P I 5 U S B14 68 PI5USB1468A USB Host Charger Controller supporting BC1.2, YD/T-1591, & non-standard protocols Features Description Manages communication to allow charging to occur Notebook PCs are used around the world to charge battery-pow- Provides multiple modes of charging to ensure all of the ered handheld devices such as cell phones, tablets and MP3/MP4 following specs can be met: players. Hand-held devices require communication with the DCP, CDP, and SDP per BC1.0, 1.1, 1.2 spec notebook PC before they start to draw current. This ensures that DCP per YD/T-1591 spec the handheld device will obtain sucffi ient current when it wants Samsung fast charging to charge. The challenge is that notebook PC s do not provide Sony Ericsson fast charging acknowledge signal to the handheld device when the notebook Apple fast charging 1A is in Sleep mode. Amazon Kindle Fire Automatic USB Device Identicfi ation Circuit (used to Per ic oms PI 5 USB14 6 8 (/A) s ol ve s t h i s i s s u e by s e t t i ng t he determine charging mode required) D+/D- pins in the notebook PC to the required signal levels dur- Single Power Supply, 5V 5% ing sleep mode. When the handheld device sees these required o o signal levels, it will then start to draw the current required to -40 C to +85 C Operating Temperature Range charge itself. Integrated ESD protection up to +/- 4kV contact on pins 2 and 3 per IEC61000-4-2 spec Cell phones within todays market use different communication schemes, so the switch will need to configure itself in different Detects and differentiates between High-Speed devices and modes. PI5USB1468 (/A) can alternate between modes automati- mouse/keyboard (USB Low/Full Speed device) when in Auto dedicated charging mode cally, once device type is correctly detected. Anti-loop protection for hard disk drive (HDD) D+, D- are protected with Pericoms ESD protection circuits sup- Packaging (Pb-free & Green): porting ESD damage as high as +/-4kV contact per IEC61000-4-2 specicfi ation. 8-Contact TDFN, ZA (2.0mm x 2.0mm x 0.75mm) Block Diagram INT or INT/ Y- Y+ References Power Switch Control 2 2 1 1 D+ 3 3 4 2 2 1 1 D- 3 3 4 Plug/Unplug & Control Notes: Mode Detection Logic INT is only offered on PI5USB1468A version on pin 1 INT/ is only offered on PI5USB1468 version on pin 1 SB/ CTL SEL www.pericom.com P-0.1 10/03/13 13-0147 1PI5USB1468 USB Host Charger Controller IC PI5USB1468A Pin Configuration (Top View) 7 7 8 6 5 8 6 5 GND GND * * 2 2 1 3 4 1 3 4 PI5USB1458 pinout PI5USB1458A pinout Pin Description Pin I/O P5USB1468 PI5USB1468A Name Type Description p-mosfet open source output. When SB/ observes a logic change (from H to L or from L to H). INT/ is high for ~ 1 N/A INT/ O 2.4 seconds, otherwise INT/ is hi-z. External pull-down is required. n-mosfet open drain output. When SB/ observes a logic change (from H to L or from L to H). INT is LOW for ~ N/A 1 INT O 2.4 seconds, otherwise, INT is hi-z. External pull-up is required. 2 2 D- I/O USB Connector, D- connection 3 3 D+ I/O USB Connector, D+ connection 4 4 SEL I Input control logic (See truth table), 100kW pull down 5 5 Power 5V power supply V DD 6 6 Y+ I/O Host USB transceiver (if existent) D+ connection 7 7 Y- I/O Host USB transceiver (if existent) D- connection Control input to switch between S0 charging or sleep 8 8 SB/ I and charge * * GND Ground Exposed Pad. Connect to ground. PI5USB1468 and PI5USB1468A Truth Table pin 1 role (INT SB/ SEL Feature or INT/) 0 0 or 1 Auto dedicated charger with mouse/keyboard pass through INT or INT/ 1 0 S0 charging with SDP only INT or INT/ 1 1 S0 charging with CDP or SDP only (depending on external device) INT or INT/ www.pericom.com P-0.1 10/03/13 13-0147 2 INT/ SB/ D- Y- D+ Y+ SEL V DD INT SB/ D- Y- D+ Y+ SEL V DD