Microchip USB84604AFT-B-001080-V02 USB 2.0 Hub Controller: Technical Specifications and Application Note
The Microchip USB84604AFT-B-001080-V02 is a highly integrated, four-port USB 2.0 hub controller designed to provide robust and flexible connectivity solutions for a wide range of computing and embedded systems. This hub controller supports both low-speed (1.5 Mbps), full-speed (12 Mbps), and high-speed (480 Mbps) USB data rates, ensuring backward compatibility with a vast ecosystem of USB peripherals.
A key architectural feature of this controller is its support for multiple downstream port configurations, allowing designers to implement a mix of four external, internal, or even non-removable ports to meet specific system design requirements. This flexibility is crucial for tailoring the hub to different product form factors and user experiences.
The device incorporates an advanced battery charging support functionality. It is compliant with the USB Battery Charging Specification Revision 1.2, enabling it to detect and provide enhanced charging current to connected portable devices such as smartphones and tablets, even when the host computer is in a low-power state or turned off. This makes it an ideal solution for docking stations and charging hubs.
From a system integration perspective, the USB84604 offers several critical advantages. It features an integrated 5V to 3.3V and 1.2V voltage regulator, which significantly simplifies the power supply design by reducing the number of external components required. Furthermore, its industrial temperature range (-40°C to +85°C) ensures reliable operation in demanding environments beyond typical consumer applications.
For enhanced system security and management, the hub supports individual or ganged power switching and over-current protection for each downstream port. This allows the host to monitor power consumption on a per-port basis and safely manage connected devices, preventing damage from fault conditions.
In application, the USB84604 is perfectly suited for a diverse set of products. Its primary applications include multi-port desktop and notebook docking stations, industrial PC and automation control systems, gaming consoles and VR setups, and smart displays and interactive kiosks. The hub's ability to handle high-bandwidth traffic from multiple devices simultaneously makes it a reliable core for expanding USB connectivity.
Development and integration are streamlined through Microchip's comprehensive software utilities, which allow for easy customization of parameters such as vendor IDs, product IDs, and port behaviors.
ICGOO In summary, the Microchip USB84604AFT-B-001080-V02 stands out as a versatile and high-performance USB 2.0 hub controller. Its integration of critical features like battery charging support, internal regulators, and robust port management makes it a superior choice for designers seeking to add reliable, high-speed USB expansion to their products while minimizing design complexity and component count.
Keywords:
1. USB 2.0 Hub Controller
2. Battery Charging Support
3. Downstream Port Configuration
4. Industrial Temperature Range
5. Over-Current Protection
