UCS1001 datasheet(48/59 Pages) MICROCHIP

Part #	UCS1001

Description	USB Port Power Controller with Charger Emulation

PDF	59 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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USB Port Power Controller with Charger Emulation

Datasheet

Revision 1.2 (05-21-12)

SMSC UCS1001

DATASHEET

8.10.5

Legacy 7 Charger Emulation Profile

The Legacy 7 charger emulation profile does the following:

1. The UCS1001 will apply a voltage on the DPOUT pin using a voltage divider between VBUS and

ground with the center tap on the DPOUT pin.

2. VBUS voltage is applied.

3. If the portable device is charging, the UCS1001 will accept that Legacy 7 is the correct charger

emulation profile for the attached portable device. The voltage applied to the DPOUT pin will

remain in place. The UCS1001 will begin operating in trip mode

4. If the portable device is not charging, the UCS1001 will stop the Legacy 7 charger emulation profile.

This will cause the voltage put onto the DPOUT pin to be removed. Emulation reset occurs, and

the UCS1001 will initiate the next charger emulation profile.

UCS1001 Datasheet(PDF) 48 Page - Microchip Technology