حفاظت مدار محدودکننده‌های ولتاژ گذرا (تی وی اس) دیودهای تی وی اس

Product Attributes

Introduction

CM1293A−04SO has been designed to provide ESD protection for electronic components or subsystems requiring minimal capacitive loading. This device is ideal for protecting systems with high data and clock rates or for circuits requiring low capacitive loading. Each ESD channel consists of a pair of diodes in series that steer the positive or negative ESD current pulse to either the positive (Vₚ) or negative (Vₙ) supply rail. A Zener diode is embedded between Vₚ and Vₙ which helps protect the V₍₎₎ rail against ESD strikes. This device protects against ESD pulses up to ±8 kV (contact discharge) per the IEC 61000−4−2 Level 4 standard. This device is particularly well−suited for protecting systems using high−speed ports such as USB2.0, IEEE1394 (FireWire, i.LINK), Serial ATA, DVI, HDMI, and corresponding ports in removable storage, digital camcorders, DVD−RW drives and other applications where extremely low loading capacitance with ESD protection are required in a small package footprint.

Features

• Four Channels of ESD Protection
• Provides ESD Protection to IEC61000−4−2 ±8 kV Contact Discharge
• Low Loading Capacitance of 2.0 pF Max
• Low Clamping Voltage
• Channel I/O to I/O Capacitance 1.5 pF Typical
• Zener Diode Protects Supply Rail and Eliminates the Need for External By−Pass Capacitors
• Each I/O Pin Can Withstand over 1000 ESD Strikes
• This Device is Pb−Free and is RoHS Compliant

Applications

• DVI Ports, HDMI Ports in Notebooks, Set Top Boxes, Digital TVs, LCD Displays
• Serial ATA Ports in Desktop PCs and Hard Disk Drives
• PCI Express Ports
• General Purpose High−Speed Data Line ESD Protection