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数据模块提供了USB设计数据和电源隔离

关键词:数据隔离器模块 USB设计数据 NMUSB202MC

时间:2015-06-01 17:23:53      来源:中电网

 
国际即时新闻(原文:英文)

Data module provides data and power isolation in USB designs

Dual port USB data and power isolation is provided by the NMUSB202MC, a surface mount, data isolator module from Murata.
It provides dual port USB data and power isolation from a single upstream port with full power (500mA) available from each port. Used with a host controller, a single module counts as two USB hubs for cascaded applications. The level of safety isolation additionally provides effective breaking of ground loops and immunity to EMI in harsh environments.

The module is aimed at industrial control applications where USB is becoming increasingly common for communications with sensors. It can also be used in medical environments, where USB for sensing and communication is used for safety and noise immunity.

Full USB speed operation of 12Mbit/s is supported, limited by the data isolation chipset. The module is also able to switch automatically between 1.5Mbit/s and full speed operation, as the application requires.
The module complies with USB 2.0 specification. Full power, 5V/0.5A, is available from each downstream port and any USB-compatible device can be powered from the module. The ports are short circuit and overload-protected. The source power of 5V can be provided by an external adapter or system voltage rail.
The reinforced safety isolation barrier meets the requirements of 250V AC systems in IT and medical environments. It operates at the industrial temperature range of -40 to +85°C.









中文自动翻译,供参考

数据模块提供了USB设计数据和电源隔离

双端口的USB数据和电源隔离由NMUSB202MC,表面安装,从村田数据隔离器模块提供。
它提供了双端口USB数据和电源隔离与全功率(500毫安)一个上行端口可从每个端口。用于与主机控制器,单个模块算作两个USB集线器级联应用。安全隔离级别还提供接地回路和免疫力的有效破为EMI在恶劣的环境中。

该模块的目的是在工业控制应用中的USB越来越普遍用于与传感器通信。它也可以用在医疗环境中,其中,USB用于感测和通信,用于安全和抗噪性使用。



支持一个12Mbit / s的全USB速度运转,受限于数据隔离芯片组。该模块还能够1.5Mbit / s和全速操作之间自动切换,作为应用需要。

该模块符合USB 2.0规范。全功率,5V / 0.5A,可从每一下游端口,任何USB兼容的设备可以从模块供电。端口是短路和过载的保护。 5V的源功率可通过外部适配器或系统电压轨道提供。

增强安全隔离屏障满足250V AC系统,IT和医疗环境的要求。它工作在-40至+ 85℃工业温度范围。

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