Modified_ CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc All rights reserved. CIRCUIT PROTECTION SOLUTIONS ESD Protection for USB 3.0 Ports
Modified_ CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc All rights reserved. USB3.0 Protection Using TVS Diode Arrays (SPA TM ) Two Device Solution
Modified_ CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc All rights reserved. Two Device Solution for USB3.0 Protection -ESD solutions are silicon-based for lowest possible clamping voltage Signal GNDCase GND USB ControllerUSB Port SP3003 Outside World Optional SSTX+ SSTX- SSRX+ SSRX- GND D+ D- SP3010 IC NC *Package is shown as transparent V BUS SP UTG pF, 4 channels - 2.5mm x 1.0mm SP XTG pF, 2 channels - 1.6mm x 1.6mm
Modified_ CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc All rights reserved. ESD Protection of Super Speed Data Lines -SP UTG; silicon-based technology -Capacitance value of 0.45pF Key feature of the silicon technology: - Low dynamic resistance - Allows SPA product to have low clamping voltage
Modified_ CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc All rights reserved. USB3.0 Protection Using TVS Diode Arrays (SPA TM ) Fully Integrated Solution
Modified_ CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc All rights reserved. Fully Integrated Solution for ESD Protection -Silicon-based for lowest possible clamping voltage -Protection on all data lines is 0.40pF diodes Signal GNDCase GND USB ControllerUSB Port Outside World V BUS SSTX+ SSTX- SSRX+ SSRX- GND D+ D- SP3011 IC *Package is shown as transparent SP UTG pF, 6 channels - 3.5mm x 1.35mm
Modified_ CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc All rights reserved. SP UTG -Six-channel solution to protect all data lines in USB 3.0 port -Uses same straight-through pin out to simplify board design Key feature of the silicon technology: - Low dynamic resistance - Allows SPA product to have low clamping voltage
Modified_ CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc All rights reserved. Signal Integrity Test Boards
Modified_ CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc All rights reserved. ESD Device SP UTG USB Connector Signal Integrity Test Boards -Verifying Eye Diagrams with 5Gbps data rates USB Connector
Modified_ CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc All rights reserved. Test Setup -Board shown without the SP UTG
Modified_ CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc All rights reserved. Eye Diagram -Results without the SP UTG -PASS
Modified_ CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc All rights reserved. Eye Diagram -Results with the SP UTG -PASS
Modified_ CIRCUIT PROTECTION SOLUTIONS Confidential and Proprietary to Littelfuse, Inc. ® Littelfuse, Inc All rights reserved. Littelfuse has two protection schemes for a USB 3.0 port SP UTG & SP XTG SP UTG Eye diagram testing at 5Gbps proves compatibility with the Super Speed environment Silicon technology offers the lowest clamping voltage compared to competing technologies due to it’s lower dynamic resistance For more on USB3.0 Protection please read our white paper online at: Summary - USB3.0 Protection using Littelfuse TVS Diode Arrays (SPA TM )