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High-Speed Quad-Channel Digital Isolators Expand Industrial Signal Protection
Toshiba expanded its semiconductor portfolio with ten new quad-channel high-speed standard digital isolators designed for high-temperature industrial equipment.
www.global.toshiba
The widespread integration of wide-bandgap power semiconductor devices, such as silicon carbide and gallium nitride, has made it practical to design high-density industrial equipment. However, these fast-switching systems demand precise signal transmission capable of managing significant electrical noise and high operating temperatures.
Technical Characteristics and System Benefits
The newly introduced components belong to the DCL54xx01A series and are housed in standard SOIC16-W packages. They operate stably at a maximum operating temperature of 125 degrees Celsius, matching the harsh thermal profiles commonly found in proximity to power stages. Designed primarily for factory automation systems, the units target programmable logic controllers, input-output interfaces, motor control units, inverters, and switching power supplies.
To ensure transmission reliability under rapid voltage fluctuations, the components rely on a proprietary magnetic coupling isolation transmission technology. This mechanism enables the components to achieve a typical common mode transient immunity of 150 kilovolts per microsecond. As a result, the devices maintain precise transmission integrity by blocking high-voltage transients across isolated data lines.
Configuration and Communication Performance
The hardware family supports high-speed data communication with a maximum transmission rate of 150 megabits per second. Signal fidelity is further preserved through low pulse width distortion, which is rated at a typical value of 0.8 nanoseconds under five-volt operating conditions. The typical propagation delay is measured at 10.9 nanoseconds across a recommended supply voltage range of 2.25 to 5.5 volts.
System developers can select from multiple channel directions to optimize serial peripheral interfaces or multi-channel communication layouts. The ten part numbers offer three distinct configurations:
- Four forward channels and zero reverse channels.
- Three forward channels and one reverse channel.
- Two forward channels and two reverse channels.
The isolators provide a minimum isolation voltage rating of 5000 volts root mean square for one minute at an ambient temperature of 25 degrees Celsius. This deployment complements existing lower-speed options, such as the mid-speed DCL341x0B family which operates up to 25 megabits per second in smaller SSOP16 packages, allowing engineers to scale isolation components based on specific data throughput requirements.
Additional Context
This section details technical specifications and competitive benchmarking not included in the original product announcement.
The 150 kilovolts per microsecond common mode transient immunity of the DCL54xx01A series positions these components alongside high-tier industrial isolation devices. For comparison, conventional standard digital isolators from manufacturers like Texas Instruments and Analog Devices often specify a typical immunity ranging between 100 and 150 kilovolts per microsecond. While alternative capacitive or magnetic isolation technologies achieve similar maximum data rates of 150 megabits per second and identical 5000 volts root mean square isolation barriers, the incorporation of 125 degrees Celsius thermal limits and 0.8 nanosecond pulse width distortion allows these magnetic coupling units to fulfill standard criteria for high-frequency switching environments where timing margin and noise rejection are critical parameters.
Edited by Evgeny Churilov, Induportals Media - Adapted by AI.
www.global.toshiba
Additional Context
This section details technical specifications and competitive benchmarking not included in the original product announcement.
The 150 kilovolts per microsecond common mode transient immunity of the DCL54xx01A series positions these components alongside high-tier industrial isolation devices. For comparison, conventional standard digital isolators from manufacturers like Texas Instruments and Analog Devices often specify a typical immunity ranging between 100 and 150 kilovolts per microsecond. While alternative capacitive or magnetic isolation technologies achieve similar maximum data rates of 150 megabits per second and identical 5000 volts root mean square isolation barriers, the incorporation of 125 degrees Celsius thermal limits and 0.8 nanosecond pulse width distortion allows these magnetic coupling units to fulfill standard criteria for high-frequency switching environments where timing margin and noise rejection are critical parameters.
Edited by Evgeny Churilov, Induportals Media - Adapted by AI.
www.global.toshiba
