </span></span><span>亦提供频率、连接、切换以及针对高速讯号的讯号完整性解决方案。</span><span>Diodes</span><span>的公司总部和美洲销售办事处位于得克萨斯州普莱诺市和加利福尼亚州米尔皮塔斯市。设计、市场和工程中心位于普莱诺、米尔皮塔斯、台北、桃园、竹北、英国曼彻斯特和德国诺伊豪斯。</span><span>Diodes</span><span>晶圆制造厂位于曼彻斯特、中国上海和苏格兰格里诺克。</span><span>Diodes</span><span>在中国上海、济南、成都和扬州以及香港、诺伊豪斯和台北还有多家封测厂。公司其他工程、销售、仓库和物流办事处位于台北、香港、曼彻斯特、上海、中国深圳、韩国城南市、德国慕尼黑和日本东京，此外，其在世界各地还设有多家支持办事处。</span></p>