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首页 > 英联产品 > 分立器件 > 带TVS阵列的EMI滤波器 > CLC类EMI滤波器 |
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Key Specifications
Product Description The 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. It has 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 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.
Features
- 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 VR=2.5V)
- Protection and Filtering for Multi Lines
UM8511: Eight Lines
Applications
- Signal Lines Protection
- Cell Phone CCD Camera Lines
- Clamshell Cell Phones
Pin Configurations
  UM8511 Top View Device Schematic (8X)
Electrical Characteristics (TJ=25°C, unless otherwise noted)
Ordering Information
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Application Notes
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