SCLT3-8BT8-TR

Current Regulation/Management Overview

The SCLT3-8BT8-TR is an octal industrial digital input IC from STMicroelectronics designed to reduce power dissipation in digital input modules. It features current-sinking inputs configurable for IEC 61131-2 Type 1, 2, or 3 standards. The device includes a serial interface that translates and conditions data to CMOS-compatible SPI signals. It supports daisy-chaining to minimize isolation channels and incorporates adjustable current limitation with integrated glitch and debounce filters for EMC robustness.

Current Regulation/Management Feature Summary

• Configurable current-sinking inputs supporting IEC 61131-2 Type 1, 2, and 3 characteristics
• Serial interface enabling daisy-chain connectivity to reduce isolation channel requirements
• Integrated glitch and debounce filters with selectable delay times for enhanced EMC robustness
• Adjustable and accurate input current limitation to minimize power dissipation and heat generation

Current Regulation/Management Applications

• Industrial digital input modules requiring low power dissipation
• PLC I/O systems needing IEC 61131-2 compliant input types
• High-density I/O designs utilizing daisy-chain SPI architectures
• Applications demanding high EMC immunity with integrated filtering

Current Regulation/Management Procurement Notes

Verify the specific suffix TR indicates tape and reel packaging configuration when sourcing. Confirm the operating temperature range and package variant (HTSSOP-38 or QFN-48L) matches the target design constraints. Ensure compatibility with the STEVAL-IFP030V1 evaluation board for initial validation. Cross-reference the latest datasheet version for any updates to electrical characteristics or mechanical dimensions prior to final procurement.

Current Regulation/Management Selection Notes

Select this component for applications requiring significant reduction in power dissipation within digital input stages. It is suitable for designs needing flexible input type configuration without extensive external components. Consider its daisy-chain capability for systems aiming to minimize isolation barriers. Evaluate the integrated diagnostic features if temperature or voltage alarms are required for system monitoring.

Current Regulation/Management Part Context

This part belongs to the SCLT3 series of octal industrial digital input ICs. The series is engineered to enhance I/O module density by cutting power dissipation and reducing the number of optocouplers needed. It complements ST's portfolio of interface solutions for industrial automation and control systems.

Current Regulation/Management Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify functional equivalence with other ST digital input ICs if alternatives are considered.