CLT3-4B中文资料电流受限过压保护四路数字终端数据手册ST规格书

描述 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.

特性 Features

• Operating ambient temperature: - 25 to 85° C
• 4 channel topology
• Current limiter:IGEN = 3 mAInput current limiter activation voltage < 5 VTemperature compensated operation
• Wide range input dc Voltage:VI= - 0.3 to 30 V with RI = 0VI = - 30 to 30 V with RI = 1.8 kΩLow side configuration with common ground
• Input protection (RI = 1.2 kΩ):IEC 61000-4-2 electrostatic discharge ESD, Class 3In contact, ± 6 kV; in air, ± 8 kVLevel B: temporary disruption; no change of opto-coupler stateIEC 61000-4-5 voltage surge, Class 3± 1000 V with 42 Ω serial resistor in differential modeLevel B: temporary disruptionIEC 61000-4-4 transient burst immunity± 4 kV peak voltage; 5 kHz repetitive rateLevel A: fully functional
• Opto-coupler drive:No coupler activation below 1.5 mA input current

简介

CLT3-4B属于电路保护的TVS-混合技术。由制造生产的CLT3-4BTVS - 混合技术混合技术 TVS（瞬态电压抑制器）产品族中的产品属于过压保护产品，其中结合了基于多种技术的保护机制，例如串联连接的 MOV（金属氧化物压敏电阻）和 GDT（气体放电管），旨在同时获得低漏电流和自恢复箝位工作特性。