力芯微美林美深CC逻辑与PD协议IC ET7303替代RT1711H型号国产替代

在科技日新月异的今天，充电技术的革新无疑成为了推动设备便携性和性能提升的关键因素之一。作为这一领域的杰出代表，ET7303 USB Type-C及Power Delivery（PD）控制器凭借其卓越的性能和兼容性，正逐步成为众多高端电子设备中的核心组件。今天，我们就来深入解析这款革命性的产品，看看它如何引领充电技术的未来。
In today's ever-changing science and technology, the innovation of charging technology has undoubtedly become one of the key factors to promote the portability and performance of equipment. As an outstanding representative in this field, ET7303 USB Type-C and Power Delivery (PD) controllers are becoming the core components in many high-end electronic devices due to their outstanding performance and compatibility. Today, we will take a closer look at this revolutionary product and see how it leads the future of charging technology.

一、ET7303概述
ET7303是一款集USB Type-C和Power Delivery（PD）功能于一体的控制器，它全面遵循USB Type-C™ 1.2和Power Delivery（PD 2.0）规范。这款控制器不仅支持Type-C端口控制接口（TCPCi），还集成了完整的Type-C收发器，包括Type-C终端电阻Rp和Rd，能够实现USB Type-C的检测功能，包括连接和方向识别。
The ET7303 is an integrated USB Type-C and Power Delivery (PD) controller that fully complies with the USB Type-C™ 1.2 and Power Delivery (PD 2.0) specifications. This controller not only supports the Type-C port Control Interface (TCPCi), but also integrates a complete Type-C transceiver, including Type-C terminal resistors Rp and Rd, which can realize the detection function of USB Type-C, including connection and direction recognition.

二、Type-C收发器集成与检测功能
ET7303内置的Type-C收发器是其核心亮点之一。这款收发器不仅包括了必要的终端电阻，还具备强大的检测能力。当设备通过Type-C接口连接时，ET7303能够迅速识别连接的方向和状态，确保数据传输和充电功能的正常进行。这一特性使得ET7303在智能手机、平板电脑等需要频繁插拔和连接的设备中表现出色。
The ET7303's built-in Type-C transceiver is one of its core highlights. This transceiver not only includes the necessary terminal resistance, but also has powerful detection capabilities. When the device is connected through the Type-C interface, the ET7303 can quickly recognize the direction and status of the connection, ensuring the normal data transmission and charging functions. This feature makes the ET7303 excellent in devices that need to be plugged in and connected frequently, such as smartphones and tablets.

三、USB PD物理层集成与功率支持
除了Type-C收发器外，ET7303还集成了USB PD协议的物理层，支持最高100W的功率传输和角色切换。这意味着，通过ET7303，设备可以在不同的充电模式下自由切换，无论是作为充电源还是充电设备，都能实现高效、安全的充电体验。这一特性对于需要高功率充电的笔记本电脑、平板电脑等设备尤为重要。
In addition to the Type-C transceiver, the ET7303 integrates the physical layer of the USB PD protocol, supporting power transfer and role switching up to 100W. This means that with the ET7303, the device can freely switch between different charging modes, whether as a charging source or charging device, enabling an efficient and safe charging experience. This feature is particularly important for devices such as laptops and tablets that require high power charging.

四、BMC PD块与Type-C规范支持
ET7303中的BMC PD块（Battery Management Controller Power Delivery）是其另一大亮点。这一模块不仅支持USB PD协议，还全面兼容Type-C规范中的替代接口。这意味着，通过ET7303，设备可以无缝连接并识别各种Type-C接口的配件和设备，如显示器、外接硬盘等，实现更加灵活和便捷的连接体验。
The BMC PD block (Battery Management Controller Power Delivery) in the ET7303 is another highlight. This module not only supports the USB PD protocol, but is also fully compatible with alternative interfaces in the Type-C specification. This means that with the ET7303, devices can seamlessly connect and recognize various Type-C interface accessories and devices, such as displays, external hard drives, etc., for a more flexible and convenient connection experience.

