描述 Description

The CM1230 is a family of 2, 4 and 8 channel, very low capacitance ESD protection diode arrays in a CSP form factor. It is ideal for protecting systems with high data and clock rates or for circuits that need low capacitive loading. Each channel consists of a pair of ESD diodes that act as clamp diodes to steer ESD current pulses to either the positive or negative supply rail. A zener diode is integrated between the positive and negative supply rails. The VCC rail is protected from ESD strikes and eliminates the need for a bypass capacitor to absorb positive ESD strikes to ground. Each channel can safely dissipate ESD strikes of ±8kV, meeting the Level 4 requirement of the IEC61000-4-2 international standard as well as ±15kV air discharges per the IEC61000-4-2 specification.

特性 Features

? Two, four, and eight channels of ESD protection
? Low loading capacitance of 0.8pF typical
? Channel I/O to GND capacitance difference of 0.02pF typical is ideal for differential signals
? Minimal capacitance change with temperature and voltage

應用 Application

? I/O port protection including USB, 1394 and serial ATA
? LCD and camera data lines in wireless handsets that use high-speed serial interfaces.
? mobile handsets,notebook computers, DSCs, MP3 players,PDAs, etc.

簡介

CM1230屬于電路保護的TVS-二極管。由制造生產的CM1230TVS - 二極管TVS 二極管是一種半導體器件，可用于限制或阻止特定電壓電平的浪涌。該系列產品使用二極管（只能單向導電的元器件）進行設計。TVS 是 Transient Voltage Suppression/Suppressor（瞬態(tài)電壓抑制/抑制器）的首字母縮寫。類型包括轉向（軌至軌）或齊納，具有單向通道、雙向通道、電壓 – 反關態(tài)、電壓 – 擊穿、電壓 – 箝位、電流 – 峰值脈沖、功率 – 峰值脈沖和電源線路保護等特征。