STMicroelectronics CLT3-4B
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. This common pad COM is enlarged to reduce the thermal resistance and improve the device cooling.| Part No. | CLT3-4B |
|---|---|
| Datasheet | CLT3-4B Download |
| Manufacturer |  STMicroelectronics |
| Description | Current limited over-voltage protected quad digital termination |
| Buy | Stock & Price |
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 operatio...
