CS0816

CS0816 Low Capacitance TVS Protection Features Applications • • • • • • • • 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 (2.9mm × 2.8mm × 1.4mm) • • • • Protects four data lines Low capacitance: 0.7pF Typical (I/O-GND) Low leakage current: 0.1µA @ VRWM (Typical) Low clamping voltage • Each I/O pin can withstand over 1000 ESD strikes for ±8kV contact discharge Green Part • Mechanical Characteristics • • • • SOT23-6L package Flammability Rating: UL 94V-0 Marking: Part number, Date Packaging: Tape and Reel Circuit Diagram General Description CS0816 is a low capacitance Transient Voltage Suppressor (TVS) designed to provide electrostatic discharge (ESD) protection for high-speed data interfaces. With typical capacitance of 0.7pF only, CS0816 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 m del (CDM) ESD and cable discharge event (CDE), etc. CS0816 uses small SOT23-6L package. Each CS0816 device can protect four high-speed data lines. The combined features of low capacitance, small size and high ESD robustness make CS0816 ideal for highspeed data ports and high-frequency lines (e.g., HDMI & DVI) applications. The low clamping voltage of the CS0816 guarantees a minimum stress on the protected IC. CS0816 Rev.0.9 Video Graphics Cards Desktops, Servers and Notebooks IEEE 1394 Ports USB2.0 Power and Data Line Protection Display Ports SIM Ports Pin Configuration SOT23-6L (Top View) Silergy Corp. Confidential- Prepared for Customer Use Only 1 CS0816 Low Capacitance TVS Protection Absolute Maximum Rating Symbol V ESD Parameter ESD per IEC 61000-4-2 (Air) ESD per IEC 61000-4-2 (Contact) Value Units ±17 ±12 kV T OPT Operating Temperature -55/+125 °C STG Storage Temperature -55/+150 °C T Electrical Characteristics (T = 25° C) Symbol Parameter V RWM IR V BR Nominal Reverse Working Voltage Reverse Leakage Current @ VRWM Reverse Breakdown Voltage @ IT IT Test Current for Reverse Breakdown VC Clamping Voltage @ IPP I PP C Maximum Peak Pulse Current ESD VR Parasitic Capacitance Reverse Voltage f Small Signal Frequency IF Forward Current VF Forward Voltage @ IF Symbol Test Co dition Uni-Directional TVS Minimum Typical Maximum Units 5.0 V 0.1 1.0 µA 8.0 10.0 V 12 V 0.8 pF V RWM IR V BR VC C E D C ESD CS0816 Rev.0.9 VRWM = 5V, T = 25° C Between I/O and GND IT = 1mA Between I/O and GND IPP = 1A, tp = 8/20µs Between I/O and GND VR = 0V, f = 1MHz Between I/O and GND VR = 0V, f = 1MHz Between I/O and I/O 6.0 0.7 0.35 Silergy Corp. Confidential- Prepared for Customer Use Only pF 2 CS0816 Low Capacitance TVS Protection Voltage Sweeping of I/O to GND Insertion Loss S21 of I/O to GND 0.12 5.0 0.10 0.0 0.08 0.06 -5.0 InsertionLoss(dB) Current(A) 0.04 0.02 -0.04 0.00 -10.0 -0.02 -15.0 -20.0 -0.06 -0.08 -25.0 -0.10 -0.12 -30.0 -2 -1 0 1 2 3 4 5 6 7 8 9 1.0E+06 1.0E+07 Voltage (V) 1.0E+08 1.0E+09 1.0E+10 Frequency (Hz) Capacitance vs. Voltage of I/O to GND (f = 1MHz) Capacitance vs. Reverse Voltage Normalized Capacitance vs. Reverse Voltage 2.0 1.5 1.4 1.6 1.3 Normalized Capacitance 1.8 Capacitance (pF) 1.4 1.2 1.0 0.8 0.6 1.2 1.1 1.0 0.9 0.8 0.4 0.7 0.2 0.6 0.0 0.5 0 1 2 3 4 5 0 1 2 Reverse Voltage (V) ESD Clamping of I/O to GND (+8kV Contact per IEC 61000-4-2) 4 5 ESD Clamping of I/O to GND (-8kV Contact per IEC 61000-4-2) 70.0 