rev. 2.0 march 2017 www.aosmd.com page 1 of 10 aoz8809adi ultra-low capacitance tvs diode general description 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. 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. features ? esd protection for high-speed data lines: ? 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 figure 1. usb 3.0/3.1 ports figure 2. hdmi 1.4/2.0 ports aoz8809adi aoz8809adi tx2+ tx2- tx1+ tx1- tx0+ tx0- clk+ clk- hdmi 1.4/2.0 transmitter rx2+ rx2- rx1+ rx1- rx0+ rx0- clk+ clk- hdmi 1.4/2.0 receiver connector connector aoz8809adi aoz8809adi aoz8802a aoz8809 d+ d- ssrx+ ssrx- sstx+ sstx- usb 3.0/3.1 transceiver d+ d- ssrx+ ssrx- sstx+ sstx- usb 3.0/3.1 connector
aoz8809adi rev. 2.0 march 2017 www.aosmd.com page 2 of 10 ordering information 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 absolute maximum ratings exceeding the absolute maximum ratings may damage the device. notes: 1. iec 61000-4-2 discharge with c discharge = 150pf, r discharge = 330 . 2. human body discharge per mil-std-883, method 3015 c discharge = 100 pf, r discharge = 1.5 k . maximum operating ratings part number ambient temperature range package environmental AOZ8809ADI-03 -40 c to +85 c 2.5 mm x 1.0 mm x 0.55 mm dfn-10 green product aoz8809adi-05 1 2 3 4 5 10 9 8 7 6 ch1 ch2 vn ch3 ch4 nc nc vn nc nc dfn-10 (top view) parameter AOZ8809ADI-03 aoz8809adi-05 storage temperature (t s ) -65 c to +150 c esd rating per iec61000-4-2, contact (1)(3) 15 kv esd rating per iec61000-4-2, air (1)(3) 15 kv esd rating per human body model (2)(3) 24 kv parameter rating junction temperature (t j ) -40 c to +125 c
aoz8809adi rev. 2.0 march 2017 www.aosmd.com page 3 of 10 electrical characteristics t a = 25c unless otherwise specified. AOZ8809ADI-03 symbol parameter conditions min. typ. max. units v rwm reverse working voltage i/o pin to ground 3.3 v v br reverse breakdown voltage i t =100 a, i/o pin to ground 3.5 v i r reverse leakage current v rwm =3.3v, i/o pin to ground 1 a v f forward voltage i f =15ma 0.85 v v hold hold voltage of snapback (3) 0.8 v i hold hold current of snapback (3) 3ma v cl clamping voltage (3)(4) (100ns transmission line pulse, i/o pin to ground) i tlp =1a 3.5 i tlp =12a 8.0 r dny dynamic resistance (3) i tlp =1a to 12a 0.35 c j junction capacitance v pin 3,8 =0v, v i/o =0v, f=1mhz, i/o pin to ground 0.45 0.6 pf
aoz8809adi rev. 2.0 march 2017 www.aosmd.com page 4 of 10 notes: 3. these specifications are guaranteed by design and characterization. 4. measurements performed using a 100ns transmission line pulse (tlp) system. aoz8809adi-05 symbol parameter conditions min. typ. max. units v rwm reverse working voltage i/o pin to ground 5.0 v v br reverse breakdown voltage i t =100 a, i/o pin to ground 6.0 v i r reverse leakage current v rwm =3.3v, i/o pin to ground 1 a v f forward voltage i f =15ma 0.85 v v hold hold voltage of snapback (3) 0.8 v i hold hold current of snapback (3) 3.5 ma v cl clamping voltage (3)(4) (100ns transmission line pulse, i/o pin to ground) i tlp =1a 4.0 v i tlp =12a 9.0 v r dny dynamic resistance (3) i tlp =1a to 12a 0.35 c j junction capacitance v pin 3,8 =0v, v i/o =0v, f=1mhz, i/o pin to ground 0.45 0.6 pf
rev. 2.0 march 2017 www.aosmd.com page 5 of 10 aoz8809adi typical performance characteristics (t period = 100ns, t r = 1ns) positive tlp clamping tlp voltage (v) 0 5 10 15 20 25 30 0 2 4 6 8 10 12 tlp current (a) (t period = 100ns, t r = 1ns) negative tlp clamping frequency (mhz) 1e-12 8e-13 6e-13 4e-13 2e-13 0 500 1000 capacitance (f) typical variation of cin vs. vin input voltage (v) 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 capacitance (pf) capacitance vs. frequency (io to gnd) 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 aoz8809adi-3 aoz8809adi-5 -30 -25 -20 -15 -10 -5 0 tlp current (a) tlpvoltage (v) -25 -20 -15 -10 -5 0 +8kv esd clamping per iec 61000-4-2 (contact, between io to gnd) time (ns) 55 45 35 25 15 5 -5 0 25 50 75 100 125 150 clamping voltage (v) -8kv esd clamping per iec 61000-4-2 (contact, between io to gnd) time (ns) 5 -5 -15 -25 -35 -45 -55 0 25 50 75 100 125 150 clamping voltage (v)
