描述 Description

The CM1223 family of diode arrays are designed to provide ESD protection for electronic components or subsystems requiring minimal capacitive loading. These devices are 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, which 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, to absorb positive ESD strikes and provide ESD protection for the VP rail. An additional diode is integrated to serve as backdrive current protection. The CM1223 protects against ESD pulses up to ±8kV per the IEC 61000-4-2 standard. In addition, all pins are protected from contact discharges of greater than ±15kV as outlined by the MIL-STD-883D (Method 3015) specification for Human Body Model (HBM)ESD. These devices are particularly well-suited for protecting systems using high-speed ports such as USB2.0,IEEE1394 (Firewire?, iLink?), serial ATA, DVI, HDMI and corresponding ports in removable storage, digital camcorders, DVD-RW drives, as well as other applications where extremely low loading capacitance with ESD protection are required in a small package footprint. The CM1223 family of devices are manufactured with RoHS-compliant, lead-free packaging.

特性 Features

? Two, four, and eight channels of ESD protection with integrated backdrive protection on all lines
? Low channel input capacitance of 1.0pF (typical) with minimal capacitance change with temperature and voltage
? Channel I/O to GND capacitance difference of 0.02pF typical is ideal for differential signals
? Mutual capacitance between signal pin and adjacent signal pin at 0.11pF (typical)
? Zener diode protects supply rail and eliminates the need for external bypass capacitors

應(yīng)用 Application

? General purpose high-speed data line ESD protection
? Digital TV, Set Top Box, PC/Notebook, Gaming

簡(jiǎn)介

CM1223屬于電路保護(hù)的TVS-二極管。由制造生產(chǎn)的CM1223TVS - 二極管TVS 二極管是一種半導(dǎo)體器件，可用于限制或阻止特定電壓電平的浪涌。該系列產(chǎn)品使用二極管（只能單向?qū)щ姷脑骷┻M(jìn)行設(shè)計(jì)。TVS 是 Transient Voltage Suppression/Suppressor（瞬態(tài)電壓抑制/抑制器）的首字母縮寫(xiě)。類(lèi)型包括轉(zhuǎn)向（軌至軌）或齊納，具有單向通道、雙向通道、電壓 – 反關(guān)態(tài)、電壓 – 擊穿、電壓 – 箝位、電流 – 峰值脈沖、功率 – 峰值脈沖和電源線(xiàn)路保護(hù)等特征。