USB3503T/ML

Product Overview

• Category: USB Controller
• Use: The USB3503T/ML is a high-speed USB 2.0 hub controller designed for embedded applications.
• Characteristics: It provides a flexible and cost-effective solution for adding USB ports to various devices. The USB3503T/ML supports up to three downstream ports and is compatible with both low-speed and full-speed USB devices.
• Package: The USB3503T/ML comes in a small form factor package, making it suitable for space-constrained designs.
• Essence: The essence of the USB3503T/ML lies in its ability to expand the number of USB ports available on a device while maintaining high-speed data transfer rates.
• Packaging/Quantity: The USB3503T/ML is typically sold in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

• Interface: USB 2.0
• Number of Ports: 3 downstream ports
• Compatibility: Low-speed and full-speed USB devices
• Operating Voltage: 3.3V
• Operating Temperature: -40°C to +85°C
• Package Type: QFN (Quad Flat No-Lead)
• Dimensions: 5mm x 5mm

Detailed Pin Configuration

The USB3503T/ML features the following pin configuration:

1. VBUS
2. D+1
3. D-1
4. D+2
5. D-2
6. D+3
7. D-3
8. GND
9. XTAL
10. XTAL_OUT
11. RESET#
12. SDA
13. SCL
14. INT#
15. SUSPEND#
16. ID
17. NC
18. NC
19. NC
20. VDD33

Functional Features

• High-speed USB 2.0 hub controller
• Supports up to three downstream ports
• Low-power consumption
• Integrated power management features
• Over-current protection for each port
• Hot-plug support
• Automatic device recognition and configuration

Advantages and Disadvantages

Advantages: - Compact form factor - Cost-effective solution for adding USB ports - High-speed data transfer rates - Power management features - Over-current protection

Disadvantages: - Limited number of downstream ports (up to three) - Only compatible with low-speed and full-speed USB devices

Working Principles

The USB3503T/ML operates by receiving USB data from the host device and distributing it to the connected downstream devices. It manages the data transfer, power distribution, and device recognition processes. The integrated power management features ensure efficient power usage and prevent overloading of the USB ports.

Detailed Application Field Plans

The USB3503T/ML is commonly used in various embedded applications that require additional USB connectivity. Some potential application fields include:

1. Consumer Electronics: Adding USB ports to smart TVs, set-top boxes, and gaming consoles.
2. Industrial Automation: Integrating USB connectivity into industrial control systems and machinery.
3. Automotive: Enabling USB connectivity in car infotainment systems and dashboard controls.
4. Medical Devices: Incorporating USB ports into medical equipment for data transfer and device connectivity.
5. IoT Devices: Enhancing the connectivity options of IoT devices such as smart home hubs and wearable devices.

Alternative Models

• USB3503T/MLR: Similar to USB3503T/ML but with extended temperature range (-40°C to +105°C).
• USB3503T/MLG: Similar to USB3503T/ML but with green packaging for environmental compliance.

In conclusion, the USB3503T/ML is a high-speed USB 2.0 hub controller that provides a cost-effective solution for adding USB ports to various embedded applications. Its compact form factor, power management features, and compatibility with low-speed and full-speed USB devices make it a versatile choice for designers.