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UCS1002-2 データシート(PDF) 10 Page - SMSC Corporation |
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UCS1002-2 データシート(HTML) 10 Page - SMSC Corporation |
10 / 114 page Programmable USB Port Power Controller with Charger Emulation Datasheet Revision 1.4 (07-16-13) 10 SMSC UCS1002 DATASHEET Chapter 1 Terms and Abbreviations APPLICATION NOTE: The M1, M2, PWR_EN, and EM_EN pins each have configuration bits (<pin name>_SET in Section 10.4.3, "Switch Configuration - 17h") that may be used to perform the same function as the external pin state. These bits are accessed via the SMBus / I2C and are OR’d with the respective pin. This OR’d combination of pin state and register bit is referenced as the <pin name> control. Table 1.1 Terms and Abbreviations TERM / ABBREVIATION DESCRIPTION Active mode Active power state operation mode: Data Pass-through, BC1.2 SDP, BC1.2 CDP, BC1.2 DCP, or Dedicated Charger Emulation Cycle. Attach Detection An Attach Detection event occurs when the current drawn by a portable device is greater than IDET_QUAL for longer than tDET_QUAL. attachment The physical insertion of a portable device into a USB port that UCS1002 is controlling. CC Constant current CDM Charged Device Model. JEDEC model for characterizing susceptibility of a device to damage from ESD. CDP or USB-IF BC1.2 CDP Charging downstream port. The combination of the UCS1002 CDP handshake and an active standard USB host comprises a CDP. This enables a BC1.2 compliant portable device to simultaneously draw current up to 1.5 A while data communication is active. The USB high-speed data switch is closed in this mode. charge enable When a charger emulation profile has been accepted by a portable device and charging commences. charger emulation profile Representation of a charger comprised of DPOUT, DMOUT, and VBUS signalling which make up a defined set of signatures or handshaking protocols. connection USB-IF term which refers to establishing active USB communications between a USB host and a USB device. current limiting mode Determines the action that is performed when the IBUS current reaches the ILIM threshold. Trip opens the port power switch. Constant current (variable slope) allows VBUS to be dropped by the portable device. DCE Dedicated charger emulation. Charger emulation in which the UCS1002 can deliver power only(by default). No active USB data communication is possible when charging in this mode (by default). DCP or USB-IF BC1.2 DCP Dedicated Charging Port. This functions as a dedicated charger for a BC1.2 portable device. This allows the portable device to draw currents up to 1.5 A with constant current limiting (and beyond 1.5 A with trip current limiting). No USB communications are possible (by default). DC Dedicated charger. A charger which inherently does not have USB communications, such as an A/C wall adapter. disconnection USB-IF term which refers to the loss of active USB communications between a USB host and a USB device. |
同様の部品番号 - UCS1002-2 |
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同様の説明 - UCS1002-2 |
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