Called VOIH72A, is has a digital buffering on the input and output.
“The component combines a maximum pulse distortion of only 6ns, a maximum supply current of 2mA and a supply voltage range of 2.7 to 5.5V, and is fast enough to support bus systems such as SPI, as well as to transmit high-resolution PWM signals or for controllers for uninterruptible power supplies,” according to distributor Rutronik, which is stocking the part.
As there is internal electronics either side of its isolation barrier, the IC needs separate 0V and +V power supply connections on each side.
Although this arrangement only requires six connections including the input and output, the device comes in an 8pin package: a surface-mount SOIC (5.3 x 6.1mm including legs) standing 3.3mm above the PCB.
The supply figures mentioned by Rutronik above are for the output side. The input side needs its own 2.7 to 5.5V rail, from which it typically draws 650μA when the input is in its low state, and 9mA (15mA max) when it is high.
Timing-wise, typical propagation delays are 29ns to a high output and 24ns to a low output (both 40ns max), then output rise time is 3.3ns and fall takes 3.1ns.
Common-mode transient immunity is a minimum of 20kV/μs, tested at 1kV.
Creepage and clearance are ≥4mm and the barrier is at least 0.2mm thick. UL1577 withstanding is 3,750Vrms for one minute, while to DIN EN 60747-5-5 maximum transient isolation is 6kVpeak and maximum repetitive peak isolation is 560Vpeak.
Operation is over -40 to +110°C.
Find the Rutronik VOIH72A web page here
Also rated at 25Mbit/s, TI introduced a non-opto alternative to opto-isolators in 2023
