AOZ8809ADI Ultra-Low Capacitance TVS Diode General Description Features The AOZ8809ADI is a transient voltage suppressor array designed to protect high speed data lines such as HDMI 1.4/2.0, USB 3.0/3.1, MDDI, SATA, and Gigabit Ethernet from damaging ESD events. ESD protection for high-speed data lines: This device incorporates eight surge rated, low capacitance steering diodes and a TVS in a single package. During transient conditions, the steering diodes direct the transient to either the positive side of the power supply line or to ground. The AOZ8809ADI provides a typical line-to-line capacitance of 0.25 pF and low insertion loss up to 6GHz providing greater signal integrity making it ideally suited for HDMI 1.4/2.0 or USB 3.0/3.1 applications, such as Digital TVs, DVD players, computing, set-top boxes and MDDI applications in mobile computing devices. The AOZ8809ADI comes in a RoHS compliant and Halogen Free 2.5 mm x 1.0 mm x 0.55 mm DFN-10 package and is rated for -40C to +85C junction temperature range. - IEC 61000-4-2, level 4 (ESD) immunity test - Air discharge: 15 kV; contact discharge: 15 kV - IEC61000-4-4 (EFT) 40 A (5/50 ns) - IEC61000-4-5 (Lightning) 4 A (8/20 s) - Human Body Model (HBM) 24 kV Array of surge rated diodes with internal TVS diode Small package saves board space Protects four I/O lines Low capacitance between I/O lines: 0.25 pF Low clamping voltage Low operating voltage: 3.3V, 5.0 V Applications HDMI 1.4/2.0, USB 3.0/3.1, MDDI, SATA ports Monitors and flat panel displays Set-top box Video graphics cards Digital Video Interface (DVI) Notebook computers Typical Applications AOZ8809ADI AOZ8809ADI AOZ8802A TX2+ TX2D+ DUSB 3.0/3.1 Transceiver D+ DUSB 3.0/3.1 Connector SSRX+ SSRX- SSRX+ SSRX- TX1+ TX1HDMI 1.4/2.0 Transmitter TX0+ TX0- SSTX+ SSTX- SSTX+ SSTX- CLK+ CLK- RX2+ RX2RX1+ RX1HDMI 1.4/2.0 Receiver RX0+ RX0CLK+ CLKConnector AOZ8809 AOZ8809ADI Figure 1. USB 3.0/3.1 Ports Rev. 2.0 March 2017 Connector AOZ8809ADI Figure 2. HDMI 1.4/2.0 Ports www.aosmd.com Page 1 of 10 AOZ8809ADI Ordering Information Part Number Ambient Temperature Range Package Environmental -40 C to +85 C 2.5 mm x 1.0 mm x 0.55 mm DFN-10 Green Product AOZ8809ADI-03 AOZ8809ADI-05 AOS Green Products use reduced levels of Halogens, and are also RoHS compliant. Please visit www.aosmd.com/media/AOSGreenPolicy.pdf for additional information. Pin Configuration CH1 1 10 NC CH2 2 9 NC VN 3 8 VN CH3 4 7 NC CH4 5 6 NC DFN-10 (Top View) Absolute Maximum Ratings Exceeding the Absolute Maximum ratings may damage the device. Parameter AOZ8809ADI-03 Storage Temperature (TS) AOZ8809ADI-05 -65 C to +150 C ESD Rating per IEC61000-4-2, contact (1)(3) 15 kV (1)(3) ESD Rating per IEC61000-4-2, air 15 kV ESD Rating per Human Body Model(2)(3) 24 kV Notes: 1. IEC 61000-4-2 discharge with CDischarge = 150pF, RDischarge = 330 . 2. Human Body Discharge per MIL-STD-883, Method 3015 CDischarge = 100 pF, RDischarge = 1.5 k. Maximum Operating Ratings Parameter Rating Junction Temperature (TJ) Rev. 2.0 March 2017 -40 C to +125 C www.aosmd.com Page 2 of 10 AOZ8809ADI Electrical Characteristics TA = 25C unless otherwise specified. AOZ8809ADI-03 Symbol Parameter Conditions Min. Typ. Max. Units 3.3 V VRWM Reverse Working Voltage I/O Pin to ground VBR Reverse Breakdown Voltage IT=100A, I/O Pin to ground IR Reverse Leakage Current VRWM=3.3V, I/O Pin to ground VF Forward Voltage IF=15mA VHOLD Hold Voltage of Snapback(3) 0.8 V IHOLD Hold Current of Snapback(3) 3 mA VCL Clamping Voltage(3)(4) (100ns Transmission Line Pulse, I/O Pin to ground) ITLP=1A 3.5 ITLP=12A 8.0 RDNY Dynamic Resistance(3) ITLP=1A to 12A 0.35 CJ Junction Capacitance VPIN 3,8=0V, VI/O=0V, f=1MHz, I/O 0.45 3.5 V 1 A V 0.85 0.6 pF Pin to ground Rev. 2.0 March 2017 www.aosmd.com Page 3 of 10 AOZ8809ADI AOZ8809ADI-05 Symbol Parameter Conditions VRWM Reverse Working Voltage I/O Pin to ground VBR Reverse Breakdown Voltage IT=100A, I/O Pin to ground IR Reverse Leakage Current VRWM=3.3V, I/O Pin to ground VF Forward Voltage Min. Typ. Max. Units 5.0 V 6.0 V 1 IF=15mA A V 0.85 VHOLD Hold Voltage of Snapback (3) 0.8 V IHOLD Hold Current of Snapback(3) 3.5 mA VCL Clamping Voltage(3)(4) (100ns Transmission Line Pulse, I/O Pin to ground) ITLP=1A 4.0 V ITLP=12A 9.0 V RDNY Dynamic Resistance(3) ITLP=1A to 12A 0.35 CJ Junction Capacitance VPIN 3,8=0V, VI/O=0V, f=1MHz, I/O 0.45 0.6 pF Pin to ground Notes: 3. These specifications are guaranteed by design and characterization. 