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High-speed digital input current limiter evaluation board based on CLT01-8SQ7

STEVAL-IFP031V1

Overview

This evaluation board implements an 8-line protected digital input termination with serialized state transfer for Programmable Logic Controllers. It is based on the CLT01-38SQ7 device, which enhances I/O module density by reducing dissipation (78 mW per input) and the number of opto-transistors. A LED driver is embedded in each input section.

Its 6.25 MHz SPI peripheral output serializes the input state transfer to the I/O module controller.
The STEVAL-IFP031V1 evaluation board can be connected in daisy chain with other STEVAL-IFP031V1 evaluation boards.
The adapter board can be placed between the first STEVAL-IFP031V1 evaluation board in the chain and the STEVAL-PCC009V2 STM32x microcontroller evaluation board. This adapter offers two buses: isolated and non-isolated.

Main features

8 inputs - 8-bit SPI output
High side input with common ground
5 V voltage regulator
Package: QFN 7 x 7 - 48 L
30 V reverse polarity capable
Adjustable current limiters

LED output for visual status
Optional 16-bit mode with parity check, temperature and voltage alarms
Daisy chain capable
Power dissipation 78 mW per channel
RoHS compliant

Design Files

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Update:2025-05-08 17:47:14

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