New high-voltage optoisolator for industrial, transportation and medical applications

“As the only device of its kind compliant to such a comprehensive range of certifications, the OPI1268S will enable manufacturers to meet the high-voltage isolation specifications of a wide range of applications,” said Rodney Bailey, global applications engineering director for TT electronics Optoelectronics Business Unit.

The OPI1268S optoisolator is based on a high-efficiency LED with a peak wavelength of 850nm, optically coupled to a photodiode that detects incoming modulated light and converts it to a proportionate current. The device features a high-gain linear amplifier that is temperature-, current-, and voltage-compensated, resulting in a highly stable digital output with a data transfer rate of 2Mbits/s and a typical propagation delay (tPHL-tPLH) of less than 50ns.

Capable of isolating voltages up to 20kV, the OPI1268S also provides a voltage spike immunity of 30KV/microS dv/dt. As a result, the OPI1268S is unprecedented in protecting users, robotic interfaces and control circuits from high voltage.

Additional features include an input diode with a forward voltage of 1.8V (max) @IF = 20mA and a continuous forward current of 50mA. Reverse current is 100mircoA (max) @VR = 2.0V with reverse voltage of 3.0V. The output IC operates with 7V supply voltage with 40mW power dissipation. Operating temperature range is from -50°C to +100°C.

The OPI1268S is available now, supplied in a five-lead configuration measuring 27.94mm x 6.35mm x 8.89mm.

TT Electronics

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