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SLVU2.8-4 Datasheet(PDF) 5 Page - Protek Devices |
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SLVU2.8-4 Datasheet(HTML) 5 Page - Protek Devices |
5 / 8 page Only One Name Means ProTek’Tion™ www.protekdevices.com 05142.R14 10/10 Page 5 SLVU2.8-4 APPLICATION INFORMATION FIGURE 1 - BIDIRECTIONAL COMMON-MODE PROTECTION The SLVU2.8-4 provides 4 lines of protection in a common mode configuration. Circuit connectivity is as follows: • Line 1 connected to Pin 1. • Line 2 connected to Pin 7. • Line 3 connected to Pin 3. • Line 4 connected to Pin 5. • Pins 2, 4, 7 and 7 are connected to ground. • External diode to ground is a low capacitance diode of less than 10pF. CIRCUIT BOARD RECOMMENDATIONS Circuit board layout is critical for electromagnetic compatibility 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 vias. 1 2 4 8 3 5 6 7 Line Pair 1 Line Pair 2 Line Pair 1 Line Pair 2 FIGURE 2 - BIDIRECTIONAL DIFFERENTIAL-MODE PROTECTION The SLVU2.8-4 provides two line pairs in a differential mode configuration. Circuit connectivity is as follows: • Line Pair 1 connected to Pins 1, 2, 7 and 8. • Line Pair 2 connected to Pins 3, 4, 5 and 6. 1 2 4 8 3 5 6 7 Line 1 Line 2 Line 3 Line 4 |
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