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PDF EMIF01-10005W5 Data sheet ( Hoja de datos )

Número de pieza EMIF01-10005W5
Descripción EMI FILTER INCLUDING ESD PROTECTION
Fabricantes STMicroelectronics 
Logotipo STMicroelectronics Logotipo



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No Preview Available ! EMIF01-10005W5 Hoja de datos, Descripción, Manual

®
Application Specific Discretes
A.S.D.TM
EMIF01-10005W5
EMI FILTER
INCLUDING ESD PROTECTION
MAIN APPLICATIONS
Where EMI filtering in ESD sensitive equipment is required :
Computers and printers
Communication systems
Mobile phones
MCU Boards
DESCRIPTION
The EMIF01-10005W5 is a highly integrated array
designed to suppress EMI / RFI noise in all systems
subjected to electromagnetic interferences.
Additionally, this filter includes an ESD protection circuitry
which prevents the protected device from destruction when
subjected to ESD surges up to 15 kV.
SOT323-5L
FUNCTIONAL DIAGRAM
BENEFITS
Cost-effectiveness compared to discrete solution
EMI bi-directional low-pass filter
High efficiency in ESD suppression.
High flexibility in the design of high density boards
Very low PCB space consuming : 4.2 mm2 typically
High reliability offered by monolithic integration
COMPLIES WITH THE FOLLOWING STANDARD:
IEC 1000-4-2
15kV (air discharge)
8 kV (contact discharge)
ESD response to IEC1000-4-2 (16 kV air discharge)
I1
GND
I2
RI/O = 100
CIN = 50pF
Filtering response
dB
0
O1
O2
-10
TM : ASD is trademark of STMicroelectronics.
May 1999 - Ed: 1
-20
-30
1
f(MHz)
10 100
1000 2000
1/10

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EMIF01-10005W5 pdf
EMIF01-10005W5
The measurements shown here after illustrate very clearly (Fig. A5a) the high efficiency of the ESD protection :
- no influence of the parasitic inductances on Vout stage
- Vout clamping voltage very close to VBR
Fig A5 : Remaining voltage at both stages S1 (Vin) and S2 (Vout) during ESD surge
a) Positive surge
b) Negative surge
Please note that the EMIF01-10005W5 is not only acting
for positive ESD surges but also for negative ones. For
these kind of disturbances it clamps close to ground
voltage as shown in Fig. A5b.
NOTE: DYNAMIC RESISTANCE MEASUREMENT
Fig A6 : Rd measurement current wave
I
IPP
As the value of the dynamic resistance remains stable for
a surge duration lower than 20µs, the 2.5µs rectangular
surge is well adapted. In addition both rise and fall times
are optimized to avoid any parasitic phenomenon during
the measurement of Rd.
2 µs
2.5 µs
2.5µs duration measurement wave
t
5/10

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