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Microchip USB333x / USB334x USB 2.0 Transceivers
Microchip USB333x / USB334x Hi-Speed USB 2.0 transceivers deliver enhanced USB functionality for the portable market with support for the latest USB-IF Battery Charging 1.1 (BC 1.1) specification. This Microchip family of USB 2.0 devices provides three times the charging current through a USB port over traditional solutions. It also dramatically reduces system bill-of-material (BOM) costs over competitive solutions. The new USB333x / USB334x provides an excellent compliment to USB charging ports by enabling portable devices to negotiate up to three times the charging current compared to a standard USB port, resulting in faster battery charging. USB333x / USB334x USB 2.0 transceivers come in small footprint packages that reduce the number of external components through the integration of voltage regulators and other discretes.
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Features
- Highly integrated, Hi-Speed USB 2.0 transceivers:
- Integrated VBUS over-voltage protection (up to +30V)
- Integrated USB switch enables connector as a single port for data, charging, and audio
- Supports wide variety of common reference clock frequencies
- Ultra-low standby current
- "Wrapper-less" architecture for optimized timing performance
- Link Power Management
- flexPWR technology provides extremely low power consumption
Benefits
- Eliminates need for external regulators
- Eliminates need for costly external OVP IC
- Lower BOM part count, smaller PCB footprint area
- Longer battery life and variable I/O voltage capability
Applications
- Digital Cameras/Video Cameras
- Smartphones and Cell Phones
- GPS Personal Navigation Devices
- MP3 Players
- External Hard Disk Drives
- Gaming Consoles
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Block Diagram
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