Toshiba Electronics Europe has expanded its standard digital isolator portfolio with the DCL341x0B series, a pair of quad-channel devices aimed at industrial equipment and consumer electronics. The new isolators combine low power consumption, medium-speed data transfer, and electrical isolation for communication and control systems.
The DCL341L0B and DCL341H0B support data rates up to 25 Mbps and provide four isolation channels arranged as three forward channels and one reverse channel. The two devices differ in their default output state, with the DCL341L0B configured for low output logic and the DCL341H0B configured for high output logic.
Quad-Channel Isolation for Control and Interface Circuits
The DCL341x0B series is intended for applications requiring isolated signal transmission between different parts of a system. Typical examples include programmable logic controllers (PLCs), field devices such as sensors and actuators, and I/O interfaces using SPI communication.
Digital isolators are used to transfer signals across isolation barriers while preventing direct electrical connections between circuits. This approach is commonly used in industrial automation, motor control, and distributed control systems where different voltage domains must communicate safely.
The DCL341x0B is a quad-channel digital isolator used for isolated signal transmission in industrial and embedded communication systems.
Low Power Consumption with 25 Mbps Data Transfer
The new devices use Toshiba's proprietary edge transmission method and consume 0.18 mA per channel. The series supports communication speeds of up to 25 Mbps while maintaining a minimum common-mode transient immunity (CMTI) rating of 30 kV/μs.
High CMTI performance is important in systems exposed to fast voltage transitions, including power conversion equipment, industrial drives, and switching systems. The 25 Mbps maximum data rate positions the devices between low-speed isolation solutions and higher-speed digital isolators intended for data-intensive interfaces.
Wide Operating Range and Compact Package
The DCL341x0B series provides a withstanding isolation voltage of 3000 Vrms and operates across a temperature range of -40°C to +125°C. Supply voltages from 2.25 V to 5.5 V allow the devices to be used with a variety of logic families and processor platforms.
Both products are supplied in a compact SSOP16 package intended for space-constrained designs. The package format supports higher channel density while maintaining electrical isolation between circuits.
The launch expands Toshiba's existing digital isolation portfolio, which already includes the DCL54xx01A, DCL52xx00, DCM34xx01, and DCM32xx00 series for industrial and automotive applications.
Learn more and read the original announcement at www.toshiba.semicon-storage.com
Technology Overview
Digital isolators transfer digital signals across an isolation barrier using semiconductor technology rather than optical coupling. The DCL341x0B series provides four isolation channels, supports data rates up to 25 Mbps, delivers a minimum CMTI of 30 kV/μs, and operates from supply voltages between 2.25 V and 5.5 V with 3000 Vrms isolation.
Frequently Asked Questions
What applications are the DCL341x0B isolators intended for?
The devices target PLCs, sensors, actuators, industrial field equipment, and SPI-based I/O interfaces requiring isolated communication.
What is the channel configuration of the DCL341x0B series?
Both devices provide four channels arranged as three forward channels and one reverse channel.
What is the maximum data rate supported by the DCL341x0B?
The series supports data transmission speeds of up to 25 Mbps.
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