Over 100kV/μs high Common Mode Transient Immunity (CMTI)

CPS (Cyber Physical Systems) are advancing in the manufacturing industry, therefore assured data communications are required even under noisy circumstances. Therefore, CMTI is an important factor as well as isolation voltage for standard digital isolators. Toshiba standard digital isolators utilize their own unique topology of magnetic coupling and shutout common-mode noise to provide a high CMTI. The higher this number, the better the noise immunity. The graph below shows Toshiba's noise immunity in comparison with four competitors.

Comparison data of CMTI (Note)

Comparison data of CMTI (Note)

VI : input voltage

VDD : power supply voltage

VCM : common mode voltage

Note : according to a survey by Toshiba (as of March 2022)

* : Common Mode Transient Immunity

Standard Digital Isolators

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Related information

Standard Digital Isolators

Isolated 4 channel logic supporting 150Mbps data rate
For use in industrial control applications like the isolation of bus lines between ICs using different power supply source in different potential, or the suppression of external noise via a data line, Toshiba standard digital isolators transmit at a data rate over 100Mbps higher than photocouplers can achieve.

Standard Digital Isolators

What is the isolation life of the standard digital isolator "DCL54x01"?
Isolation life of the standard digital isolator can be predicted by applying the same concept as MOSFET gate-oxide breakdown over time (TDDB: Time Dependent Dielectric Breakdown [Note 1]).

Standard Digital Isolators

Standard Digital Isolator with Robust Electromagnetic Compatibility (EMC)
At manufacturing sites where automation is progressing, FA equipment such as inverters/servos and PLCs are operating in the same equipment.

Standard Digital Isolators

What is the impulse voltage tolerance of the standard digital isolator "DCL54x01"?
For inverter systems used in industrial applications, indices related to insulation are defined in the International Standard IEC 61800-5-1 "Adjustable speed electrical power drive system – Safety requirements” [Note 1].

Standard Digital Isolators

Pulse Width Distortion (PWD) 3ns (max) corresponds to 150Mbps high-speed communication
Toshiba's standard 4 channel digital isolators improve PWD within 3ns, perform clear eye patterns and offer a maximum data rate corresponding to 150 Mbps what is enabled by high carrier frequency and on-off keying control.

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