20.0 60.0 10.0 0.0 Clamping Voltage (V) 50.0 Clamping Voltage (V) 3 Reverse Voltage (V) 40.0 30.0 20.0 10.0 -10.0 -20.0 -30.0 -40.0 0.0 -50.0 -10.0 -60.0 -20.0 -70.0 -50 0 50 100 Time (ns) CS0816 Rev.0.9 150 200 -50 0 50 100 150 200 Time (ns) Silergy Corp. Confidential- Prepared for Customer Use Only 3 CS0816 Low Capacitance TVS Protection Application Information Pin Connection in PCB PCB Layout Guidelines CS0816 is capable to provide ESD protection for four data lines simultaneously. The pin connection is shown in Figure 1. For optimum ESD protection and the whole circuit performance, the following PCB layout guidelines are recommended: Four parallel data lines, from inner IC to I/O port connector, could connect to CS0816 four I/O pins directly. Pin 2 of CS0816 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. • CS0816 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 CS0816 VCC & G D pins to the PCB VCC & GND should be wide. • Place CS0816 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. 6 12 5 3 4 Figure 2 CS0816 Layout Guideline Figure 1 CS0816 pin connection in PCB Universal Serial Bus ESD Protection CS0816 Rev.0.9 Silergy Corp. Confidential- Prepared for Customer Use Only 4 CS0816 Low Capacitance TVS Protection Application Information (continued) 6 1 5 CS081 6 2 4 3 6 1 5 4 CS081 6 2 3 Layout Top View for Video (VGA) Int rface with CS0816 Layout Top View for SIM Port with CS0816 CS0816 Rev.0.9 Silergy Corp. Confidential- Prepared for Customer Use Only 5 CS0816 Low Capacitance TVS Protection Package Outline • SOT23-6L package Package Dimensions (Controlling dimensions are in millimeters) Symbol Dimensions (mm) Minimum Maximum Minimum — 1.450 — A — A1 0.000 — A2 0.900 1.200 b 0.300 — b1 0.300 0.400 c 0.080 — c1 0.080 0.130 0.150 1.300 0.500 0.450 0.220 0.200 Typical 0.057 — 0.000 0.035 0.012 0.012 0.003 0.003 Maximum — 0.047 — 0.016 — 0.005 D 2.90 BSC 0.114 BSC e 0.95 BSC 0.037 BSC e1 1.90 BSC 0.075 BSC E 2.80 BSC 0.110 BSC E1 L CS0816 Rev.0.9 Dimensions (Inches) Typical 1.60 BSC 0.300 0.450 0.006 0.012 0.020 0.018 0.009 0.008 0.063 BSC 0.600 0.012 0.018 L1 0.600 REF 0.024 REF L2 0.250 BSC 0.010 BSC 0.024 θ 0° 4° 8° 0° 4° 8° θ1 aaa 5° 10° 0.150 15° 5° 10° 0.006 15° bbb 0.200 0.008 ccc 0.100 0.004 ddd 0.100 0.004 Silergy Corp. Confidential- Prepared for Customer Use Only 6 CS0816 Low Capacitance TVS Protection Tape and Reel Specification Symbol W Dimensions (mm ) 8.00+0.3 A0 B0 K0 E F P P 0 P2 T 3.23±0.05 3.17±0.05 1.37±0.05 1.75±0.1 3.5±0.05 4.0±0.1 4.0±0.1 2.0±0.05 0.25±0.02 -0.1 W1 S K M N R H W SymbolReel Size M N W W1 H S K R Dimensions (mm) Φ178 178.0±1.0 60.0±1.0 11.5±0.5 9.0±0.5 13.0±0.5 2.0±0.1 11.0±0.2 1.0±0.05 CS0816 Rev.0.9 Silergy Corp. Confidential- Prepared for Customer Use Only 7 CS0816 Low Capacitance TVS Protection Marking Codes Ordering Information Part Number Working Voltage Quantity Per Reel Reel Size CS0816 5V 3,000 7 Inch Note: (1) “16” is part number, fixed. (2) “YWW” is date code. “Y” is the assembly year (2012 is “2”); while “WW” is the assembly week in a year. Footprint: SOT23-6L A E D F B C Symbol Dimensions Millimeters Inches A 0.60 0.024 B 1.10 0.043 C 0.95 0.037 D 1.40 0.055 E 2.50 0.098 F 3.60 0.141 CS0816 Rev.0.9 Silergy Corp. Confidential- Prepared for Customer Use Only 8