CLT01-38SQ7

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High speed digital input current limiter

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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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The current status of a product:
Active: Product is in volume production
Evaluation: Product is under characterization. Limited Engineering samples available
Preview: Product is in design stage
Target: Product is in design feasibility stage.No commitment taken to produce
Proposal: Marketing proposal for customer feedback.No commitment taken to design or produce
NRND: Not Recommended for New Design.Product is in volume production only to support customers ongoing production.
Marketing description of the package type.Compliancy of the device with industry requirement domains (IRD)The RoHS status of a product:
ECOPACK 1: Initial grade to identify European RoHS compliant products.
ECOPACK 2: New grade to identify brominated chlorinated and antimony oxide flame retardant free products.
ECOPACK 3: Halogen free RoHS exemptions free products.
(*): ECOPACK 2 version available upon request.
(**): Some versions still existing in ECOPACK 1 or not compliant.
The current status of a product:
Active: Product is in volume production
Evaluation: Product is under characterization. Limited Engineering samples available
Preview: Product is in design stage
Target: Product is in design feasibility stage.No commitment taken to produce
Proposal: Marketing proposal for customer feedback.No commitment taken to design or produce
NRND: Not Recommended for New Design.Product is in volume production only to support customers ongoing production.
Budgetary PriceMarketing description of the package type.Storage method used to contain product.Main country of assembly or fabrication of the product.ECCNs are five character alpha-numeric designations used on the Commerce Control List to identify dual-use items for export control purposes. The value as specified by level (minTypMax) of the ambient temperature (in Cel) in which this item was designed to operate.The value as specified by level (minTypMax) of the ambient temperature (in Cel) in which this item was designed to operate.