STMicroelectronics Isolated and Non-Isolated Digital Inputs on Evaluation Board Based on CLT03-2Q3 Self-Powered Current

The STEVAL-IFP035V1 evaluation board is designed to help you evaluate circuit protection strategies for factory automation using digital-input current limiters between industrial sensor devices and processing units such as programmable logic controllers (PLC). The board embeds two independent CLT03-2Q3 self-powered digital input current limiters, each with two isolated channels able to drive isolated opto-coupler or non-isolated LVTTL digital input terminations. These devices also feature reduced power dissipation and improved EMI robustness for safer and more reliable operation, and to allow designers to build solutions with greater I/O module density. The board also observes other standard industry requirements such as reverse polarity operation and one-minute overvoltage tolerance, and jumpers are included to generate test pulses along any of the lines to verify normal operation.