Microsoft Word - SLVU2.8-4 Rev04.doc

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1 Low Capacitance TVS Array Description The is low capacitance transient voltage suppressor for high speed data interface that designed to protect sensitive electronics from damage or latch-up due to ESD lightning, and other voltage induced transient events. All pins are rated to withstand 25kv ESD pulses using the IEC contact discharge method, which can meet the requirement of level 4. S Feature 500W peak pulse power (t P = 8/20μs) SOP-8 package Working voltage: 2.8V Low clamping voltage Low capacitance RoHS Compliant Transient Protection for High Speed Data Lines to IEC (ESD)±15kV(air),±8kV(Contact) IEC (EFT) 40A(5/50ns) IEC (lightning) 24A(8/20us) Applications Video/Audio input WAN/LAN Equipment Personal Digital Assistant (PDA) Ethernet - 10/100/1000 Base T Electrical characteristics per line@( unless otherwise specified) Parameter Symbol Conditions Min. Typ. Max. Units Reverse Stand-off Voltage V RWM 2.8 V Reverse Breakdown Voltage V BR I t = 1mA V Reverse Leakage Current I R V RWM =2.8V, T=25 1 μa Clamping Voltage V C I PP = 1A, t P = 8/20μs 6.0 V Clamping Voltage V C I PP =5A, t P = 8/20μs 9.0 V Junction Capacitance C J V R =0V, f = 1MHz pf Absolute maximum rating@25 Rating Symbol Value Units Peak Pulse Power (t p =8/20μs) P pp 500 W Operating Temperature T J -55 to +150 Storage Temperature T STG -55 to +150 Rev

2 Typical Characteristics Fig1. Pulse Waveform Fig2. Power Derating Curve Fig3. Forward Voltage vs. Forward Current Configuration Diagram Unidirectional Common-Mode Protection (Figure 4) The provides up to four lines of protection in a common-mode configuration as depicted in figure 4. Circuit connectivity is as follows: Line 1 is connected to Pin 1 Line 2 is connected to Pin 7 Line 3 is connected to Pin 3 Line 4 is connected to Pin 5 Pins 2, 4, 6 and 8 are connected to ground Fig4. Rev

3 Bidirectional Common-Mode Protection (Figure 5) The provides up to two lines of protection in a common-mode configuration as depicted in figure 5. Circuit connectivity is as follows: Line 1 is connected to Pins 1 & 8 Line 2 is connected to Pins 4 & 5 Pins 2, 3, 6, and 7 are connected to ground Fig5. Bidirectional differential-mode Protection (Figure 6) The provides up to two-line pairs of protection in a differential-mode configuration as depicted in figure 6. Circuit connectivity is as follows: Line Pair 1 is connected to Pins 1 & 2 Line Pair 1 is connected to Pins 7 & 8 Line Pair 2 is connected to Pins 3 & 4 Line Pair 2 is connected to Pins 5 & 6 Fig6. Circuit Board Layout Protection Circuit board layout is critical for Electromagnetic Compatibility (EMC) protection. The following guidelines are recommended: The protection device should be placed near the input terminals or connectors, the device will divert the transient current immediately before it can be coupled into the nearby traces The path length between the TVS device and the protected line should be minimized. All conductive loops including power and ground loops should be minimized. The transient current return path to ground should be kept as short as possible to reduce parasitic inductance. Ground planes should be used whenever possible. For multilayer PCBs, use ground Rev

4 Product dimension Rev

5 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: 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

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