Toshiba Releases Digital Isolators that Contribute to Stable High-Speed Isolated Data Transmissions in Industrial Applications

- High common mode transient immunity (CMTI) and high-speed data rate -

May 9, 2023

Toshiba Electronic Devices & Storage Corporation

KAWASAKI, Japan—Toshiba Electronic Devices & Storage Corporation ("Toshiba") has launched high-speed quad-channel digital isolators, the “DCL54xx01 Series,” that feature 100kV/μs (min) of high common mode transient immunity (CMTI) and a 150Mbps high-speed data rate. Volume shipments of the six products in the series start today.

Ensuring the safety and reliability of factory automation equipment requires isolation devices that ensure insulation and prevent noise propagation. Toshiba is now offering digital isolators as a solution that address requirements for higher speed and multi-channel signal communications and high CMTI.

The new products use Toshiba’s proprietary magnetic coupling type insulated transmission method to deliver a high CMTI of 100kV/μs (min) [1]. This realizes high tolerance of electrical noise between input/output in isolated signal communications, and also contributes to stable control signal transmission and equipment operation. With their low pulse width distortion of 0.8ns (typ.) [2] and high-speed data rate of 150Mbps (max), the digital isolators are suitable for multi-channel high-speed communications applications such as I/O interfaces with SPI communications.

Toshiba has provided its customers with photocouplers, isolation devices that ensure insulation through optical coupling, for 50 years now. Going forward, in addition to photocouplers, the company will expand its lineup of high-speed quad-channel digital isolators, plus the number of channels and packages, and offer high-quality insulation devices that support the reliable, real-time data transmission required for industrial equipment control.

Toshiba Releases Digital Isolators that Contribute to Stable High-Speed Isolated Data Transmissions in Industrial Applications

Applications

  • Industrial automation systems (I/O interfaces, programmable logic controllers, etc.)
  • Motor control
  • Inverters

Features

  • High common mode transient immunity: CMTI=100kV/μs (min)
  • high-speed data rate: tbps=150Mbps (max)
  • Low pulse width distortion: PWD=0.8ns (typ.) (VDD1=VDD2=5V)
  • Quad-channel:
    Four channel of forward directions and zero channel of reverse direction
    Three channel of forward directions and one channel of reverse direction

Notes:
[1] Test condition: VI= VDD or 0V, VCM=1500V, Ta=25°C
[2] Test condition: VDD1=VDD2=5V, Ta=25°C 

Main Specifications

Part number DCL540C01 DCL540D01 DCL540L01 DCL540H01 DCL541A01 DCL541B01
Number of channels
(Forward directions : reverse directions)
4
(4:0)
4
(4:0)
4
(4:0)
4
(4:0)
4
(3:1)
4
(3:1)
Default output logic Low High Low High Low High
Enabled control None None

Output

enable

Output

enable

Input 

Disable

Input 

Disable

Package SOIC16-W

Absolute

maximum

ratings

Operating temperature
Topr (°C)
-40 to 110
Storage temperature
Tstg (°C)
-65 to 150

Maximum withstanding isolation voltage (1min.)

BVS min (Vrms)

Ta=25°C 5000
Recommended operating conditions

Power supply voltage

VDD1, VDD2 (V)

2.25 to 5.5
Electrical characteristics

Common mode

transient immunity

CMTI min (kV/μs)

100

Data rate

tbps max (Mbps)

150

Pulse width distortion

PWD typ. (ns)

VDD1=VDD2

=5 V,

Ta=25°C

0.8

Propagation delay

tPHL, tPLH typ. (ns)

10.9
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Part number DCL541L/H01[3] DCL542L/H01[3] DCL520C/D00[3] DCL521C/D00[3]

Number of channels

(Forward directions : reverse directions)

4
(3:1)
4
(2:2)
2
(2:0)
2
(1:1)
Default output logic Low/High Low/High Low/High Low/High
Enabled control

Output

enable

Output

enable

None None
Package SOIC16-W SOIC8
Absolute maximum ratings Operating temperature Topr (°C) -40 to 110 -40 to 125
Storage temperature Tstg (°C) -65 to 150 -65 to 150

Maximum withstanding isolation voltage (1min.)

BVS min (Vrms)

Ta=25°C 5000 3000
Recommended operating conditions

Power supply voltage

VDD1, VDD2 (V)

2.25 to 5.5 2.25 to 5.5
Electrical characteristics

Common mode 

transient immunity 

CMTI min (kV/μs)

100 100

Data rate

tbps max (Mbps)

150 150

Pulse width distortion

PWD typ. (ns)

VDD1=VDD2

=5 V,

Ta=25°C

0.8 0.8

Propagation delay

tPHL, tPLH typ. (ns)

10.9 10.9

Note:
[3] Under development (As of May, 2023)

Follow the links below for more on the new product.
DCL540C01
DCL540D01
DCL540L01
DCL540H01
DCL541A01
DCL541B01

Follow the link below for more on Toshiba’s digital isolators.

Standard Digital Isolators

Application
Inverter/Servo
Uninterruptible Power Supply
Programmable Logic Controller

Application Note
Standard Digital Isolators

To check availability of the new products at online distributors, visit:

DCL540C01
Buy Online

DCL540D01
Buy Online

DCL540L01
Buy Online

DCL540H01
Buy Online

DCL541A01
Buy Online

DCL541B01
Buy Online

Customer Inquiries:

  Optoelectronic Device Sales & Marketing Dept.

  Tel: +81-44-548-2218

Information in this press release, including product pricing and specifications, content of services and contact information, is current and believed to be accurate on the date of the announcement, but is subject to change without prior notice. Technical and application information contained here is subject to the most recent applicable Toshiba product specifications.

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