CLT01-38S4

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CLT01-38SQ7

Product overview

Description

The CLT01 series is an octal industrial digital input IC, which drastically reduces the power dissipation of the digital input modules. Its current-sinking inputs can be configured for type 1, type 2, or type 3 inputs as per IEC 61131-2 with few external components.

The CLT01 series includes a serial interface, which translates, conditions, and serializes the data to CMOS-compatible signals through SPI. Combining its daisy-chaining capability with its accurate current limitation, the CLT01 series enhances the I/O module’s density by cutting the power dissipation and reducing the number of optocouplers.

The CLT01 series can be evaluated thanks to the STEVAL-IFP031V1 evaluation board. For detailed application guidelines, refer to the AN4625.

All features
Eight current-sinking digital inputs with serializer

Enables inputs to meet type 1, 2 and 3 characteristic of IEC 61131-2 standard

Adjustable and accurate input current limitation for low power and heat dissipation:

2.35 mA typ for Type 1 and Type 3

35 V reverse polarity capable

SPI-Compatible Serial Interface 8-bit

Optional 16-bit mode with parity check, and diagnostics (temperature alarm, voltage alarms)

Daisy-Chain SPI to reduce isolation channels
5 V voltage regulator

Energyless Field-Side LED drivers for visual status indication

Operating ambient temperature range from -40 °C to 105 °C

Packages

HTSSOP-38 – 500 µm pitch

QFN-48L – 500 µm pitch

Complies with the following standards:

IEC 61000-4-2 level 4: ±15 kV (air discharge)

IEC 61000-4-2 level 4: ±8 kV (contact discharge)

IEC 61000-4-5 Surge ±1 kV /42 Ω with minimum 1 kΩ pulse resistor at field inputs
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