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1 CS0806U Ultra-Low Capacitance TVS Protection Revision D 03/30/2012 1 CitrusCom Features Transient protection for high-speed data lines IEC 61000-4-2 (ESD) 15kV (Air) 8kV (Contact) IEC 61000-4-4 (EFT) 40A (5/50 ns) Cable Discharge Event (CDE) Small package ( ) Protects four data lines Low capacitance: Typical (I/O-I/O) Low leakage current: A @ VRWM (Typical) Low clamping voltage Each I/O pin can withstand over 1000 ESD strikes for 8kV contact discharge Description CS0806U is an ultra-low capacitance Transient Voltage Suppressor (TVS) designed to provide electrostatic discharge (ESD) protection for high-speed data interfaces. With typical capacitance of only, CS0806U is designed to protect parasitic-sensitive systems against over-voltage and over-current transient events. It complies with IEC 61000-4-2 (ESD), Level 4 ( 15kV air, 8kV contact discharge), IEC 61000-4-4 (electrical fast transient - EFT) (40A, 5/50 ns), very fast charged device model (CDM) ESD and cable discharge event (CDE), etc.

2 CS0806U uses small SOT23-6L package. Each CS0806U device can protect four high-speed data lines. The combined features of low capacitance, small size and high ESD robustness make CS0806U ideal for high-speed data ports and high-frequency lines ( , HDMI & DVI) applications. The low clamping voltage of the CS0806U guarantees a minimum stress on the protected IC. Applications Serial ATA PCI Express Desktops, Servers and Notebooks MDDI Ports Power and Data Line Protection Display Ports High Definition Multi-Media Interface (HDMI) Digital Visual Interfaces (DVI) Mechanical Characteristics SOT23-6L package Flammability Rating: UL 94V-0 Marking: Part number, Date Packaging: Tape and Reel Circuit Diagram I/O_1I/O_3I/O_2I/O_4 GNDVCC Pin Configuration 123456 SOT23-6L (Top View) CS0806U Ultra-Low Capacitance TVS Protection Revision D 03/30/2012 2 CitrusCom Absolute Maximum Rating Symbol Parameter Value Units VESD ESD per IEC 61000-4-2 (Air) ESD per IEC 61000-4-2 (Contact) 17 12 kV TOPT Operating Temperature -55/+125 C TSTG Storage Temperature -55/+150 C Electrical Characteristics (T = 25 C)

3 Symbol Parameter VRWM Nominal Reverse Working Voltage IR Reverse Leakage Current @ VRWM VBR Reverse Breakdown Voltage @ IT IT Test Current for Reverse Breakdown VC Clamping Voltage @ IPP IPP Maximum Peak Pulse Current CESD Parasitic Capacitance VR Reverse Voltage f Small Signal Frequency IF Forward Current VF Forward Voltage @ IF VoltageCurrentVFIFVRWMVBRVCIPPIRIT Uni-Directional TVS Symbol Test Condition Minimum Typical Maximum Units VRWM V IR VRWM = 5V, T = 25 C Between I/O and GND A VBR IT = 1mA Between I/O and GND V VC IPP = 1A, tp = 8/20 s Between I/O and GND 12 V CESD VR = 0V, f = 1 MHz Between I/O and GND pF CESD VR = 0V, f = 1 MHz Between I/O and I/O pF CS0806U Ultra-Low Capacitance TVS Protection Revision D 03/30/2012 3 CitrusCom Voltage Sweeping of I/O to GND (V)Current (A) Insertion Loss S21 of I/O to GND + + + + +10 Frequency (Hz)Insertion Loss (dB) Capacitance vs.

4 Voltage of I/O to GND (f = 1 MHz) Capacitance vs. Reverse Voltage Voltage (V)Capacitance (pF) ESD Clamping of I/O to GND (+8kV Contact per IEC 61000-4-2) (ns)Clamping Voltage (V) .Normalized Capacitance vs. Reverse Voltage Voltage (V)Normalized Capacitance ESD Clamping of I/O to GND (-8kV Contact per IEC 61000-4-2) (ns)Clamping Voltage (V) . CS0806U Ultra-Low Capacitance TVS Protection Revision D 03/30/2012 4 CitrusCom Application InformationPin Connection in PCB CS0806U is capable to provide ESD protection for four data lines simultaneously. The pin connection is shown in Figure 1. Four parallel data lines, from inner IC to I/O port connector, could connect to CS0806U four I/O pins directly. Pin 2 of CS0806U is the negative reference pin, which should connect to the GND of PCB. The connection wires should be as short as possible in order to minimize the parasitic inductance.

5 I/O1I/O2 GNDTo Inner ICVCC123456To ConnectorI/O3I/O4To Inner ICTo Connector Figure 1 CS0806U pin connection in PCB PCB Layout Guidelines For optimum ESD protection and the whole circuit performance, the following PCB layout guidelines are recommended: CS0806U GND pin to the PCB GND rail path should be as short as possible. It could reduce the ESD transient return path to GND. The vias connecting CS0806U VCC & GND pins to the PCB VCC & GND should be wide. Place CS0806U as close to the connector port as possible. It could reduce the parasitic inductance and restrict ESD coupling into adjacent traces. Avoid running critical signals near board edges. Figure 2 CS0806U Layout Guideline Universal Serial Bus ESD Protection USB ControllerVBUSVBUSD+D-GNDVBUSD+D-GNDUSB Port1 USB Port2 RTRTRTRTCTCTCTCTGND123456CS0806U CS0806U Ultra-Low Capacitance TVS Protection Revision D 03/30/2012 5 CitrusCom Application Information (continued)

6 TMDS_D2+TMDS_D2-TMDS_D1+TMDS_D1-TMDS_D0+ TMDS_D0-TMDS_CLK+TMDS_CLK-CECCECNCDDC_CL KDDC_DATGND+5 VHOTPLUG_DETTMDS_D2+TMDS_D2-TMDS_D1+TMDS _D1-TMDS_D0+TMDS_D0-TMDS_CLK+TMDS_CLK-HD MI RECEIVERHDMI CONNECTOR123456CS0806U123456CS0806U Layout Top View for HDMI Interface with CS0806U CS0806U Ultra-Low Capacitance TVS Protection Revision D 03/30/2012 6 CitrusCom Package Outline SOT23-6L package DE1Ee1edddMCA-BAA2A1cccCSEE VIEW A-AA4A3LL1L2 VIEW A-AGAUGE PLANEaaaC A-B 1 BBSECTION B-Bb1bc1cN bDbbbCABDSEATING PLANECBASE METAL Package Dimensions (Controlling dimensions are in millimeters) Symbol Dimensions (mm) Dimensions (Inches) Minimum Typical Maximum Minimum Typical Maximum A A1 A2 A3 A4 b b1 c c1 D BSC BSC e BSC BSC e1 BSC BSC E BSC BSC E1 BSC BSC L L1 REF REF L2 BSC BSC 0 4 8 0 4 8 1 5 10 15 5 10 15 aaa bbb ccc ddd CS0806U Ultra-Low Capacitance TVS Protection Revision D 03/30/2012 7 CitrusCom Marking Codes 6 UYWW123456 Note: (1) 6U is part number, fixed.

7 (2) YWW is date code. Y is the assembly year (2011 is 1 ); while WW is the assembly week in a year. Ordering Information Part Number Working Voltage Quantity Per Reel Reel Size CS0806U 5V 3,000 7 Inch