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UCS1001-4 データシート(PDF) 8 Page - SMSC Corporation

部品番号 UCS1001-4
部品情報  USB Port Power Controller with Charger Emulation
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メーカー  SMSC [SMSC Corporation]
ホームページ  http://www.smsc.com
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UCS1001-4 データシート(HTML) 8 Page - SMSC Corporation

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USB Port Power Controller with Charger Emulation
Datasheet
Revision 1.4 (07-16-13)
8
SMSC UCS1001
DATASHEET
Chapter 1 Terms and Abbreviations
APPLICATION NOTE: The M1, M2, PWR_EN, and EM_EN pins are referenced in text 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.
attachment
The physical insertion of a portable device into a USB port that UCS1001 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 UCS1001 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 UCS1001 can deliver power
only. No active USB data communication is possible when charging in this mode.
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.
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.
dynamic thermal
management
The UCS1001 automatically adjusts port power switch limits and modes to lower internal
power dissipation when the thermal regulation temperature value is approached.
enumeration
A USB-specific term that indicates that a host is detecting and identifying USB devices.
handshake
Application of a charger emulation profile that requires a response. Two-way
communication between the UCS1001 and the portable device.
HBM
Human Body Model.
HSW
High-speed switch.


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