rev. 2.0 march 2017 www.aosmd.com page 6 of 10 aoz8809adi typical performance characteristics (continued) insertion loss vs. frequency (io to gnd) insertion loss vs. frequency (io to io) frequency (khz) -10 -8 -6 -4 -2 0 10,000 100,000 1,000,000 insertion loss s21 (db) frequency (khz) -10 -8 -6 -4 -2 0 10,000 100,000 1,000,000 insertion loss s21 (db) usb 3.0 eye diagram with aoz8809 (5gbps) unit intervals differential signal (v) -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 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 time (s) 0 -875m 875m 898p voltage (v) hdmi 1.4 eye diagram with aoz8809 time (s) 0 -600m 600m 300p voltage (v) hdmi 2.0 eye diagram with aoz8809 time (s) -100 -400m 400m 100p voltage (v) usb 3.1 eye diagram with aoz8809 (10gbps)
aoz8809adi rev. 2.0 march 2017 www.aosmd.com page 7 of 10 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. figure 3. flow through layout for hdmi 1.4/2.0 figure 4. flow through layout for usb 3.0/3.1 . clock data0 ground data1 data2 clock data0 ground data1 data2 ssrx+ ssrx? ground sstx+ sstx? ssrx+ ssrx? ground sstx+ sstx?
aoz8809adi rev. 2.0 march 2017 www.aosmd.com page 8 of 10 package dimensions, dfn 2.5mm x 1.0mm x 0.5mm, 10l note: 4. controlling dimension is millimeter. converted inch dimensions are not necessarily exact. e pin #1 dot by marking a a1 c 0.30 0.50 0.10 0.15 0.36 0.72 0.40 0.20 1.20 0.24 0.48 d recommended land pattern side view top view bottom view 1 2 e nd b r l 10 b2 b1 l1 l2 nd 0.13 0.08 0.18 r 2.45 2.50 2.55 0.95 symbol dimensions in millimeters b 0.15 0.10 0.20 d a e 0.50bsc e 1.05 1.00 0.02 0.05 a1 __ 0.25 0.15 0.20 c 0.60 0.50 2.00bsc b1 0.45 0.35 0.40 0.33 0.43 l b2 0.30 0.20 0.25 0.075ref l1 0.05ref l2 0.55 min. nom. max. min. nom. max. dimensions in inches 0.0236 0.0196 0.0216 0.0019 0.0007 0.0098 0.0059 0.0078 0.0177 0.0137 0.0157 0.0078 0.0039 0.0964 0.0098 0.0059 0.0984 0.0118 0.0078 0.1003 __ 0.0374 0.0393 0.0413 0.0129 0.0169 0.0031 0.0051 0.0071 0.0196bsc 0.0787bsc 0.0295ref 0.0197ref 0.38 0.0150
rev. 2.0 march 2017 www.aosmd.com page 9 of 10 aoz8809adi tape and reel dimensions, dfn 2.5mm x 1.0mm x 0.5mm, 10l carrier tape reel a?a leader / trailer & orientation tape size 8mm reel size ?178 m ?178.0 1.0 package dfn 2.5x1.0 t 0.25 0.05 b0 2.62 0.05 a0 1.12 0.05 k0 0.70 0.05 d0 ?1.55 0.05 d1 ?0.55 0.05 e1 1.75 0.1 e 8.00 +0.3/-0.1 e2 3.50 0.05 p0 4.00 0.10 p1 4.0 0.10 p2 2.0 0.05 n ?60.0 0.5 trailer tape 300mm min. components tape orientation in pocket leader tape 500mm min. e1 e2 e t r g unit: mm unit: mm feeding direction w 11.80 0.5 h ?13.0 +0.5 / ?0.2 w1 9.0 0.5 s 2.40 0.10 k 10.25 0.2 e ?9.8 r ? w1 m w n h sk ref 5 b0 k0 p1 p2 d0 d1 p0 a0
aoz8809adi rev. 2.0 march 2017 www.aosmd.com page 10 of 10 part marking xc12 part number code assembly lot code week and year code AOZ8809ADI-03 (2.5 x 1.0 dfn) vc12 part number code assembly lot code week and year code aoz8809adi-05 (2.5 x 1.0 dfn) 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. 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. legal disclaimer alpha and omega semiconductor makes no representations or warranties with respect to the accuracy or completeness of the information provided herein and takes no liabilities for the consequences of use of such information or any product described herein. alpha and omega semiconductor reserves the right to make changes to such information at any time without further notice. this document does not constitute the grant of any intellectual property rights or representation of non-infringement of any third party?s intellectual property rights. life support policy alpha and omega semiconductor products are not authorized for use as critical components in life support devices or systems.
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