ESD/EMI Protection
for Color LCD Interfaces
PROTECTION PRODUCTS - EMIClamp
TM
Description
The EClamp
TM
2378P is a low pass filter array with
integrated TVS diodes. It is designed to suppress
unwanted EMI/RFI signals and provide electrostatic
discharge (ESD) protection in portable electronic
equipment. This state-of-the-art device utilizes solid-
state silicon-avalanche technology for superior clamp-
ing performance and DC electrical characteristics.
They have been optimized for protection of color
LCD panels in cellular phones and other portable
electronics.
The device consists of eight identical circuits comprised
of TVS diodes for ESD protection, and a resistor -
capacitor network for EMI/RFI filtering. A series
resistor value of 100Ω and a capacitance value of
10pF are used to achieve 30dB minimum attenuation
from 1.8GHz to 2.5GHz. The TVS diodes provide
effective suppression of ESD voltages in excess of
±15kV (air discharge) and ±8kV (contact discharge) per
IEC 61000-4-2, level 4.
The EClamp2378P is in a 16-pin, RoHS/WEEE compli-
ant, SLP4016P16 package. It measures 4.0 x 1.6 x
0.58mm. The leads are spaced at a pitch of 0.5mm
and are finished with lead-free NiPd. The small pack-
age makes it ideal for use in portable electronics such
as cell phones, digital still cameras, and PDAs.
EClamp2378P
PRELIMINARY
Features
Bidirectional EMI/RFI filter with integrated TVS
for ESD protection
ESD protection to
IEC 61000-4-2 (ESD) Level 4,
±15kV (air), ±8kV (contact)
Filter performance: 30dB minimum attenuation
1.8GHz to 2.5GHz
TVS working voltage: 5V
Resistor: 100Ω
+/− 15%
Typical Capacitance: 20pF (VR = 0V)
Protection and filtering for eight lines
Solid-state technology
Mechanical Characteristics
SLP4016P16 16-pin package
RoHS/WEEE Compliant
Nominal Dimensions: 4.0 x 1.6 x 0.58 mm
Lead Pitch: 0.5mm
Lead finish: NiPd
Marking : Marking Code
Packaging : Tape and Reel per EIA 481
Applications
Color LCD Protection
Cell Phone CCD Camera Lines
Clamshell Cell Phones
Circuit Diagram (Each Line)
Package Configuration
4.00
1 2
100
Ω
IN
10pF
10pF
OUT
1.60
0.50 BSC
GND
0.58
Device Schematic (8X)
Revision 12/6/2005
16 Pin SLP package (Bottom Side View)
Nominal Dimensions in mm
1
www.semtech.com
SEMTECH [ SEMTECH CORPORATION ]
