UCS1001 datasheet(8/59 Pages) MICROCHIP

8 / 59 page

USB Port Power Controller with Charger Emulation

Datasheet

Revision 1.2 (05-21-12)

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.

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.

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.

UCS1001 数据表(PDF) 8 Page - Microchip Technology

UCS1001 数据表(HTML) 8 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59

数据表下载