PESD3V3L5UY PHILIPS [NXP Semiconductors], PESD3V3L5UY Datasheet - Page 8

• Manufacturer Part Number: PESD3V3L5UY
• Description: Low capacitance 5-fold ESD protection diode arrays in SOT363 package
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
APPLICATION INFORMATION
The PESDxL5UY is designed for the uni-directional protection of up to five lines or bi-directional protection of four lines
from the damage caused by Electrostatic Discharge (ESD) and surge pulses. The PESDxL5UY may be used on lines
where the signal polarities are above or below ground. PESDxL5UY can withstand and provides protection from a surge
of 25 watts peak pulse power per line for a 8/20 s waveform.
Circuit board layout and protection device placement
Circuit board layout is critical for the suppression of ESD,
Electrical Fast Transient (EFT) and surge transients. The
following guidelines are recommended:
1. The protection device should be placed as closely as
2. The path length between the protection device and the
3. Parallel signal paths should be kept to a minimum.
4. Running protection conductors in parallel with
5. All printed-circuit board conductive loops (including
6. The length of the transient return path to ground
7. The use of shared transient return paths to a common
8. Ground planes should be used whenever possible.
9. For multilayer printed-circuit boards, ground vias
2004 Mar 23
Low capacitance 5-fold ESD protection
diode arrays in SOT363 package
Fig.9
possible to the input terminal or connector.
protected line should be as short as possible.
unprotected conductor should be avoided.
power and group loops) should be kept to a minimum.
should be kept to a minimum.
ground point should be avoided.
should be used.
Typical application for uni-directional
protection of five lines.
high speed data lines
PESDxL5UY
001aaa216
GND
8
Fig.10 Typical application for bi-directional
protection of four lines.
high speed data lines
PESD3V3L5UY;
PESD5V0L5UY
PESDxL5UY
Product specification
001aaa214
GND