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www.pericom.com PS9083A 11/30/10
PI5USB14550-A
Description
Notebook PCs are used around the world to charge battery-pow-
ered handheld devices such as cell phones and MP3/MP4 players.
Hand-held devices require communication with the notebook
PC before they start to draw current. is ensures that the hand-
held device will obtain sucient current when it wants to charge.
e issue is that the notebook PC does not have a way to provide
this acknowledge signal to the handheld device when the note-
book is in “Sleep” mode.
Pericom’s PI5USB14550-A solves this issue by setting the D+/
D- pins in the notebook PC to the required signal levels during
“sleep” mode. When the handheld device sees these required sig-
nal levels, it will then start to draw the current required to charge
itself.
Cell phones within today’s market use dierent communication
schemes, therefore the switch will need to congure itself in dif-
ferent modes. PI5USB14550-A can alternate between modes au-
tomatically, once device type is correctly detected.
All signal pins are protected with Pericom’s ESD protection
circuits supporting ESD damage as high as +/-4kV contact per
IEC61000-4-2 specication.
Features
Î Enables USB device to draw current from Vbus when USB
enumeration is not available
Î Protects USB path from direct shortage to Vbus
Î Provides full ESD support on exposed I/O pins 2 nd 3 per
IEC61000-4-2 specication up to level 4(+/-4kV contact)
Î Provides multiple modes of charging to ensure all of the
following spec's can be met:
à USB 1.1 charger spec and YD/T-1591 charger spec
à Certain modes available can also support devices
using non-standard approach to charging, such as
Apple products.
Î Automatically switch between modes by detecting correctly
plugged in device
Î 5V power supply
Î Ability to enable/disable external power switch when
charging is not required (with proper timing requirements)
Î Low power consumption to support Energy Star
Compliance
Î Integrated ESD protection on pins #2 and #3 up to +/-4kV
contact per IEC61000-4-2 standard
Î Packaging (Pb-free & Green):
à 10-pin TDFN, ZE
USB Sleep and Charge Switch for Single USB Port with Automatic Switching
Ordering Information
Ordering Code Package Code Package Type
PI5USB14550-AZEE ZE Pb-free & Green, 10-pin TDFN
t ermal characteristics can be found on the company web site at www.pericom.com/packaging/
t E = Pb-free and Green
t Adding an X sux = Tape/Reel
Packaging Mechanical: 10-Pin TDFN (ZE)
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09-0138
t For latest package info, please check:
http://www.pericom.com/products/packaging/mechanicals.php
