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EClamp2508K Schematic ( PDF Datasheet ) - Semtech

Teilenummer EClamp2508K
Beschreibung ESD/EMI Protection
Hersteller Semtech
Logo Semtech Logo 




Gesamt 8 Seiten
EClamp2508K Datasheet, Funktion
PROTECTION PRODUCTS - EMIClamp®
Description
The EClamp® 2508K device 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 3-pole induc-
tor - capacitor network for EMI/RFI filtering. A typical
inductor value of 17nH and a capacitor value of 12pF
are used to achieve 20dB minimum attenuation from
800MHz to 2.7GHz. 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 EClamp2508K is in a 16-pin, SLP3313P16 pack-
age. 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
EClamp2508K
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: 20dB minimum attenuation
800MHz to 2.7GHz
‹ TVS working voltage: 5V
‹ Inductor: 17nH (Typical)
‹ Capacitors: 12pF (Typical at VR = 2.5V)
‹ Protection and filtering for eight lines
‹ Solid-state technology
Mechanical Characteristics
‹ SLP3313P16 16-pin package
‹ PB-Free, Halogen Free, RoHS/WEEE Compliant
‹ Nominal Dimensions: 3.3 x 1.3 x 0.50mm
‹ Lead Pitch: 0.4mm
‹ Lead finish: NiPdAu
‹ Marking : Marking Code and Date Code
‹ Packaging : Tape and Reel
Applications
‹ Color LCD Protection
‹ Cell Phone CCD Camera Lines
‹ Clamshell Cell Phones
Circuit Diagram (Each Line)
Package Configuration
17nH
IN
12pF 12pF
OUT
GND
3.30
12
1.30
0.40 BSC
0.50
Device Schematic (8X)
Revision 04/14/2010
16 Pin SLP package (Bottom Side View)
Nominal Dimensions in mm
1 www.semtech.com






EClamp2508K Datasheet, Funktion
PROTECTION PRODUCTS
Applications Information - Spice Model
EClamp2508K
PRELIMINARY
Line In
0.5nH
L
16nH
0.5nH
Line Out
© 2010 Semtech Corp.
EClamp2508K Spice Model
EClamp2508K Spice Parameters
Parameter
Unit
D1 (TVS)
D2 (TVS)
IS
Amp
1.48E-14
1.48E-14
BV Volt 7.44 7.44
VJ Volt 0.75 0.75
RS
Ohm
0.53
0.53
IBV
Amp 1E-3
1E-3
CJO
Farad
19.4E-12 19.4E-12
TT
sec
2.541E-9
2.541E-9
M
--
0.25
0.25
N -- 1.1 1.1
EG eV 1.11 1.11
6
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