PESDNC2FD3V3U

PESDNC2FD3V3U Uni-directional 3.3V Normal Capacitance ESD Protector Description The PESDNC2FD3V3U 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 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 PESDNC2FD3V3U protects sensitive semiconductor components from damage or upset due to electrostatic discharge (ESD) and other voltage induced transient events. The PESDNC2FD3V3U is available DFN1006-2L(Bottom View) in a DFN1006-2L package with working voltages of 3.3 volt. It gives designer the flexibility to protect one unidirectional line in applications where arrays are not practical. Feature  50W peak pulse power per line (tP = 8/20μs)  DFN1006-2L  Replacement for MLV(0402) package  Unidirectional configurations  Response time is typically < 1 ns  Protect one I/O or power line  Low clamping voltage  RoHS compliant  Transient protection for data lines to Pin 1 Pin 2 Circuit Diagram IEC 61000-4-2(ESD) ±30KV(air), ±30KV(contact); IEC 61000-4-4 (EFT) 40A (5/50ns) Applications  Cell phone handsets and accessories  Personal digital assistants (PDA’s)  Notebooks, desktops, and servers  Portable instrumentation  Cordless phones  Digital cameras  Peripherals  MP3 players PT Marking (Top View) Mechanical Characteristics  Mounting position: Any  Qualified max reflow temperature:260℃  Device meets MSL 1 requirements  DFN1006-2L without plating Rev.06.5 1 www.prisemi.com ESD Protector PESDNC2FD3V3U Electronics Parameter Symbol Parameter VRWM Peak Reverse Working Voltage IR Reverse Leakage Current @ VRWM VBR 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 IF I V VC VBR VRWM IR VF IT IPP Electrical characteristics per line@25℃( unless otherwise specified) Parameter Symbol Conditions Min. Typ. Max. Units Working Voltage VRWM 3.3 V Breakdown Voltage VBR It =1mA Reverse Leakage Current IR VRWM =3.3V Forward Voltage VF IF =10mA 0.8 V Clamping Voltage VC TLP = 16A, tp = 100ns 9.8 V Dynamic resistance RDYN 0.2 Ω Clamping Voltage VC IPP=1A tP = 8/20μS 6.5 8.0 V Clamping Voltage VC IPP=5A tP = 8/20μS 8.0 10.0 V Junction Capacitance Cj VR=0V f = 1MHz 35 50 pF Junction Capacitance Cj VR=2.5V 20 27 pF 4.0 V 1 f = 1MHz μA Absolute maximum rating@25℃ Rating Symbol Value Units Peak Pulse Power ( tP = 8/20μS ) Ppp 50 W Lead Soldering Temperature TL 260 (10 sec) ℃ Operating Temperature TJ -55 to 125 ℃ TSTG -55 to 150 ℃ Storage Temperature Rev.06.5 2 www.prisemi.com ESD Protector PESDNC2FD3V3U Typical Characteristics 100 tf=8μs IPP 100 80 % Of Rated Power IPP – Peak Pulse Current - % of 80 60 tP =20μs(IPP /2) 40 60 40 20 20 0 0 5 10 15 20 25 0 30 0 25 50 t - Time -μs 75 100 125 TL – Lead Temperature - ℃ Fig 1.Pulse Waveform Fig 2.Power Derating Curve 10 50 f=1MHz Pulse waveform: tp=8/20us 40 C-Junction capacitance (pF) VC-Clamping Voltage (V) 9 8 7 6 5 0 30 20 10 0 1 2 3 4 IPP-Peak pulse current (A) 5 6 0 0.5 Fig 3. Clamping voltage vs. Peak pulse current 1.0 1.5 2.0 VR-Reverse voltage (V) 2.5 Fig 4. Capacitance vs. Reveres voltage 20 1000 V _pulse P ulse from a Transmission line 15 TLP_I + 100ns TLP _V DUT - 10 P in 1 to P in 2 T = 25 ℃ TLP Current - A Peak Pulse Power (W) 150 100 10 5 0 -5 -10 -15 -20 1 1 10 100 Pulse Duration(us) -6 -4 -2 0 2 4 6 8 10 Fig 6. TLP Measurement Fig 5. Non Repetitive Peak Pulse Power vs. Pulse time Rev.06.5 -8 TLP Voltage - V 1000 3 www.prisemi.com 12 ESD Protector PESDNC2FD3V3U Solder Reflow Recommendation Preliminary Heating 300 Soldering Cooling(in air) Temperature of Soldering 260℃ (+0,-5℃) 250 245℃ (+0,-5℃) 200 150 120℃ 100 100℃ 50 0 2 to 5 min more than 1 min Less than 10s Remark: Pb free for 260℃；Pb for 245℃. 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.06.5 4 www.prisemi.com ESD Protector PESDNC2FD3V3U Product dimension (DFN1006-2L) Inches A Millimeters Dim B C E 1 R 2 D MIN MAX MIN MAX A 0.013 0.020 0.34 0.498 B 0.000 0.002 0.00 0.05 C 0.037 0.043 0.95 1.080 D 0.022 0.026 0.55 0.65 E 0.016 0.024 0.40 0.60 F 0.008 0.012 0.20 0.30 H R F 0.015Typ. 0.001 0.40Typ. 0.005 0.05 0.15 H 1.20 0.50 0.60 0.70 Unit:mm Suggested PCB Layout Ordering information Device Package Reel Shipping PESDNC2FD3V3U DFN1006-2L (Pb-Free) 7" 10000 / Tape & Reel Rev.06.5 5 www.prisemi.com ESD Protector PESDNC2FD3V3U Load with information USER DIRECTION OF FEED Φ1.50 ± 0.10 2.00 ± 0.05 2.00 ± 0.05 4.00 ± 0.10 1.75 ± 0.10 3.50 ± 0.05 8.00 ± 0.10 Φ0.50 ± 0.05 Unit：mm Rev.06.5 6 www.prisemi.com ESD Protector PESDNC2FD3V3U 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.06.5 7 www.prisemi.com