UCS1001 datasheet(27/59 Pages) MICROCHIP

номер детали	UCS1001

подробное описание детали	USB Port Power Controller with Charger Emulation

PDF	59 Pages

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производитель	MICROCHIP [Microchip Technology]

домашняя страница	http://www.microchip.com

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USB Port Power Controller with Charger Emulation

Datasheet

SMSC UCS1001

Revision 1.2 (05-21-12)

DATASHEET

4.1

UCS1001 Power States

The UCS1001 has the following power states.



Off - This power state is entered when the voltage at the VDD pin voltage is < VDD_TH. In this state

the device is considered “off”. The UCS1001 will not retain its digital states. The port power switch,

bypass switch, and the high-speed data switches will be off. See Section 4.1.1, "Off State

Operation".



Sleep - This is the lowest power state available. While in this state, the UCS1001 will respond to

changes in emulation controls. The high-speed switch and all other functionality will be disabled.

See Section 4.1.2, "Sleep State Operation".



Detect - This is a lower current power state. In this state, the device is actively looking for a

portable device to be attached. The high-speed switch is disabled. See Section 4.1.3, "Detect State

Operation".



Error - This power state is entered when a fault condition exists. See Section 4.1.5, "Error State

Operation".



Active - This power state provides full functionality. While in this state, operations include activation

of the port power switch, USB data line handshaking / charger emulation, and current limiting. See

Section 4.1.4, "Active State Operation".

UCS1001 датащи(PDF) 27 Page - Microchip Technology