描述 Description

The SCLT3 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 SCLT3 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 SCLT3 series enhances the I/O module’s density by cutting the power dissipation and reducing the number of optocouplers.

The SCLT3 series can be evaluated thanks to the STEVAL-IFP030V1 evaluation board. For detailed application guidelines refer to AN2846.

特性 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
? Integrated glitch and debounce filter with selectable delay time: 20 μs to 3 ms for EMC robustness
? 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

簡(jiǎn)介

SCLT3-8BT8屬于集成電路（IC）的信號(hào)端接器。由制造生產(chǎn)的SCLT3-8BT8信號(hào)端接器信號(hào)端接器用于向信號(hào)路徑提供電氣端點(diǎn)，以防止信號(hào)反射回電路而引起干擾。類型有電纜、DDCA、SCSI、HVD、SE、LVD、串行和 USB，端接數(shù)量為 1、2、6、8、9、14、15、18 或 27。