Toshiba Unveils AEC-Q100-Approved Auto Digital Isolators

- Realize Stable Operation with High Common-mode Transient Immunity and High-Speed Data Communication -

KAWASAKI, Japan--BUSINESS WIRE--

Toshiba Electronic Devices & Storage Corporation ("Toshiba") has launched a line of 2-channel high-speed standard digital isolators for automotive applications. The new "DCM32xx00 Series" features four devices that support stable operation with high common-mode transient immunity (CMTI) of 100kV/μs (typ.)^[1] and high data transmission rate of 50Mbps (max)^[2]. All conform to the AEC-Q100 standard for the safety and reliability of automotive electronic components. Shipments start today.

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Toshiba: DCM32xx00 Series, automotive standard digital isolators compliant with AEC-Q100.

The safety and reliability of on-board chargers (OBC) and battery management systems (BMS) in hybrid-electric vehicles (HEV) and electric vehicles (EV) require devices that ensure isolation and prevent noise-propagation. Automotive standard digital isolators provide solutions for the multi-channel high-speed communications and high CMTI these isolation devices require.

The new isolators use Toshiba's proprietary magnetic coupling type isolated transmission method to achieve a high CMTI of 100kV/μs (typ.). This delivers high level resistance to electric noise between input and output in isolated signal transmission, enables stable control signal transmission and contributes to stable equipment operation. A low-pulse-width distortion of 0.8ns (typ.)^[2] and a data-transmission rate of 50Mbps (max)^[2] are also achieved. The new products are suitable for 2-channel high-speed communication applications such as I/O interfaces with CAN^[3] communications.

Toshiba already mass produces 4-channel automotive standard digital isolators, and has now extended its product lineup to 2-channel small SOIC8-N packages. Going forward, the company will expand its range of channels and packages for automotive and industrial equipment. It will continue to provide high-quality isolation devices and photocouplers that support the reliability and real-time data transmission required by automotive equipment.

[1] Test conditions: VDD1=VDD2=4.5 to 5.5V, VCM=1500V, T_opr=-40 to 125°C [2] Test conditions: VDD1=VDD2=4.5 to 5.5V, T_opr=-40 to 125°C [3] CAN (Controller Area Network): A serial communications standard, primarily used for automotive communication networks.

Applications Automotive equipment

• Battery management system (BMS)
• Automotive on-board charger (OBC)
• Inverter control

Features

• High common mode transient immunity: CMTI=100kV/μs (typ.)^[1]
• High-speed data rate: t_bps=50Mbps (max)^[2]
• Low pulse width distortion: PWD=0.8ns (typ.)^[2]
• 2-channel support (see Main Specifications for details on each device): One forward channel and one reverse channel; Two forward channels and no reverse channel

Related information

Application Notes

• Basics of the standard digital isolators
• Digital Isolator EMC Application Notes
• Glossary of Standard Digital Isolator terms