UM4501 Datasheet, PDF (1/12 Pages) Union Semiconductor, Inc. – Multi-line ESD/EMI Protections for Signal Lines

UM4501/4511/6501/8501/8511
Multi-line ESD/EMI Protections for Signal Lines
UM4501 DFN8 2.0×2.0
UM4511 DFN8 1.7×1.3
UM6501 DFN12 3.0×1.6
UM8501 DFN16 4.0×1.6
General Description
UM8511 DFN16 3.3×1.3
The UM4501/UM4511/UM6501/UM8501/UM8511 is a (L-C) low pass filter array with integrated
TVS diodes. It is designed to suppress unwanted EMI signals and provide electrostatic discharge
(ESD) protection in portable electronic equipment. This device utilizes solid-state silicon-avalanche
technology for superior clamping performance and DC electrical characteristics. They have been
optimized for protection of signal lines in cellular phones and other portable electronics.
The device consists of identical circuits comprised of TVS diodes for ESD protection, and a C-L-C
network for EMI filtering. A typical inductor value of 17nH and a capacitor value of 12pF are used to
achieve 19dB 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 UM4501 is in a RoHS compliant DFN8 2.0×2.0 package, the UM4511 is in a RoHS compliant
DFN8 1.7×1.3 package, the UM6501 is in a RoHS compliant DFN12 3.0×1.6 package, the UM8501
is in a RoHS compliant DFN16 4.0×1.6 package and the UM8511 is in a RoHS compliant DFN16
3.3×1.3 package. The leads are finished with lead-free. The small package makes it ideal for use in
portable electronics such as cell phones, digital still cameras, and PDAs.
Applications
Features
 Signal Lines Protection
 Cell Phone CCD Camera Lines
 Clamshell Cell Phones
 Bidirectional EMI Filter with Integrated TVS
for ESD Protection
 ESD Protection to IEC 61000-4-2 (ESD) Level
4, ±15kV (Air), ±8kV (Contact)
 Filter Performance: 19dB Minimum
Attenuation from 800MHz to 2.7GHz
 TVS Working Voltage: 5V
 Inductor: 17nH (Typical)
 Capacitors: 12pF (Typical at V_R=2.5V)
 Protection and Filtering for Multi Lines
UM4501/4511: Four Lines
UM6501: Six Lines
UM8501/8511: Eight Lines
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http://www.union-ic.com Rev.03 Apr.2016
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