Evaluation Board Microchip EVB-USB2534
The SMSC USB2534 is a Low-Power, Full-Featured, OEM configurable, Hi-Speed USB 2.0 compliant hub with four downstream ports, each capable of supporting battery charging.
Detailed Description
The EVB-USB2534BC-01 Revision B Evaluation Board demonstrates a standalone hub application with the features listed below, advanced power saving options, and configurable port assignments.
Features
- 36-pin QFN RoHS compliant package.
- Four USB 2.0 downstream hub ports with individual port power and over-current sense (OCS).
- Hi-Speed (480 Mbps), Full-Speed (12 Mbps), and Low-Speed (1.5 Mbps) compatible.
- USB Battery Charging is supported on all downstream USB ports up to 2 A.
- Multi-Transaction Translator is enabled.
- Supports internal default hub configuration. Optionally supports configuration from external EEPROM.
- Low cost 4-Layer space saving design with two outer signal layers, a power inner layer, and a ground inner layer.
- Individual port over-current sensing.
- Individual port power control with LEDs for port power indication.
- Self-powered operation.
- Operates from a single voltage (12.0 VDC, regulated) external power supply.
- External supply provides up to 6 A of 5.0 VDC for system use and USB downstream power through an onboard 5 VDC regulator.
- Onboard MCP1725 3.3 VDC regulator provides power to the USB2534 circuits and RESETn control.
- LED indicator for “Suspend” hub state (optional).
- EMI suppression provided by selection of capacitors and inner power/ground PCB layers.
- ESD component footprints provided (optional).
- Single crystal clock source.
- Schematics, layout, and bill of materials are available to minimize new product development time.
The EVB-USB2534BC-01 is an evaluation and demonstration platform featuring the USB2534 USB 2.0 Hub on a 4-layer RoHS compliant printed circuit board. The EVB-USB2534BC-01 is designed to demonstrate the unique features of this device using a low-cost PCB implementation with individual port power control for the downstream USB 2.0 ports. All downstream USB 2.0 ports include a high current port power controller to fully support USB battery charging as a high current walk up port. (Note: Do not exceed 6 A total current consumption from 5 VDC.)
The EVB-USB2534BC-01 is designed to support internal default configuration settings and an external I2C EEPROM (optional) for custom configured functionality.
Other Names:
EVBUSB2534, EVB USB2534
