강남일보

Toshiba Electronic Devices & Storage Corporation (https://toshiba.semicon-storage.com/ap-en/top.html) (“Toshiba”) has expanded its DCL34xx0B series of quad-channel standard digital isolators for industrial equipment with four new products. All products in the series deliver low current consumption of 0.2mA per channel (typ.)[1], are housed in a small SSOP16 package, and support mid-speed communications[2].

The new products are “DCL340L0B (https://toshiba.semicon-storage.com/kr/semiconductor/product/isolators-solid-state-relays/standard-digital-isolators/detail.DCL340L0B.html)” and “DCL340H0B (https://toshiba.semicon-storage.com/kr/semiconductor/product/isolators-solid-state-relays/standard-digital-isolators/detail.DCL340H0B.html),” configured with four forward channels and zero reverse channels, and “DCL342L0B (https://toshiba.semicon-storage.com/kr/semiconductor/product/isolators-solid-state-relays/standard-digital-isolators/detail.DCL342L0B.html)” and “DCL342H0B (https://toshiba.semicon-storage.com/kr/semiconductor/product/isolators-solid-state-relays/standard-digital-isolators/detail.DCL342H0B.html),” configured with two forward channels and two reverse channels.

In industrial equipment, such as programmable logic controllers (PLCs), actuators, and inverters, it is crucial to prevent equipment failures, the propagation of abnormalities, and malfunctions caused by noise, which increases with higher-speed device operation. All these issues are addressed by electrical isolation that transmits signals between circuits operating at different potentials, such as high and low voltage, which is driving demand for safe, highly reliable isolation devices that maintain stable operation in noisy environments. Alongside superior reliability, and as equipment continues to become more compact, isolation devices are also, more than ever, required to offer smaller sizes, plus a longer service life.

In addition, reducing overall system power consumption is at the heart of achieving carbon neutrality, and low-power operation has become an increasingly important requirement in electronics, including isolation devices.

All four new products use Toshiba’s proprietary magnetic coupling isolation transmission technology[3] to meet market requirements for high reliability and long service life. They also incorporate a new Toshiba circuit technology in the isolation signal transmission section that allows them to achieve low power consumption of 0.2mA per channel while maintaining stable data transmission at speeds of up to 25Mbps (max).

The new products are rated for an isolation voltage of 3,000Vrms (min) and operate over a wide temperature range of -40 to 125°C, and a wide supply voltage range of 2.25 to 5.5V. These characteristics contribute to stable equipment operation and low power consumption.

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