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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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UCS1002-1 데이터시트(PDF) 1 Page - Microchip Technology |
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UCS1002-1 데이터시트(HTML) 1 Page - Microchip Technology |
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1 / 116 page  SMSC UCS1002 Revision 1.4 (07-16-13) DATASHEET Datasheet PRODUCT FEATURES UCS1002-1 Programmable USB Port Power Controller with Charger Emulation General Description The UCS1002 provides a USB port power switch for precise control of up to 2.5 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, and back-voltage protection. 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 Detection is flagged, the system can decide to wake up and/or provide charging. In addition to power switching and current limiting modes, the UCS1002 will automatically charge a wide variety of portable devices, including USB-IF BC1.2, YD/T-1591 (2009), most Apple® 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. This custom profile uses a unique stimulus and response method referenced below.* The UCS1002 also provides current monitoring to allow intelligent management of system power and a Battery Full option 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 UCS1002 is available in a 20-pin QFN 4 mm x 4 mm package. Applications Notebook and Netbook Computers Tablets and E-book readers Desktops and Monitors Docking Stations and Printers AC-DC wall adapters Features Port power switch with two current limit behaviors — 2.9 V to 5.5 V source voltage range — Up to 2.5 A current with 55 m Ω 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 — Customizable emulation profile uses a unique stimulus and response method useful for future profiles* — Supports charger emulation — Allows for active cables — USB-IF BC1.2 charging downstream port (CDP) & dedicated charging port (DCP) modes, YD/T-1591, and most Apple and RIM protocols standard; others as defined via the SMBus 2.0 / I2C® — USB 2.0 compliant high-speed data switch (in Pass- through and CDP modes) — Nine preloaded charger emulation profiles for maximum compatibility coverage of peripheral devices — One custom programmable charger emulation profile for portable device support for fully host controlled charger emulation Fault Alert open-drain output Self-contained current monitoring Low power Attach Detection and open-drain A_DET# pin 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 Wide operating temperature range: -40 °C to +85 °C IEC61000-4-2 8 / 15 kV ESD immunity 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. |
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