4. Measurements performed using a 100ns Transmission Line Pulse (TLP) system. Rev. 2.0 March 2017 www.aosmd.com Page 4 of 10 AOZ8809ADI Typical Performance Characteristics Positive TLP Clamping Negative TLP Clamping (tperiod = 100ns, tr = 1ns) 30 25 -5 TLP Current (A) TLP Current (A) (tperiod = 100ns, tr = 1ns) 0 20 15 10 5 -10 -15 -20 -25 0 -30 0 2 4 6 8 TLP Voltage (V) 10 -25 12 -20 -15 -10 TLPVoltage (V) -5 0 Capacitance vs. Frequency (IO to GND) Typical Variation of CIN vs. VIN 0.8 1E-12 8E-13 0.6 Capacitance (F) Capacitance (pF) 0.7 0.5 0.4 0.3 0.2 AOZ8809ADI-5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Input Voltage (V) 4.0 4.5 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 Frequency (MHz) 5.0 +8kV ESD Clamping Per IEC 61000-4-2 (Contact, Between IO to GND) 55 -8kV ESD Clamping Per IEC 61000-4-2 (Contact, Between IO to GND) 5 45 Clamping Voltage (V) Clamping Voltage (V) 4E-13 2E-13 AOZ8809ADI-3 0.1 0 6E-13 35 25 15 5 -5 -5 -15 -25 -35 -45 -55 0 25 Rev. 2.0 March 2017 50 75 Time (ns) 100 125 150 www.aosmd.com 0 25 50 75 Time (ns) 100 125 150 Page 5 of 10 AOZ8809ADI Typical Performance Characteristics (Continued) Insertion Loss vs. Frequency (IO to GND) 0 Insertion Loss S21 (dB) Insertion Loss S21 (dB) 0 -2 -4 -6 -8 -10 10,000 Insertion Loss vs. Frequency (IO to IO) -2 -4 -6 -8 -10 10,000 100,000 1,000,000 Frequency (kHz) USB 3.1 Eye Diagram with AOZ8809 (10Gbps) 400m Voltage (V) Differential Signal (V) USB 3.0 Eye Diagram with AOZ8809 (5Gbps) 0.6 0.5 0.4 0.3 0.2 0.1 0.0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.2 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 Unit Intervals 100,000 1,000,000 Frequency (kHz) -400m -100 Time (s) 100p HDMI 2.0 Eye Diagram with AOZ8809 HDMI 1.4 Eye Diagram with AOZ8809 600m Voltage (V) Voltage (V) 875m -600m -875m 0 Rev. 2.0 March 2017 Time (s) 898p www.aosmd.com 0 Time (s) 300p Page 6 of 10 AOZ8809ADI High Speed PCB Layout Guidelines Printed circuit board layout is the key to achieving the highest level of surge immunity on power and data lines. The location of the protection devices on the PCB is the simplest and most important design rule to follow. The AOZ8809ADI devices should be located as close as possible to the noise source. The AOZ8809ADI device should be placed on all data and power lines that enter or exit the PCB at the I/O connector. In most systems, surge pulses occur on data and power lines that enter the PCB through the I/O connector. Placing the AOZ8809ADI devices as close as possible to the noise source ensures that a surge voltage will be clamped before the pulse can be coupled into adjacent PCB traces. In addition, the PCB should use the shortest possible traces. A short trace length equates to low impedance, which ensures that the surge energy will be dissipated by the AOZ8809ADI device. Long signal traces will act as antennas to receive energy from fields that are produced by the ESD pulse. By keeping line lengths as short as possible, the efficiency of the line to act as an antenna for ESD related fields is reduced. Minimize interconnecting line lengths by placing devices with the most interconnect as close together as possible. The protection circuits should shunt the surge voltage to either the reference or chassis ground. Shunting the surge voltage directly to the IC's signal ground can cause ground bounce. The clamping performance of TVS diodes on a single ground PCB can be improved by minimizing the impedance with relatively short and wide ground traces. The PCB layout and IC package parasitic inductances can cause significant overshoot to the TVS's clamping voltage. The inductance of the PCB can be reduced by using short trace lengths and multiple layers with separate ground