Toshiba Unveils 2-Channel Automotive Digital Isolators for Enhanced Safety and Performance
Toshiba Electronic Devices & Storage Corporation (“Toshiba”) has announced the launch of its latest line of 2-channel high-speed digital isolators designed specifically for automotive applications. The new “DCM32xx00 Series” includes four advanced devices that deliver exceptional performance with a high common-mode transient immunity (CMTI) of 100kV/μs (typ.)[1] and a data transmission rate of up to 50Mbps (max)[2]. All products in this series comply with the AEC-Q100 standard, ensuring they meet the rigorous safety and reliability requirements for automotive electronic components. Shipments of these innovative isolators are now available.
Addressing Critical Needs in Automotive Systems
The growing adoption of hybrid-electric vehicles (HEV) and electric vehicles (EV) has increased the demand for robust and reliable isolation solutions in critical systems such as on-board chargers (OBC) and battery management systems (BMS). These systems require devices that ensure electrical isolation while preventing noise propagation, which can disrupt operations or compromise safety. Automotive-standard digital isolators play a pivotal role in enabling multi-channel, high-speed communication with high CMTI, making them indispensable for modern vehicles.
The DCM32xx00 Series leverages Toshiba’s proprietary magnetic coupling isolated transmission technology to achieve an impressive CMTI of 100kV/μs (typ.). This ensures superior resistance to electrical noise between input and output during isolated signal transmission, facilitating stable control signal transmission and contributing to the reliable operation of automotive equipment. Additionally, the series boasts a low pulse-width distortion of 0.8ns (typ.)[2] and a high-speed data transmission rate of 50Mbps (max)[2], making it ideal for 2-channel high-speed communication applications, including I/O interfaces with CAN[3] communications.
Expanding the Product Lineup
Toshiba has already established itself as a leader in the production of 4-channel automotive digital isolators. With the introduction of the DCM32xx00 Series, the company now extends its portfolio to include compact 2-channel devices housed in small SOIC8-N packages. This expansion underscores Toshiba’s commitment to meeting diverse customer needs across various automotive and industrial applications.
Looking ahead, Toshiba plans to further diversify its range of channels and package options to cater to the evolving demands of automotive and industrial equipment manufacturers. By continuing to provide high-quality isolation devices and photocouplers, Toshiba aims to support the real-time data transmission and reliability required by next-generation automotive systems.
Key Features and Benefits
The DCM32xx00 Series offers several standout features that make it a compelling choice for automotive applications:
- High Common-Mode Transient Immunity (CMTI): With a CMTI of 100kV/μs (typ.), these isolators provide excellent resistance to electrical noise, ensuring stable signal transmission even in challenging environments.
- High-Speed Data Transmission: Supporting data rates of up to 50Mbps (max), these devices enable fast and efficient communication, critical for real-time applications.
- Low Pulse Width Distortion: A pulse width distortion of just 0.8ns (typ.) ensures precise timing and minimal signal degradation, enhancing overall system performance.
- Flexible Channel Configurations: The series supports two channel configurations: one forward channel and one reverse channel, or two forward channels with no reverse channel, offering versatility for different application requirements.
Applications Across Automotive Systems
The DCM32xx00 Series is well-suited for a variety of automotive applications, including:
- Battery Management Systems (BMS): Ensuring accurate monitoring and control of battery cells to optimize performance and extend lifespan.
- On-Board Chargers (OBC): Facilitating efficient charging processes while maintaining isolation and minimizing noise interference.
- Inverter Control: Supporting reliable operation of power inverters in HEVs and EVs, which are essential for converting DC to AC power.
Main Specifications
(Unless otherwise specified, Topr = -40 to 125°C)
| Part Number | Number of Channels | Default Output | Input/Output Control | Package |
|---|---|---|---|---|
| DCM321C00 | 2 (1:1) | Low | None | SOIC8-N |
| DCM321D00 | 2 (2:0) | High | None | SOIC8-N |
| DCM320C00 | 2 (1:1) | Low | None | SOIC8-N |
| DCM320D00 | 2 (2:0) | High | None | SOIC8-N |
Absolute Maximum Ratings:
- Operation Temperature Range (Topr): -40 to 125°C
- Storage Temperature Range (Tstg): -65 to 150°C
- Isolation Voltage (BVS): 3000Vrms (min) at t = 1 minute, Ta = 25°C
Electrical Characteristics:
- Common-Mode Transient Immunity (CMTI): 100kV/μs (typ.)
- Data Rate: 50Mbps (max)
- Pulse Width Distortion (PWD): 0.8ns (typ.)
- Propagation Delay (tPHL, tPLH): 10.9ns
About Toshiba Electronic Devices & Storage Corporation
Toshiba Electronic Devices & Storage Corporation, a leading supplier of advanced semiconductor and storage solutions, draws on over half a century of experience and innovation to offer customers and business partners outstanding discrete semiconductors, system LSIs and HDD products.
Its 19,400 employees around the world share a determination to maximize product value, and to promote close collaboration with customers in the co-creation of value and new markets. The company looks forward to building and to contributing to a better future for people everywhere.
