WS05R. Features SOT-143. Transient Voltage Suppressor IEC COMPATIBILITY (EN ) Pin 4. Pin 3. Pin 2. Pin 1 SOT-143 (Top View)

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1 Document: W, Rev: C Transient Voltage Suppressor Features 5 Watts Peak Power per Line (tp = 8/μs) Protects two I/O lines Low operating voltage: 5V Ultra Low capacitance(<.5pf) for high-speed interfaces Solid-state technology IEC COMPATIBILITY (EN6-) SOT- IEC 6-- (ESD) ±5kV (air), ±8kV (contact) IEC 6-- (EFT) A (5/5ns) IEC 6--5 (Lightning) A (8/μs) Mechanical Characteristics Applications JEDEC SOT- package Molding compound flammability rating: UL 9V- Marking : Making Code Packaging : Tape and Reel per EIA 8 RoHS/WEEE Compliant / Ethernet FireWire & USB Sensitive Analog Inputs Portable Electronics LAN/WAN equipment Video Line Protection Microcontroller Input Protection Circuit Diagram Schematic & PIN Configuration Pin Pin Pin Pin SOT- (Top View)

2 Absolute Maximum Rating Rating Symbol Value Units Peak Pulse Power(t p=8/μs) P PP 5 Watts Peak Pulse Current(t p=8/μs) I PP A Lead Soldering Temperature T L 6(sec) Operating Temperature T J -55 to + 5 Storage Temperature T STG -55 to +5 Electrical Parameters (T=5 ) IPP Symbol Parameter IPP Maximum Reverse Peak Pulse Current VC VRWM Clamping IPP Working Peak Reverse Voltage VPTF IR IPTF V BR VRWM VC IR Maximum Reverse Leakage VRWM VBR Breakdown IT Electrical Characteristics Parameter Symbol Conditions Minimum Typical Maximum Units Reverse Stand-Off Voltage V RWM 5. V Punch-Through Voltage V PT I PT=µA 6. V Reverse Leakage Current I R V RWM=5V, T=5. μa Clamping Voltage V C I PP=A, tp=8/μs 9.8 V Clamping Voltage V C I PP=A,tp=8/μs V Junction Capacitance C j Between I/O pins and Ground V R=V, f=mh Z Between I/O pins V R=V, f=mh Z 5 pf pf

3 Typical Characteristics Figure : Peak Pulse Power Vs Pulse Time Figure : Power Derating Curve Ppp Peak Pulse Power - Ppp(KW)..., Percent of Rated Power for Ipp t d Pulse Duration - µs Ambient Temperature - T A ( ) Percent Ipp Figure : Pulse Waveform. e -t Time (µs) td=ipp/ Waveform Paramters tr=8µs td=µs Clamping Voltage -Vc(V) 8 Figure : Clamping Voltage vs. Peak Pulse Current Peak Pulse Current -Ipp(A) Test Waveform Paramters tr=8µs td=µs 6 8 Figure 5: Forward Voltage vs. Forward Current Figure 6: Capacitance vs. Reverse Voltage Forward Voltage -VF(V) Waveform Paramters: tr=8µs td=µs 5 5 Forward Current -I F (A) Cj(VR)/Cj(VR=).. F=MHz Reverse Voltage -V R (V)

4 Application Information Device Connection Options for Protection of Two High-Speed Data Lines The TVS is designed to protect two data lines from transient over-voltages by clamping them to a fixed reference. When the voltage on the protected line exceeds the reference voltage (plus diode V F ) the steering diodes are forward biased, conducting the transient current away from the sensitive circuitry. Data lines are at pins and. The negative reference (REF) is connected at pin. This pin should be connected directly to a ground plane on the board for the best results. The path length is kept as short as possible to minimize parasitic inductance. The reference (REF) is connected at pin. The options for connecting the positive reference are as follows: Data Line and Power Supply Protection Using V CC as reference. To protect data lines and the power line, connect pin directly to the positive supply rail (). In this configuration the data lines are referenced to the supply voltage. The internal TVS diode prevents over- voltage to the supply rail. I/O I/O V CC To Protected IC. The can be isolated from the power supply by adding a series resistor between pin and V CC -A value of kω is recommended. The internal TVS and steering diodes remains biased, providing the advantage of lower capacitance. Data Line Protection with Bias and Power Supply Isolation Resistor I/O I/O V CC K. In applications where no positive supply reference is available, or complete supply isolation is desired, the internal TVS may be used as the reference. In this case, pin is not connected. The steering diodes will begin to conduct when the voltage on the protected line exceeds the working voltage of the TVS (plus one diode drop). To Protected IC Data Line Protection Using Internal TVS Diode as Reference I/O I/O NC To Protected IC

5 Typical Applications on HDMI Port Application HDMI Transmitter HDMI Display TMDS_D+ TMDS_D- TMDS_D+ TMDS_D- TMDS_D+ TMDS_D- TMDS_D+ TMDS_D- VGA VGA TMDS_D+ TMDS_D- TMDS_CK+ TMDS_CK- TMDS Transmitter TMDS Recevier TMDS_D+ TMDS_D- TMDS_CK+ TMDS_CK- HDMI ports have become standard features on today s consumer electronics devices, such as digital TVs, DVD recorders, and set top boxes. The small geometry of a HDMI graphic chip will make it more susceptible to ESD and cable discharge events. The high-speed transmission requires the protection device to have low capacitance to maintain signal integrity and low clamping voltage to reduce stress on the IC. The offers full protection against ESD and its low capacitance of.6pf, ensures signal integrity. on USB. Port Application Vbus USB. Controller Vbus D+ D- USB. Port GND The can also be used to protect USB. ports on monitors, computers, peripherals or portable systems. Each device is able to protect single USB. port. When the voltage on the data lines exceed the bus voltage (plus one diode drop), the internal diodes are forward biased conducting the transient current away from the protected controller chip. The TVS diode directs the surge to ground. The TVS diode also acts to suppress ESD strikes directly on the voltage bus. Thus, both power and data lines are protected.

6 on ISDN S/T Interface Application R Line Out R Line In To S-BUS ISDN S/T R Line Out Line In R on / Ethernet Application TX+ TX+ TX- RX+ / ETHERNET PHY RX+ TX- RX- To Twisted-Pair Network RX- VCC VCC GND

7 Outline Drawing SOT- PACKAGE OUTLINE D e A H e/ B SEATING PLANE C GAUGE PLANE.5 L θ c SOT- E E DETAIL A L DIMENSIONS e b aaa M C A B b N bbb M A A C A B A C ccc C SEATING PLANE SIDE VIEW NOTES:. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).. DATUMS AND TO BE DETERMINED AT DATUM PLANE. DIMENSIONS E AND D DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.. REFERENCE JEDEC STD TO-5,VARIATION D. SYMBOL MILLIMETER INCHES MIN MAX MIN MAX A A.... A b..5.. b c D e e.typ.8typ E E L.55REF.REF L..5.. θ 8 8 X X DIMENSIONS Notes Z C G E E Y DIM INCHES MILLIMETERS C.87. E.76.9 E.68.7 G..8. This land pattern is for reference purposes only consult your manufacturing group to ensure your company s manufacturing guidelines are met.. Reference IPC-SM-78A. X.9. Y X.7. y.55. X X z..6 Marking Codes Part Number Marking Code R5