DocID027187 Rev 1

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AN4625

Description

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Description

The STEVAL-IFP023V1 evaluation board (Figure 1) allows designers to evaluate the

CLT01-38S4 device behavior in industrial conditions. The board accommodates two

CLT01-38S4 chips connected to the SPI bus in a daisy chain configuration. It offers a 16-bit

digital input interface and indicates each sensor logic state with the LED.

Features:

•

8/16 input channel topology (CLT01-38S4 chip / STEVAL-IFP023V1 board)

•

Fully integrated current limiter

•

Termination for IEC 61131-2 type 1 and 3 inputs

•

SPI communication peripheral working at high frequency

•

Voltage regulator integrated on the chip

•

Thermal / voltage alarms and checksum

•

Wide range supply voltage operation

Benefits:

•

Low power dissipation compared to discrete solutions

•

Small external component count

•

Overvoltage protection

•

ESD in accordance with IEC 61000-4-2, class 4, 15 kV air discharge, 8 kV contact

discharge

•

Excellent EMC immunity

–

High energy surge (IEC 61000-4-5), 2 kV / criteria “B” without any external

protection

–

Fast transient burst (IEC 61000-4-4), +-3 kV criteria “A”

–

RF amplitude modulation (IEC 61000-4-6), 150 kHz - 80 MHz, 3 V / criteria “A”

•

Cost-effective isolation thanks to SPI bus

•

Overall dissipation reduced

•

Compact HTSSOP-38 package