PTVSHC3D4V5B

PTVSHC3D4V5B ESD Protector Description The PTVSHC3D4V5B ESD protector 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 2 1 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 PTVSHC3D4V5B protects sensitive semiconductor components from damage or upset due to electrostatic discharge (ESD) and other voltage induced transient events. The PTVSHC3D4V5B is available in a SOD-323 package with working voltages of 4.5 volt. It is used to meet the ESD immunity requirements of IEC 61000-4-2, (±30kV air, ±30kV contact discharge) Feature Applications  2400W 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 Mechanical Characteristics  Lead finish:100% matte Sn(Tin)  Mounting position: Any  Qualified max reflow temperature:260℃  Pure tin plating: 7 ~ 17 um  Pin flatness:≤3mil Rev.06.3 1 www.prisemi.com ESD Protector PTVSHC3D4V5B Electronics Parameter I Symbol Parameter VRWM Peak Reverse Working Voltage IR Reverse Leakage Current @ VRWM VBR Breakdown Voltage @ IT IT Test Current IPP IT IR VHOLD VTRIG VRWM IPP Maximum Reverse Peak Pulse Current VC Clamping Voltage @ IPP PPP Peak Pulse Power CJ Junction Capacitance IR IT VC VRWM VC VTRIG V VHOLD IPP Electrical characteristics per line@25℃( unless otherwise specified) Parameter Symbo l Conditions Reverse Zener Voltage VZ IZT = 5mA Reverse Working Voltage (1) Breakdown Voltage(Pin1 to Pin2) Reverse Leakage Current Min. Typ. Max. Units 5.1 VRWM V 4.5 VBR It =1mA IR VRWM =4.5V V 4.6 V 2 μA (Pin1 to Pin2) Clamping Voltage(Pin1 to Pin2) VC IPP=20A tP = 8/20μs 8.5 11 V Clamping Voltage(Pin1 to Pin2) VC IPP=45A tP = 8/20μs 11 14 V Clamping Voltage(Pin1 to Pin2) VC IPP=90A tP = 8/20μs 18 21 V Clamping Voltage(Pin1 to Pin2) VC IPP=130A tP = 8/20μs 21 24 V Junction Capacitance Cj 260 300 pF VR=0V f = 1MHz Note 1: VRWM is the maximum reverse working voltage, or reverse stand-off voltage. ESD can protect signal line properly within its rated voltage. If the signal line's voltage is over V RWM, ESD will change to other state. Absolute maximum rating@25℃ Rating Symbol Value Units Peak Pulse Power ( tP = 8/20μS ) Ppp 2400 W Total Device Dissipation FR-5 Board PD 500 mW Lead Soldering Temperature TL 260 (10 sec) ℃ Operating Temperature TJ -55 to +150 ℃ TSTG -55 to +150 ℃ Storage Temperature Rev.06.3 2 www.prisemi.com ESD Protector PTVSHC3D4V5B Typical Characteristics tf=8μs IPP – Peak Pulse Current - % of IPP 100 100 80 % Of Rated Power 80 60 tP =20μs(IPP /2) 40 60 40 20 20 0 0 0 5 10 15 20 25 0 30 25 50 75 100 125 Fig 1.Pulse Waveform Fig 2.Power Derating Curve 375 28 f=1MHz C-Junction capacitance (pF) VC-Clamping Voltage (V) Pulse waveform: tp=8/20us 21 14 7 0 150 TL – Lead Temperature - ℃ t - Time -μs 300 225 150 75 0 0 30 60 90 120 IPP-Peak pulse current (A) 0 150 Fig 3. Clamping voltage vs. Peak pulse current 1 2 3 VR-Reverse voltage (V) 4 Fig 4. Capacitance vs. Reveres voltage Peak Pulse Power (W) 10000 1000 100 10 1 10 100 Pulse Duration(us) 1000 Fig 5. Non Repetitive Peak Pulse Power vs. Pulse time Rev.06.3 3 www.prisemi.com 5 ESD Protector PTVSHC3D4V5B 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 ESD Protector PTVSHC3D4V5B Product dimension (SOD-323) Inches C Millimeters Dim A E B F 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 D H 3.00 0.40 0.50 Unit:mm Ordering information Device Package Shipping PTVSHC3D4V5B SOD-323 (Pb-Free) 3000 / Tape & Reel Rev.06.3 5 www.prisemi.com ESD Protector PTVSHC3D4V5B 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