High-Speed Digital Input Current Limiters

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            High-Speed Digital Input Current Limiters
                    STMicroelectronics offers its CLT01-38SQ7 and SCLT3-8BQ7 current limiters in a QFN 7x7 - 48L package
    

Image of STMicroelectronics' High-Speed Digital Input Current Limiters STMicroelectronics' CLT01-38SQ7 and SCLT3-8BQ7 provide an 8-line protected digital input termination with serialized state transfer. These devices enhance the I/O module density by cutting the dissipation (78 mW per input) and reducing the count of opto-transistors. The 6.25 MHz (CLT01-38SQ7) and 2 MHz (SCLT3-8BQ7) SPI peripheral outputs serialize the input state transfer to the I/O module controller. The SCLT3-8BQ7 has an adjustable digital filter and an LED driver embedded in each type 3 input section.

Features
8 inputs; 8-bit SPI output High side input with common ground 5 V voltage regulator Package: QFN 7x7 - 48L 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 Input digital filter with adjustable delay (SCLT3-8BQ7): 20 μs to 3 ms