
RClamp2504P & RClamp3304P
PROTECTION PRODUCTS
Applications Information
Device Connection for Protection of Four High-Speed
Data Lines
These devices are designed to protect low voltage data
Figure 1. Pin Configuration (Top Side View)
lines operating at 2.5 volts or 3.3 volts. When the
voltage on the protected line exceeds the TVS working
1
6
voltage, the steering diodes are forward biased,
conducting the transient current away from the
sensitive circuitry, through the internal TVS to ground.
Data lines are connected at pins 1, 2, 5 and 6. The
2
3
Gnd
5
4
center pin should be connected directly to a ground
plane. The path length is kept as short as possible to
minimize parasitic inductance. For best results,
multiple micro-vias connected to ground are
recommended. Pins 3 and 4 are not connected.
Note that pin 3 is connected internally to the cathode
of the low voltage TVS. However, due to the snap-
back characteristics of the EPD TVS, this pin should
not be directly connected to a DC supply voltage.
P i n
1 , 2 , 5 , 6
4
3
C e n t e r T a b
I d e n t i f i c a t i o n
I n p u t / O u t p u t L i n e s
N o t C o n n e c t e d
2 . 5 V o r 3 . 3 V
( D o n o t c o n n e c t t h i s p i n t o a D C s u p p l y )
G r o u n d
Protection of Four Data Lines
1
Gnd
? 2007 Semtech Corp.
6
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