Toshiba Electronic Devices & Storage Corporation (“Toshiba”) has recently launched four dual-channel standard digital isolators for industrial equipment, the “DCL32xx00 Series.” The new products achieve low current consumption of 0.2mA per channel (typ.), support mid-speed communications, and feature an SOIC8-N package. Volume shipments start today.
The lineup includes “DCL320C00” and “DCL320D00,” configured with two forward channels, and “DCL321C00” and “DCL321D00,” configured with one forward channel and one reverse channel. Following on from the release of DCL34xx0B Series of quad-channel standard digital isolators, the addition of these new products brings Toshiba’s lineup of low-power-consumption standard digital isolators for industrial equipment to ten products, including six in the DCL34xx0B Series. This expands channel-count options and contributes to improved design flexibility.
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 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 (typ.) at 1Mbps, while supporting data transmission at speeds of up to 25Mbps (max). These characteristics contribute to stable equipment operation and lower power consumption.
The new products are rated for an isolation voltage of 3000Vrms (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.
The adoption of an industry-standard SOIC8-N package meets demand for more compact equipment designs.
DCL32xx00 Series products are suitable for I/O interface applications. The DCL320C00 and DCL320D00, configured with two channels, support unidirectional digital signal transmission, such as IC communications. DCL321C00 and DCL321D00, configured with one forward channel and one reverse channel, support bidirectional digital signal transmission, such as UART communications. This enables flexible product selection according to application requirements.
Toshiba offers “DCL54xx01A Series” and “DCL52xx00 Series” as standard digital isolators for industrial equipment supporting high‑speed data communications, and “DCM34xx01 Series” and “DCM32xx00 Series” as standard digital isolators for automotive applications, allowing customers to select products that meet application requirements.
Toshiba will contribute to the realization of carbon neutrality by continuing to expand its lineup of digital isolators for industrial and automotive equipment, broadening the channel count and package options, and pursuing performance improvements. Along with photocouplers that provide optical isolation, Toshiba will provide a lineup of high‑quality isolation devices that support stable operation in communications and control systems requiring electrical isolation.
Applications
- Industrial automation (programmable logic controllers (PLCs), I/O interfaces, etc.)
- Field devices (sensors, actuators, etc.)
- Motor control
- Inverters
- Switching power supply
Features
- Low operating current consumption: 0.2mA (typ.) per channel[1]
- Supports mid-speed data transmission: tbps=25Mbps (max)
- Wide operating temperature range: Topr=-40 to 125°C
- Dual-channel configuration:
Two forward channels and zero reverse channels (DCL320C00, DCL320D00)
One forward channel and one reverse channel (DCL321C00, DCL321D00) - SOIC8-N package
| Main Specifications | ||||||||
| Part number | DCL320C00 | DCL320D00 | DCL321C00 | DCL321D00 | ||||
| Number of channels(Forward directions: reverse directions) | 2 (2:0) | 2 (2:0) | 2 (1:1) | 2 (1:1) | ||||
| Default output logic[6] | Low | High | Low | High | ||||
| Package | Name | SOIC8-N(P-SOP8-0405-1.27-002) | ||||||
| Size (mm) | Typ. | 4.9×6.0×1.75 | ||||||
| Absolute maximum ratings | Operating temperature Topr (°C) | -40 to 125 | ||||||
| Storage temperature TSTG (°C) | -65 to 150 | |||||||
| Isolation voltage (60s)BVS (Vrms) | Ta=25°C | Min | 3000 | |||||
| Recommended operating conditions | Power supply voltage VDD1 (V) | Topr=-40 to 125°C | 2.25 to 5.5 | |||||
| Power supply voltage VDD2 (V) | 2.25 to 5.5 | |||||||
| Electrical characteristics | 1Mbpsoperatingcurrent | Primary-side supplycurrent IDD1(1) (μA) | VDD1=VDD2=3.3V, fCLK=500kHz, duty=50% cycle square wave, CL=15pF, Ta=25°C | Typ. | 160 | 160 | 215 | 215 |
| Secondary-side supplycurrent IDD2(1) (μA) | 260 | 260 | 215 | 215 | ||||
| 25Mbpsoperatingcurrent | Primary-side supplycurrent IDD1(25) (mA) | VDD1=VDD2=3.3V, fCLK=12.5MHz, duty=50% cycle square wave, CL=15pF, Ta=25°C | Typ. | 3.4 | 3.4 | 3.2 | 3.2 | |
| Secondary-side supplycurrent IDD2(25) (mA) | 2.8 | 2.8 | 3.2 | 3.2 | ||||
| Data ratetbps (Mbps) | VDD1=VDD2=2.25 to 5.5V,Ta=-40 to 125°C | Max | 25 | 25 | 25 | 25 | ||
| Propagation delaytPHL, tPLH (ns) | VDD1=VDD2=3.3V,50kHz, Duty=50%, tr=tf=2ns, CL=15pF, Ta=-40 to 125°C | Max | 52 | 52 | 52 | 52 | ||
| Common mode transientImmunity|CMTI| (kV/μs) | VDD1=VDD2=3.3V,VI=VDDI[7] or 0V,VCM=400V, Ta=25°C | Min | 30 | 30 | 30 | 30 | ||
| Sample check & availability | Buy Online | Buy Online | Buy Online | Buy Online | ||||
Follow the links below for more on the new products.
DCL320C00
DCL320D00
DCL321C00
DCL321D00
Follow the link below for more on Toshiba’s Isolators/Solid State Relays.
Isolators/Solid State Relays
To check availability of the new products at online distributors, visit:
DCL320C00
Buy Online
DCL320D00
Buy Online
DCL321C00
Buy Online
DCL321D00
Buy Online
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* Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.
