Members of the new four-channel isolator series will block such destructive transients across data lines, exhibiting common-mode transient immunity (CMTI) of 100kV/μs (min.)[1] while supporting data transmission rates of up to 150Mbps.
To accommodate a wide variety of use cases, these devices also offer various combinations of channel addresses, output logic, and enable controls. Four of them have four forward channels, and the other two have three forward channels and one reverse channel. Of the four forward-channel devices, two do not offer enable control, and the other two have output enable. The two devices with three forward channels and one reverse channel have an input disable function. For three of the devices, the default output logic is low, and for the other three, it is high.
The new digital isolators are based on Toshiba's proprietary magnetic coupling isolated transmission method and will complement the company's devices that utilize LED-based optical isolation technology. Members of the DCL54xx01 series feature a typical pulse width distortion of only 0.8 ns[2] and a nominal signal delay of 10.9 ns. All six isolators can withstand a maximum isolation voltage of 5,000 V for 1 minute. Acceptable power inputs for VDD1 and VDD2 range from 2.25 V to 5.5 V. The devices are supplied in SOIC16-W packages and can operate in a temperature range of -40°C to 110°C.
The new digital isolators are designed to protect industrial automation systems, such as programmable logic controllers (PLCs) and I/O interfaces. Other uses include motor control applications and inverters.
Notes:
[1] Test condition: VI = VDD or 0V, VCM = 1500V, Ta = 25°C
[2] Test condition: VDD1 = VDD2 = 5V, Ta = 25°C
Learn more about Toshiba's DCL54xx01 series of digital isolators in the following data sheets:
