产品特性

• Port power switch with two current limit behaviors 2.9 V to 5.5 V source voltage range Up to 2.7 A current with 55 mΩ On Resistance Over-current trip or constant current limiting Soft turn-on circuitry Programmable current limit Dynamic thermal management Under- and over-voltage lockout Back-drive, back-voltage protection Latch or auto-recovery (low test current) fault handling Selectable active high or low power switch enable BC1.2 VBUS discharge port renegotiation function
• 2.9 V to 5.5 V source voltage range
• Up to 2.7 A current with 55 mΩ On Resistance
• Over-current trip or constant current limiting
• Soft turn-on circuitry
• Programmable current limit
• Dynamic thermal management
• Under- and over-voltage lockout
• Back-drive, back-voltage protection
• Latch or auto-recovery (low test current) fault handling
• Selectable active high or low power switch enable
• BC1.2 VBUS discharge port renegotiation function
• Selectable/automatic cycling of USB data line charger emulation profiles Supports 12W charger emulation Allows for active cables USB-IF BC1.2 charging downstream port (CDP) and dedicated charging port (DCP) modes, YD/T-1591, and most Apple®, Samsung and RIM® protocols standard; others as defined via the SMBus 2.0/I2C® USB 2.0 compliant high-speed data switch (in Passthrough and CDP modes) Nine preloaded charger emulation profiles for maximum compatibility coverage of peripheral devices One custom programmable charger profile for portable device support for fully host controlled charger emulation** Custom Emulation profile uses unique stimulus and response method useful for future profiles**
• Supports 12W charger emulation
• Allows for active cables
• USB-IF BC1.2 charging downstream port (CDP) and dedicated charging port (DCP) modes, YD/T-1591, and most Apple®, Samsung and RIM® protocols standard; others as defined via the SMBus 2.0/I2C®
• USB 2.0 compliant high-speed data switch (in Passthrough and CDP modes)
• Nine preloaded charger emulation profiles for maximum compatibility coverage of peripheral devices
• One custom programmable charger profile for portable device support for fully host controlled charger emulation**
• Custom Emulation profile uses unique stimulus and response method useful for future profiles**
• Self-contained current monitoring and charge rationing for power allocation applications
• Automatic shutdown when Battery Full option
• Low power Attach Detection and open-drain A_DET# pin (not in UCS1003-2)
• Charge active signal (UCS1003-2 only)
• Ultra low power Sleep state
• Optional split supply support for VBUS and VDD for low power in system standby states
• Wake on Attach USB
• SMBus 2.0/I2C communications Supports Block Write and Read Multiple SMBus addresses
• Supports Block Write and Read
• Multiple SMBus addresses
• Wide operating temperature range: -40°C to +85°C
• IEC61000-4-2 8 / 15 kV ESD immunity
• Notebook and Netbook Computers
• Tablets and E-book Readers
• Desktops and Monitors
• Docking Stations and Printers
• AC-DC wall adapters

技术参数