PSMF05_11 Datasheet, PDF (5/9 Pages) Protek Devices – MULTI-LINE TVS ARRAY

Only One Name Means ProTek’Tion™
application information
I/O 4
I/O 3
5
4
PSMF05
I/O 2
I/O 1
1
2
3
figure 1 - common-mode i/o port protection (unidirectional)
Circuit connectivity is as follows:
• I/O 1 is connected to pin 1.
• I/O 2 is connected to pin 3.
• I/O 3 is connected to pin 4.
• I/O 4 is connected to pin 5.
• Pin 2 is connected to ground.
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.
05123.R12 4/11
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