For driving power transistors, induction heating, and industrial-inverter apps, the PS9505 and PS9305 series isolated gate drive optocouplers report high common mode transient immunity, high output currents, and fast switching times. The devices place a GaAlAs LED on the input side and a receiver integrating a photo diode, signal processing circuit, and a power transistor on the output side. Specs include peak output currents of 2.5A maximum and 2A minimum, a switching speed of 0.25 ms, under-voltage lock out protection with hysteresis, and a common mode transient immunity of ±25 kV/μs minimum. CALIFORNIA EASTERN LABORATORIES, Santa Clara, CA. (408) 988-3500.