PSOT03LC_11 Datasheet, PDF (6/9 Pages) Protek Devices – 500 WATT ULTRA LOW CAPACITANCE TVS ARRAY

Only One Name Means ProTek’Tion™
application information
I/O LINE
1
2
3
3
2
1
PSOT03LC - PSOT36LC
GND
figure 1 - common mode i/o port protection
Two PSOTxxLC devices used in parallel. Circuit connectivity is as follows:
• I/O Line connected to Device 1, Pin 1.
• I/O Line connected to Device 2, Pin 2.
• Device 1, Pin 2 connected to ground.
• Device 2, Pin 1 connected to ground.
• Device 1 and 2, Pin 3 not connected.
I/O 1
1
2
3
3
2
1
I/O 2
figure 1 - differential mode ethernet protection
Two PSOTxxLC devices used in parallel. Circuit connectivity is as follows:
• I/O Line 1 connected to Device 1, Pin 1.
• I/O Line 1 connected to Device 2, Pin 2.
• I/O Line 2 connected to Device 1, Pin 1.
• I/O Line 2 connected to Device 2, Pin 2.
• Device 1 and 2, Pin 3 not connected.
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 dedicated ground planes
05066.R7 9/10
Page 6
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