PTVSHC3D4V5U

PTVSHC3D4V5U TVS Protector Description The PTVSHC3D4V5U Transient Voltage Suppressor is designed to replace multilayer varistors (MLVs) in portable applications such as cell phones, notebook computers, and PDA’s. They feature large cross-sectional area junctions for conducting high transient currents, offer desirable electrical characteristics for board level protection, such as fast response time, lower operating voltage, lower clamping voltage and no device degradation when compared to MLVs. The PTVSHC3D4V5U protects sensitive semiconductor components from damage or upset due to electrostatic discharge (ESD) and other voltage induced transient events. The PTVSHC3D4V5U is available in a SOD-323 package with working voltages of 4.5 volt. Feature Applications  1400W Peak pulse power per line (tP = 8/20μs)  Cell phone handsets and accessories  SOD-323 package  Personal digital assistants (PDA’s)  Response time is typically < 1 ns  Notebooks, desktops, and servers  Protect one I/O or power line  Portable instrumentation  Low clamping Voltage  Cordless phones  RoHS compliant  Digital cameras  Transient protection for data lines to IEC 61000-4-2(ESD)  Peripherals ±30KV(air), ±30KV(contact); IEC 61000-4-4 (EFT) 40A (5/50ns)  MP3 players IEC 61000-4-5 (Lightning) 70A (8/20us) Mechanical Characteristics  Lead finish:100% matte Sn(Tin)  Mounting position: Any  Qualified max reflow temperature:260℃  Device meets MSL 3 requirements  Pure tin plating: 7 ~ 17 um  Pin flatness:≤3mil Rev.06.3 1 www.prisemi.com Transient Voltage Suppressor PTVSHC3D4V5U Electronics Parameter Symbol VRWM IR VBR Parameter I IF Peak Reverse Working Voltage Reverse Leakage Current @ VRWM Breakdown Voltage @ IT IT Test Current IPP Maximum Reverse Peak Pulse Current VC Clamping Voltage @ IPP PPP Peak Pulse Power CJ Junction Capacitance IF Forward Current VF Forward Voltage @ IF V VC VBR VRWM IR VF IT IPP Electrical characteristics per line@25℃( unless otherwise specified) Parameter Symbol Peak Reverse Working Voltage Breakdown Voltage Conditions Min. Typ. VRWM Units 4.5 V 7 V 5 μA VBR It =1mA Reverse Leakage Current IR VRWM =4.5V Clamping Voltage VC IPP=40A tP = 8/20μs 9.5 11 V Clamping Voltage VC IPP=70A tP = 8/20μs 11 12 V Clamping Voltage VC IPP=100A tP = 8/20μs 13.5 15 V Junction Capacitance Cj VR=0V 850 950 pF f = 1MHz 5 Max. 750 Absolute maximum rating@25℃ Rating Symbol Value Units Peak Pulse Power ( tP = 8/20μS ) Ppp 1400 W Lead Soldering Temperature TL 260 (10 sec) ℃ Operating Temperature TJ -55 to 125 ℃ TSTG -55 to 150 ℃ Storage Temperature Rev.06.3 2 www.prisemi.com Transient Voltage Suppressor PTVSHC3D4V5U Typical Characteristics tf=8μs IPP – Peak Pulse Current - % of IPP 100 100 60 80 % Of Rated Power 80 tP =20μs(IPP /2) 40 60 40 20 20 0 0 5 10 15 t - Time -μs 20 25 0 30 0 25 50 75 100 125 TL – Lead Temperature - ℃ Fig 1.Pulse Waveform Fig 2.Power Derating Curve 16 1000 f=1MHz Pulse waveform: tp=8/20us 14 800 C-Junction capacitance (pF) 12 VC-Clamping Voltage (V) 150 10 8 6 4 600 400 200 2 0 0 20 40 60 80 IPP-Peak pulse current (A) 100 0 120 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 VR-Reverse voltage (V) Fig 3. Clamping voltage vs. Peak pulse current Fig 4. Capacitance vs. Reveres voltage 10000 8 6 IR(nA) Peak Pulse Power (W) 1000 4 100 2 10 1 10 100 Pulse Duration(us) 0 1000 Fig 5. Non Repetitive Peak Pulse Power vs. Pulse time Rev.06.3 3 0 25 50 75 100 125 150 Fig 6. Typical Leakage Current vs. Temperature www.prisemi.com Transient Voltage Suppressor PTVSHC3D4V5U Solder Reflow Recommendation Peak Temp=257℃, Ramp Rate=0.802deg. ℃/sec 280 240 200 160 120 80 40 0 0 30 60 90 120 150 180 240 210 270 300 330 360 390 420 450 480 Time (sec) PCB Design For TVS diodes a low-ohmic and low-inductive path to chassis earth is absolutely mandatory in order to achieve good ESD protection. Novices in the area of ESD protection should take following suggestions to heart:  Do not use stubs, but place the cathode of the TVS diode directly on the signal trace.  Do not make false economies and save copper for the ground connection.  Place via holes to ground as close as possible to the anode of the TVS diode.  Use as many via holes as possible for the ground connection.  Keep the length of via holes in mind! The longer the more inductance they will have. Rev.06.3 4 www.prisemi.com Transient Voltage Suppressor PTVSHC3D4V5U Product dimension (SOD-323) C Dim A E B F D H Inches Millimeters MIN MAX MIN MAX A 0.063 0.075 1.60 1.90 B 0.045 0.057 1.15 1.45 C 0.090 0.106 2.30 2.70 D 0.031 0.043 0.80 1.00 E 0.010 0.01 0.25 0.40 F 0.004 0.007 0.09 0.18 H 0.000 0.004 0.00 0.10 3.00 0.90 0.80 Suggested PCB Layout Unit:mm Marking information H3 Ordering information Device Package Reel Shipping PTVSHC3D4V5U SOD-323 (Pb-Free) 7" 3000 / Tape & Reel Rev.06.3 5 www.prisemi.com Transient Voltage Suppressor PTVSHC3D4V5U IMPORTANT NOTICE and are registered trademarks of Prisemi Electronics Co., Ltd (Prisemi) ,Prisemi reserves the right to make changes without further notice to any products herein. Prisemi makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Prisemi assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in Prisemi data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Prisemi does not convey any license under its patent rights nor the rights of others. The products listed in this document are designed to be used with ordinary electronic equipment or devices, Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. Website: http://www.prisemi.com For additional information, please contact your local Sales Representative. ©Copyright 2009, Prisemi Electronics is a registered trademark of Prisemi Electronics. All rights are reserved. Rev.06.3 6 www.prisemi.com