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RT8979 由 USB 埠附件检测器和 USB1、USB2、UART 和 MHL 选择开关构成,它含有 I<SUP>2</SUP>C 控制介面和确定连接外设所属类型的多种检测方法。</br>RT8979 通过对 USB 介面 ID 引脚状态和 VBUS 电压的检测来完成对外接附件的检测,ID 引脚的阻抗和 VBUS 电压的不同确定了不同的附件来源。作为主控制器的 MCU 通过 I<SUP>2</SUP>C 介面可对开关位置进行控制,也通过它来读取附件检测的结果。RT8979 也可检测不同的充电器类型,其中包括专用充电器(它们的 D+/D- 处于短路状态)和大功率的主机/集线器充电器。
RT8979 电路图
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productDetailSection
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orderingInformationSection
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designToolSection
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supportSection
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i18n(tabs.product-detail.title)
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i18n(tab-item.product-feature-section.title)
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<div class="spec-list"><ul class="lv1"><li>支援高速 USB 应用(USB1 和 USB2) </li><li>UART 和 MHL 切换开关 </li><li>附件插、拔中断提醒 </li><li>支援工厂模式 </li><li>28V 耐压 </li><li>I<sup>2</sup>C 控制介面 </li><li>DP_CON/DM_CON 端子集成 TVS 二极体,保护能力达 ±15V </li><li>ID_CON 端子集成 TVS 二极体,保护能力达 ±20V </li><li>支持 USB BC1.2 </li></ul></div>
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RT8979 订购信息
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RT8979
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RT8979
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<div class="spec-list"><ul class="lv1"><li>移动应用 </li><li>智慧手持设备 </li><li>平板电脑 </li></ul></div>
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