The GL850G-OHY31 is a USB 2.0 Hub Controller manufactured by Genesys Logic. This chip is designed to expand a single USB port into multiple USB 2.0 ports, allowing users to connect more USB devices to their computer or other host device. It's a highly integrated solution offering robust performance and power efficiency for various applications.

Applications:

• USB Hubs: Used as the central controller in external USB 2.0 hubs.
• Docking Stations: Integrated into docking stations to provide expanded USB connectivity.
• Embedded Systems: Employed in embedded systems that require multiple USB ports.
• Computer Peripherals: Found in devices like keyboards, mice, and monitors to provide additional USB ports.
• Industrial Control Systems: Used in industrial control systems for connecting USB-based devices.

Features:

• USB 2.0 Compliant: Supports high-speed (480Mbps), full-speed (12Mbps), and low-speed (1.5Mbps) data transfer rates.
• Four Downstream Ports: Provides connectivity for up to four USB devices.
• Integrated USB Transceivers: Simplifies design and reduces external component count.
• Automatic Transaction Translator (TT): Ensures efficient data transfer between different USB speeds.
• Power Management: Supports power saving modes to reduce power consumption.
• Over-Current Protection: Protects the hub and connected devices from over-current conditions.

Benefits:

• Increased USB Connectivity: Expands the number of available USB ports.
• High-Speed Data Transfer: Supports fast data transfer rates for USB 2.0 devices.
• Power Efficiency: Reduces power consumption through power management features.
• Robust Protection: Protects the hub and connected devices from electrical damage.
• Simplified Design: Integrated transceivers simplify design and reduce BOM cost.

Technical Specifications:

The GL850G-OHY31 typically operates from a 3.3V power supply. It supports both bus-powered and self-powered modes. It's commonly available in a QFN package. The operating temperature range is usually from 0°C to +70°C. For specific details about pinout, power consumption, and other parameters, consult the official datasheet from Genesys Logic.