CLT3-4B Datasheet (STMicroelectronics) - Current limited over-voltage protected quad digital termination

CLT3-4B, Current limited over-voltage protected quad digital termination

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.

Figure 1.

Pin configuration OUT1 OUT2 COM COM34 COM COM CO

CLT3-4B 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