UCS1002-2 Programmable USB Port Power Controller with Charger Emulation Datasheet PRODUCT FEATURES General Description Features The UCS1002 provides a USB port power switch for Port power switch with two current limit behaviors 2.9 V to 5.5 V source voltage range precise control of up to 2.5 amperes continuous current Up to 2.5 A current with 55 m On Resistance with over-current limit (OCL), dynamic thermal Over-current trip or constant current limiting management, latch or auto-recovery (low test current) Soft turn-on circuitry fault handling, selectable active low or high enable, Programmable current limit under- and over-voltage lockout, back-drive protection, Dynamic thermal management and back-voltage protection. Under- and over-voltage lockout Split supply support for VS and VDD is an option for low Back-drive, back-voltage protection power in system standby states. This gives battery Latch or auto-recovery (low test current) fault handling operated applications, like notebook PCs, the ability to Selectable active high or low power switch enable BC1.2 VBUS discharge port renegotiation function detect attachments from a sleep or off state. After the Attach Detection is flagged, the system can decide to Selectable / automatic cycling of USB data line wake up and/or provide charging. charger emulation profiles Customizable emulation profile uses a unique stimulus In addition to power switching and current limiting and response method useful for future profiles* modes, the UCS1002 will automatically charge a wide Supports 12W charger emulation variety of portable devices, including USB-IF BC1.2, Allows for active cables YD/T-1591 (2009), most Apple and RIM , and many USB-IF BC1.2 charging downstream port (CDP) & others. Nine preloaded charger emulation profiles dedicated charging port (DCP) modes, YD/T-1591, and maximize compatibility coverage of peripheral devices. most Apple and RIM protocols standard others as 2 defined via the SMBus 2.0 / I C As well, a customizable charger emulation profile is USB 2.0 compliant high-speed data switch (in Pass- available to accommodate unique existing and future through and CDP modes) portable device handshaking / signature requirements. Nine preloaded charger emulation profiles for maximum This custom profile uses a unique stimulus and compatibility coverage of peripheral devices response method referenced below.* One custom programmable charger emulation profile The UCS1002 also provides current monitoring to allow for portable device support for fully host controlled intelligent management of system power and a Battery charger emulation Full option for controlled delivery of current regardless Fault Alert open-drain output of the host power state. This is especially important for Self-contained current monitoring battery operated applications that want to provide power Low power Attach Detection and open-drain A DET in a standby and/or off state but do not want to drain the pin battery excessively. Ultra low power Sleep state The UCS1002 is available in a 20-pin QFN 4 mm x Optional split supply support for VBUS and VDD for 4 mm package. low power in system standby states Wake on Attach USB Applications 2 SMBus 2.0 / I C communications Notebook and Netbook Computers Supports Block Write and Read Tablets and E-book readers Multiple SMBus addresses Desktops and Monitors Wide operating temperature range: -40 C to +85 C Docking Stations and Printers IEC61000-4-2 8 / 15 kV ESD immunity AC-DC wall adapters UL recognized and EN/IEC 60950-1 (CB) certified * Unique technology covered under the following US patents pending: 13/109,446 13/149,529 13/173,287 13/233,949 13/157,282 12/978,371 13/232,965. SMSC UCS1002 Revision 1.4 (07-16-13) DATASHEETProgrammable USB Port Power Controller with Charger Emulation Datasheet Block Diagram DPIN DPOUT USB 2.0 HS Data Switch & Charger Emulator DMIN DMOUT VDD VDD Attach Detector VS VBUS UVLO, GND Power OVLO Switch COMM SEL / ILIM ALERT A DET VDD PWR EN Interface, Temp SEL Charger Control, Logic Measurement, EM EN OCL M1 M2 SMCLK / S0 SMDATA / LATCH Revision 1.4 (07-16-13) 2 SMSC UCS1002 DATASHEET