Status: In Production
The UCS1003 provides a USB port power switch for precise control of up to 2.7 amperes continuous current with over-current limit (OCL), dynamic thermal management, latch or auto-recovery (low test current) fault handling, selectable active low or high enable, under- and over-voltage lockout, back-drive protection, back-voltage protection and charge active signal*.
Split supply support for VS and VDD is an option for low power in system standby states. This gives battery operated applications, like notebook PCs, the ability to detect attachments from a sleep or off state. After the Attach Detect is flagged, the system can decide to wake up and/or provide charging.
In addition to power switching and current limiting modes, the UCS1003 will automatically charge a wide variety of portable devices, including USB-IF BC1.2, YD/T-1591 (2009), most Apple®, Samsung, and RIM®, and many others. Nine preloaded charger emulation profiles maximize compatibility coverage of peripheral devices. As well, a customizable charger emulation profile** is available to accommodate unique existing and future portable device handshaking/signature requirements.
The UCS1003 also provides current monitoring** to allow intelligent management of system power and charge rationing for controlled delivery of current regardless of the host power state. This is especially important for battery operated applications that want to provide power in a standby and/or off state but do not want to drain the battery excessively.
The UCS1003 is available in a 20-pin QFN 4 mm x 4 mm package.
** UCS1003-1 only
The UCS1003-1 Evaluation Board provides the ability to evaluate the features of the UCS1003-1 USB Port Power Controller with Charger Emulation. The board allows the UCS1003-1 to be tested in different configurations by populating jumpers on specific header locations. The Evaluation Board contains the MCP2221 USB to I2C bridge, which allows communication via USB between the UCS1003-1 and the...
The UCS1003-2 Evaluation Board is intended for evaluation of stand-alone USB charging. The UCS1003-2 supports popular emulation profiles for Apple, Samsung, and BC1.2 compliant devices. Jumper configurations allow selection of operation for Dedicated Charging Emulation, Charging Downstream Port, Standard Downstream Port, and USB Pass Through.
For pricing and availability, contact Microchip Local Sales.