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EClamp2378K Schematic ( PDF Datasheet ) - Semtech

Teilenummer EClamp2378K
Beschreibung ESD/EMI Protection
Hersteller Semtech
Logo Semtech Logo 




Gesamt 8 Seiten
EClamp2378K Datasheet, Funktion
PROTECTION PRODUCTS - EMIClampTM
Description
The EClampTM2378K 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 EClamp2378K is in a 16-pin, RoHS/WEEE compli-
ant, SLP3313P16 package. It measures 3.3 x 1.3 x
0.50mm. The leads are spaced at a pitch of 0.4mm
and are finished with lead-free NiPdAu. The small
package makes it ideal for use in portable electronics
such as cell phones, digital still cameras, and PDAs.
Features
EClamp2378K
ESD/EMI Protection
for Color LCD Interfaces
PRELIMINARY
‹ 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
‹ SLP3313P16 16-pin package
‹ RoHS/WEEE Compliant
‹ Nominal Dimensions: 3.3 x 1.3 x 0.50 mm
‹ Lead Pitch: 0.4mm
‹ Lead finish: NiPdAu
‹ 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
100 Ω
IN
OUT
10pF 10pF
GND
3.30
12
1.30
0.40 BSC
0.50
Device Schematic (8X)
Revision 7/18/2007
16 Pin SLP package (Bottom Side View)
Nominal Dimensions in mm
1 www.semtech.com






EClamp2378K Datasheet, Funktion
PROTECTION PRODUCTS
Applications Information - Spice Model
Line In
1.4nH
EClamp2378K
PRELIMINARY
1.4nH
Line Out
EClamp2378K Spice Model
© 2007 Semtech Corp.
EClamp2378K Spice Parameters
Parameter
Unit
D1 (TVS)
D2 (TVS)
IS Amp 2E-15 2E-15
BV Volt 7.42 7.42
VJ
Volt
0.775
0.775
RS
Ohm
1.00
1.00
IBV Amp 1E-3 1E-3
CJO
Farad
9.8E-12
9.8E-12
TT sec 2.541E-9 2.541E-9
M
--
0.246
0.246
N -- 1.1 1.1
EG eV 1.11 1.11
6
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