PI5USB58 Datasheet | Pericom Semiconductor

.. USB Sleep and Charge Switch for Single USB Port with Automatic Switching Features ÎÎ Enables USB device to draw current from Vbus when USB Description Notebook PCs are used around the world to charge battery-powered handheld devices such as cell phones and MP3/MP4 players. Hand-held devices require munication with the notebook PC before they start to draw current. This ensures that the handheld device will obtain sufficient current when it wants to charge. The issue is that the notebook PC does not have a way to provide this acknowledge signal to the handheld device when the notebook is in “Sleep” mode. Peri’s PI5USB58 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 signal levels, it will then start to draw the current required to charge itself. Cell phones within today’s market use different munication schemes, therefore the switch will need to configure itself in different modes. PI5USB58 can alternate between modes automatically, once device type is correctly detected. All signal pins are protected with Peri’s ESD protection circuits supporting ESD damage as high as 4k V contact per IEC61000-4-2 Level 2 specification. enumeration is not available ÎÎ Protects USB path from direct shortage to Vbus ÎÎ Provides full ESD support on exposed I/O pins per IEC61000-4-2 specification up to level 2 (±4k V contact) following spec's can be met: ÎÎ Provides multiple modes of charging to ensure all of the àà USB 1.1 charger spec and YD/T-1591 charger spec àà Certain modes available can also support devices using non-standard approach to charging, such as Apple products. ÎÎ Automatically switch between modes by detecting correctly plugged in device ÎÎ 5V power supply ÎÎ Ability to enable/disable external power switch when ÎÎ Low power consumption to support Energy Star charging is not required (with proper timing...