and power planes. One effective method to minimize loop problems is to incorporate a ground plane in the PCB design. The AOZ8809ADI ultra-low capacitance TVS is designed to protect four high speed data transmission lines from transient over-voltages by clamping them to a fixed reference. The low inductance and construction minimizes voltage overshoot during high current surges. When the voltage on the protected line exceeds the reference voltage the internal steering diodes are forward biased, conducting the transient current away from the sensitive circuitry. The AOZ8809ADI is designed for ease of PCB layout by allowing the traces to run underneath the device. The pinout of the AOZ8809ADI is designed to simply drop onto the IO lines of a High Definition Multimedia Interface (HDMI 1.4/2.0) or USB 3.0/3.1 design without having to divert the signal lines that may add more parasitic inductance. Pins 1, 2, 4 and 5 are connected to the internal TVS devices and pins 6, 7, 9 and 10 are no connects. The no connects was done so the package can be securely soldered onto the PCB surface. Clock Clock SSRX+ SSRX+ Data0 Data0 SSRX- SSRX- Ground Ground Ground Data1 Data1 SSTX+ SSTX+ Data2 Data2 SSTX- SSTX- Ground Figure 3. Flow Through Layout for HDMI 1.4/2.0 Figure 4. Flow Through Layout for USB 3.0/3.1 . Rev. 2.0 March 2017 www.aosmd.com Page 7 of 10 AOZ8809ADI Package Dimensions, DFN 2.5mm x 1.0mm x 0.5mm, 10L b1 b2 b 10 L D e L1 TOP VIEW Pin #1 Dot by Marking L2 E 1 2 R Nd BOTTOM VIEW Dimensions in Millimeters c A SIDE VIEW A1 RECOMMENDED LAND PATTERN Symbol Min. Nom. Max. Min. Nom. Max. A 0.50 0.55 0.60 0.0196 0.0236 A1 __ 0.0216 0.02 0.05 __ 0.0007 0.0019 b 0.15 0.20 0.25 0.0059 0.0078 0.0098 b1 0.35 0.40 0.45 0.0137 0.0157 0.0177 b2 0.20 0.25 0.30 0.0078 0.0098 0.0118 c 0.10 0.15 0.20 0.0039 0.0059 0.0078 D 2.45 2.50 2.55 0.0964 0.0984 0.1003 0.10 0.50 0.30 Dimensions in Inches 0.15 e 0.50BSC 0.0196BSC Nd 2.00BSC 0.0787BSC 0.36 0.48 0.72 1.20 0.24 E 0.95 1.00 1.05 0.0374 0.0393 0.0413 L 0.33 0.38 0.43 0.0129 0.0150 0.0169 L1 0.075REF 0.0295REF L2 0.05REF 0.0197REF 0.20 0.40 R 0.08 0.13 0.18 0.0031 0.0051 0.0071 Note: 4. Controlling dimension is millimeter. Converted inch dimensions are not necessarily exact. Rev. 2.0 March 2017 www.aosmd.com Page 8 of 10 AOZ8809ADI Tape and Reel Dimensions, DFN 2.5mm x 1.0mm x 0.5mm, 10L Carrier Tape P2 P1 D0 D1 E1 K0 E2 E B0 Ref 5 P0 T A0 A-A Feeding Direction UNIT: mm Package DFN 2.5x1.0 B0 2.62 0.05 A0 1.12 0.05 K0 0.70 0.05 D0 D1 E o1.55 o0.55 8.00 0.05 0.05 +0.3/-0.1 Reel E1 E2 3.50 0.05 1.75 0.1 P0 4.00 0.10 P1 4.0 0.10 P2 2.0 0.05 T 0.25 0.05 W1 S M K N G R H W UNIT: mm Tape Size Reel Size 8mm o178 M o178.0 1.0 N o60.0 0.5 W 11.80 0.5 W1 9.0 0.5 H o13.0 +0.5 / -0.2 S 2.40 0.10 K 10.25 0.2 E o9.8 R -- Leader / Trailer & Orientation Trailer Tape 300mm Min. Rev. 2.0 March 2017 Components Tape Orientation in Pocket www.aosmd.com Leader Tape 500mm Min. Page 9 of 10 AOZ8809ADI Part Marking AOZ8809ADI-03 (2.5 x 1.0 DFN) XC12 Part Number Code Assembly Lot Code Week and Year Code AOZ8809ADI-05 (2.5 x 1.0 DFN) VC12 Part Number Code Assembly Lot Code Week and Year Code LEGAL DISCLAIMER Applications or uses as critical components in life support devices or systems are not authorized. AOS does not assume any liability arising out of such applications or uses of its products. AOS reserves the right to make changes to product specifications without notice. It is the responsibility of the customer to evaluate suitability of the product for their intended application. Customer shall comply with applicable legal requirements, including all applicable export control rules, regulations and limitations. AOS' products are provided subject to AOS' terms and conditions of sale which are set forth at: http://www.aosmd.com/terms_and_conditions_of_sale LIFE SUPPORT POLICY ALPHA AND OMEGA SEMICONDUCTOR PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. Rev. 2.0 March 2017 2. A critical component in any component of a life support, device, or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.aosmd.com Page 10 of 10