The GL850G-22Y is a USB 2.0 Hub Controller manufactured by Genesys Logic. It provides a cost-effective and feature-rich solution for expanding the number of USB ports in various applications. This device supports high-speed (480Mbps), full-speed (12Mbps), and low-speed (1.5Mbps) USB devices.

Applications:

• USB Hubs: Used to create standalone USB hubs for connecting multiple devices.
• Motherboards: Integrated into computer motherboards to provide additional USB ports.
• Laptop Docks: Used in docking stations to expand USB connectivity for laptops.
• Embedded Systems: Integrated into embedded systems requiring USB host functionality.

Features:

• USB 2.0 Compliant: Supports high-speed (480Mbps), full-speed (12Mbps), and low-speed (1.5Mbps) operation.
• Four Downstream Ports: Provides connectivity for up to four USB devices.
• Integrated USB Transceivers: Includes built-in USB transceivers for signal transmission and reception.
• Individual Port Power Control: Allows for individual power management of each downstream port.
• Over-Current Detection: Protects against over-current conditions on each port.
• Self-Powered and Bus-Powered Operation: Supports both self-powered and bus-powered configurations.
• QFN Package: Compact QFN package for space-saving designs.

Benefits:

• Easy Integration: Simplifies USB hub design with integrated transceivers and power control.
• Cost-Effective: Provides a competitive solution for USB hub applications.
• Flexible Power Options: Supports both self-powered and bus-powered operation.
• Robust Protection: Over-current detection protects against damage to the hub and connected devices.
• High Performance: Ensures reliable data transfer rates for USB devices.

Additional Details:

The GL850G-22Y integrates all necessary components for a USB 2.0 hub, including the USB transceivers, upstream and downstream port controllers, and power management circuitry. This makes it a popular choice for manufacturers looking to add USB connectivity to their products. It supports both individual and gang modes for power management.

Technical Specifications:

• USB Standard: USB 2.0
• Number of Downstream Ports: 4
• Data Transfer Rate: 480 Mbps (High-Speed)
• Power Supply: 3.3V
• Operating Temperature: 0°C to 70°C
• Package: QFN