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Key Specifications
Part Number Description Status SubFamily Transient Standards L (nH) R (Ohm) C (pF), VR=2#5V Attenuation @ 800 MHz (db) Attenuation @ 2#5 GHz (db) VRWM MAX (V) IR MAX at VRWM uA at 25°C VBR MIN (V) CTOT MAX (pF) L-G Lines: Uni-directional Protection Lines: Bi-directional Protection Pin/Package EV Kit Available?
UM4411 4-Line RC EMI Filter with Integrated ESD Protection ACTIVE CRC Filter IEC 61000-4-2 0 100 10 -36 -32 5 0.1 6 20 4 0 8/DFN 1.7×1.3
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Product Description
 
The UM4411 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 silicon-avalanche technology for superior clamping performance and DC electrical characteristics. It has been optimized for protection of color LCD panels in cellular phones and other portable electronics.
The device consists of four identical circuits comprised of TVS diodes for ESD protection, and a RC network for EMI filtering. A series resistor value of 100Ω and a capacitance value of 10pF are used to achieve 25dB minimum attenuation from 800 MHz 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 UM4411 is in an 8-pin, RoHS compliant DFN8 package. It measures 1.7mm × 1.3mm. The leads are spaced at a pitch of 0.4mm and are finished with lead-free Ni Pd. The small package makes it ideal for use in portable electronics such as cell phones, digital still cameras, and PDAs.
 
Features
 
- EMI/RFI Filter with Integrated TVS for ESD Protection
- ESD Protection to IEC 61000-4-2 (ESD) Level 4, ±15kV (Air), ±8kV (Contact)
- 25dB Minimum Attenuation: 800MHz to 2.5GHz
- Working Voltage: 5V
- Resistor: 100Ω ±15%
- Typical Capacitance: 10pF (VR=2.5V)
- Solid-State Technology
- DFN8 Package: 1.7mm × 1.3 mm
- Moisture Sensitivity Level 1
 
Applications
 
- EMI Filtering and ESD Protection for Data Lines
- Wireless Phones
- Handheld Products
- Notebook Computers
- LCD Displays
 
Pin Configurations  

                
 
Electrical Characteristics (TJ=25°C, unless otherwise noted)

Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
VRWM
Reverse Stand-Off Voltage
 
 
 
5.0
V
VBR
Reverse Breakdown Voltage
IT=1.0mA
6 .0
7.0
8.0
V
IR
Reverse Leakage Current
VRWM=3.3V
 
 
100
nA
RA
Total Series Resistance
IR=10mA
Each Line
85
100
115
Ω
Cd
Total Capacitance
Input to Gnd, Each Line
VR=0V, f=1MHz
16
20
24
pF
Cd
Total Capacitance
Input to Gnd, Each Line
VR=2.5V, f=1MHz
9
10
12
pF
f3dB
Cut-Off Frequency (Notes)
Above this frequency, appreciable attenuation occurs
 
150
 
MHz
Notes: 50Ω source and 50Ω load termination.
 
Ordering Information

Part Number
Packaging Type
Marking Code
Shipping Qty
UM4411
DFN8 1.7×1.3
44
3000pcs/7Inch
Tape & Reel
 
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