Silicon Protection Arrays Application Guide USB2.0 Considerations: ● Each port can operate up to 480Mbps → The high data rate requires a low capacitance device to preserve signal integrity ● Requires 2 channels of data line protection per port (i.e. D+/D-) → A 4 channel device can be useful if protecting a USB stack of 2 ports to make the ESD footprint as small as possible → VBUS can be protected by connecting it to the VCC pin on the diode array or by using a separate single channel device as previously shown (i.e. SP1003) Application Schematic: USB Port USB Controller VBUS D+ DOptional connection to VBUS Outside World IC SP3003 Case GND Signal GND Recommended SPA Devices: SP3003-02XTG ESD Level (Contact) ±8kV I/O Capacitance 0.65pF SP3004-04XTG ±12kV SP3002-04UTG ±12kV Ordering Number ©2009 Littelfuse, Inc # of Channels VRWM Packaging 2 6V SOT553 0.85pF 4 6V SOT563 0.85pF 4 6V μDFN-6 (1.6x1.6mm) 6