What is the impulse voltage tolerance of the standard digital isolator "DCL54x01"?

Impulse Voltage Test Waveform
Impulse Voltage Test Waveform

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]. General-purpose inverters for industrial use are mainly with a system-voltage range of 200V to 600V. Considering a 600V system, the impulse voltage required when the overvoltage category is III [Note 2] is 6kV, but 8kV above one class is required to design reinforced isolation.

For the DCL54x01 series, we have applied for reinforced isolation against VDE V 0884-11 standard's maximum working isolation voltage VIORM=1.0kVrms [Note 3]. The impulse voltage required for this standard's reinforced isolation is 12.8kV [Note 4], and the product design incorporates resistance that meets this requirement. Therefore, it has sufficient impulse voltage tolerance for a range of general-purpose uses in industrial applications.

[Note 1] Please purchase a standard document and check the specifications.

[Note 2] Please refer to the application note Safety Standards for Photocouplers (773.7KB).

[Note 3] VDE approval of DCL541L01 ,DCL541H01 ,DCL542L01 and DCL542H01 is under progress as of March 2023.

[Note 4] Maximum working isolation voltage VIORM=1.0kVrms. The impulse voltage corresponding to overvoltage category III is 8kV. VDE V 0884-11 requires a safety factor of 1.6 times the impulse voltage for reinforced isolation. Therefore, 1.6×8kV=12.8kV is required.

Standard Digital Isolators

Products list (parametric search)

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

Over 100kV/μs high Common Mode Transient Immunity (CMTI)
Toshiba standard digital isolators utilize their own unique topology of magnetic coupling and shutout common-mode noise to provide a high CMTI.

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

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.

Back to Standard Digital Isolators

Contacts

Technical inquiry

Contact us

Contact us

Frequently Asked Questions

FAQs

Queries about purchasing, sampling and IC reliability

Stock Check & Purchase

require 3 characters or more.

keyword:

Click this link to check inventory of TOSHIBA parts available at those distributors of Toshiba Electronics Europe GmbH ("TEE") who participate in netCOMPONENTS electronic components sourcing database. By clicking “click here to purchase” above, you will be opening a new browser window and leave our website to the each distributor's page. Please note that TEE provides this link solely as a convenience and for informational purposes only. By providing the link TEE does not guarantee availability of TOSHIBA part(s) as presented on the each distributor's page. TEE bears no responsibility for the accuracy or content of this external site. All information on this StockCheck page about TOSHIBA parts and their availability are provided by the netCOMPONENTS electronic components sourcing database.
A new window will open