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SMDA24C Datasheet(PDF) 5 Page - Semtech Corporation |
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SMDA24C Datasheet(HTML) 5 Page - Semtech Corporation |
5 / 7 page 5 ã 2000 Semtech Corp. www.semtech.com PROTECTION PRODUCTS PROTECTION PRODUCTS SMDA05C THRU SMDA24C Circuit Diagram I/O Line Protection Device Connection for Protection of Four Data Lines The SMDAxxC series devices are designed to protect up to four data lines. The devices are connected as follows: l The SMDAxxC are bidirectional devices and are designed for use on lines where the normal operat- ing voltage is above and below ground. Pins 1, 2, 3, and 4 are connected to the protected lines. Pins 5, 6, 7, and 8 are connected to ground. Since the device is electrically symmetrical, these connec- tions may be reversed. The ground connections should be made directly to the ground plane for best results. The path length is kept as short as possible to reduce the effects of parasitic induc- tance in the board traces. Circuit Board Layout Recommendations for Suppres- sion of ESD. Good circuit board layout is critical for the suppression of ESD induced transients. The following guidelines are recommended: l Place the TVS near the input terminals or connec- tors to restrict transient coupling. l Minimize the path length between the TVS and the protected line. l Minimize all conductive loops including power and ground loops. l The ESD transient return path to ground should be kept as short as possible. l Never run critical signals near board edges. l Use ground planes whenever possible. 1 2 3 45 6 7 8 Ground From Connector To Protected Device Typical Connection 1 2 3 45 6 7 8 Applications Information |
Similar Part No. - SMDA24C |
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Similar Description - SMDA24C |
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