PLC496_12 Datasheet, PDF (6/9 Pages) Protek Devices – 500 WATT ULTRA LOW CAPACITANCE TVS ARRAY

Only One Name Means ProTek’Tion™
application information
figure 1 - differential mode i/o port protection
Circuit connectivity is as follows:
• Pins 1, 4, 5 and 8 are connected to the data lines.
• Pins 2, 3, 6 and 7 are not connected.
figure 2 - COMMON MODE SENSOR PROTECTION
Circuit connectivity is as follows:
• Pins 1 and 8 connected to the dataline.
• Pins 4 and 5 connected to ground.
• Pins 2, 3, 6 and 7 are not connected.
circuit board recommendations
Circuit board layout is critical for electromagnetic compatibility protection. The follow-
ing 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 mini-
mized.
• 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.
PLC496
LINE 1 IN
1
2
3
4
LINE 2 IN
LINE 1 OUT
8
7
6
5
LINE 2 OUT
1
NC 2
NC 3
4
1
NC ₂
NC 3
4
8
7 NC
6 NC
5
8
7 NC
6 NC
5
05109.R9 9/12
Page 6
www.protekdevices.com