CLT3-4B電路保護(hù)的TVS-混合技術(shù)規(guī)格書PDF中文資料

CLT3-4B屬于電路保護(hù)的TVS-混合技術(shù)。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的CLT3-4BTVS - 混合技術(shù)混合技術(shù) TVS（瞬態(tài)電壓抑制器）產(chǎn)品族中的產(chǎn)品屬于過(guò)壓保護(hù)產(chǎn)品，其中結(jié)合了基于多種技術(shù)的保護(hù)機(jī)制，例如串聯(lián)連接的 MOV（金屬氧化物壓敏電阻）和 GDT（氣體放電管），旨在同時(shí)獲得低漏電流和自恢復(fù)箝位工作特性。

Description

The CLT3-4 is a quadruple input digital termination device designed for 24 V dc automation applications. It provides the front-end circuitry of a digital input module (I/O) in industrial automation, and drives an isolating opto-coupler.

Features

■ 4 channel topology

■ Wide range input dc Voltage:

– VI= - 0.3 to 30 V with RI = 0

– VI = - 30 to 30 V with RI = 1.8 kΩ

– Low side configuration with common ground

■ Current limiter:

– IGEN = 3 mA

– Input current limiter activation voltage < 5 V

– Temperature compensated operation

■ Opto-coupler drive:

– No coupler activation below 1.5 mA input current

■ Input protection (RI = 1.2 kΩ):

– IEC 61000-4-2 electrostatic discharge ESD, Class 3

In contact, ± 6 kV; in air, ± 8 kV

Level B: temporary disruption; no change of opto-coupler state

– IEC 61000-4-5 voltage surge, Class 3

± 1000 V with 42 Ω serial resistor in differential mode

Level B: temporary disruption

– IEC 61000-4-4 transient burst immunity

± 4 kV peak voltage; 5 kHz repetitive rate

Level A: fully functional

■ Operating ambient temperature: - 25 to 85° C

Benefits

■ Reduced overall dissipation

■ Compact with high integration

■ Enables input to meet type 1 and 3 characteristic of IEC 61131-2 standard

■ Compatible operation with 2 and 3 wires proximity sensor according EN60947-5-2 standard

■ Insensitive to the on state sensor impedance

■ Surface mount package for highly automated assembly

■ Enhanced functional reliability

Applications

■ Industrial automation

■ Programmable logic controller

■ Communication field bus nodes

■ Peripheral input / output modules

■ Machine tool interface