Built on CMOS technology, the optocoupler consists of an AIGaAs LED optically coupled to an integrated circuit with a rail to rail output stage, which provides the drive voltages required by gate-controlled devices.
The voltage and current supplied by the VOD3120A make it ideal for directly driving IGBTs with ratings up to 1200V / 100A.
With high isolation voltage ratings of VIORM = 891V and VIOTM = 6000V, the device provides galvanic isolation for motor drives, solar inverters, switch-mode power supplies (SMPS), induction stovetops, and uninterruptable power supplies (UPS).
In addition, its undervoltage lock-out (UVLO) feature protects IGBTs / MOSFETs from malfunction, while its common mode transient immunity of 35kV/μs minimum helps to reduce noise issues from high to low voltage areas on the PCB.
The optocoupler offers a maximum propagation delay time of 0.5µs for applications requiring fast switching. The RoHS-compliant device operates over a wide power supply range of 15V to 30V and an industrial temperature range from -40°C to +105°C.