ACPL-334J & ACPL-338J, 3A gate drive optocouplers with integrated DESAT detection and fault feedback

The ACPL-736J is an ±50mV optically isolated sigma-delta modulator that accepts external clocks up to 21MHz.

It operates from a 5V power supply and achieves an SNR of 81 dB. The small input range of ±50 mV enables higher current measurements with lower shunt heat dissipation. It is ideal for direct connection to shunt resistors or other low-level signal sources in applications such as motor phase current measurement.

The ACPL-736J's isolated digital output interfaces operate from a 3V to 5.5V power supply. The ACPL-736J receives clock signal from an external source and streams out Σ-Δ bitstream in accordance with the input voltage sensing level through the CMOS output interface.

Offered in a SO-16 package, the optically isolated ACPL-736J delivers reliable and superior over-temperature performance motor drive designers need to measure current accurately compared to traditional current transducers.

The ACFJ-3405 is a 12A gate drive optocoupler with two selectable modes of output drive to optimize the slew rate of IGBT switching. It also features IGBT DESAT, IGBT gate, and system power supply faults monitoring, shutdown, and feedback to help meet motor drive functional safety standards.

The ACFJ-3405 is packaged in a compact, surface-mountable 400V CTI SO-16 package. This full-featured and easy-to-implement smart gate driver is certified to provide reinforced galvanic isolation with 1,414Vpk working voltage meeting safety regulatory IEC/EN/DIN, UL, and CSA.