五、PD兼容双角色支持与功能特性
ET7303不仅支持USB PD2.0和TCPC1.0规范，还具备一系列实用的功能特性：

CC Pin 28V短路VBUS电路保护：当CC引脚发生短路时，ET7303能够迅速切断VBUS电路，防止设备损坏。
VCONN提供者路径与可编程过流/过压保护：ET7303提供了VCONN电源路径，并支持可编程的过流和过压保护功能，确保设备在连接和充电过程中的安全性。
VBUS路径辅助放电：当设备不再需要充电时，ET7303能够辅助VBUS路径放电，降低待机功耗。
电流能力定义与检测：ET7303能够准确检测并定义设备的电流能力，确保充电过程中的兼容性和安全性。
电缆识别和替代模式支持：通过内置的电缆识别功能，ET7303能够识别并支持各种Type-C电缆和替代模式，如DisplayPort Alt Mode等。
无电池/死电池支持：即使设备处于无电池或电池电量耗尽的状态，ET7303也能通过其特殊的充电管理功能，确保设备能够正常充电并启动。
低功耗模式用于连接检测：为了降低待机功耗，ET7303提供了低功耗模式，仅在需要时激活连接检测功能。
BIST模式支持：ET7303还支持BIST（内建自测试）模式，方便用户在生产过程中对设备进行快速测试和验证。
ET7303 not only supports USB PD2.0 and TCPC1.0 specifications, but also has a series of practical features:
CC Pin 28V Short Circuit VBUS circuit protection: When CC pin short circuit occurs, ET7303 can quickly cut off the VBUS circuit and prevent equipment damage.
VCONN Provider Path and programmable overcurrent/overvoltage protection: The ET7303 provides VCONN power path and supports programmable overcurrent and overvoltage protection to ensure device security during connection and charging.
VBUS path assist discharge: When the device no longer needs to be charged, the ET7303 can assist VBUS path discharge to reduce standby power consumption.
Current capability definition and detection: The ET7303 accurately detects and defines the current capability of the device to ensure compatibility and safety during charging.
Cable recognition and alternative Mode support: With the built-in cable recognition function, the ET7303 is able to recognize and support a variety of Type-C cables and alternative modes, such as DisplayPort Alt Mode.
Battery-free/dead battery support: Even if the device is in a battery-free or battery-depleted state, the ET7303 ensures that the device can be charged and started properly through its special charge management function.
Low power mode for connection detection: To reduce standby power consumption, the ET7303 offers a low power mode that activates connection detection only when required.
BIST mode support: The ET7303 also supports the BIST (build-in-Self-test) mode, which allows users to quickly test and verify devices during production.

六、WLCSP9封装与MSL1等级
ET7303采用了WLCSP9（晶圆级芯片规模封装）技术，使得其体积更加小巧、集成度更高。同时，该控制器还达到了MSL1（湿度敏感性等级1）标准，这意味着在生产和存储过程中，ET7303对湿度的敏感性较低，有利于降低生产成本和提高生产效率。
The ET7303 uses WLCSP9 (wafer-scale Chip-scale package) technology, making it smaller and more integrated. At the same time, the controller also meets the MSL1 (humidity sensitivity Class 1) standard, which means that the ET7303 is less sensitive to humidity during production and storage, which is conducive to reducing production costs and improving production efficiency.

七、广泛应用领域
凭借其卓越的性能和兼容性，ET7303在多个领域得到了广泛应用：

移动电源：ET7303支持的高功率充电和智能充电管理功能，使得移动电源能够为用户提供更加高效、安全的充电体验。
平板电脑：通过ET7303，平板电脑可以实现快速充电和与各种Type-C配件的无缝连接，提升用户的使用体验。
笔记本电脑/笔记本电脑：对于需要高功率充电和高效数据传输的笔记本电脑而言，ET7303无疑是最佳选择。它不仅能够满足设备的充电需求，还能实现与显示器、外接硬盘等设备的便捷连接。
显示器/电视：通过Type-C接口和ET7303的支持，显示器和电视可以方便地连接各种Type-C设备，如智能手机、平板电脑等，实现数据传输和充电功能。
Mobile power: The high power charging and intelligent charge management functions supported by the ET7303 enable mobile power to provide users with a more efficient and safe charging experience.
Tablets: With the ET7303, tablets can achieve fast charging and seamless connection with various Type-C accessories, enhancing the user experience.
Laptop/laptop: The ET7303 is undoubtedly the best choice for laptops that require high power charging and efficient data transfer. It can not only meet the charging needs of the device, but also realize the convenient connection with the display, external hard disk and other devices.
Monitor/TV: Through the Type-C interface and ET7303 support, monitors and TVS can be easily connected to a variety of Type-C devices, such as smartphones, tablets, etc., to achieve data transmission and charging functions.

审核编辑 黄宇