electronica – 11mm SSO-8, 5A/3A gate drive optocouplers

Broadcom Limited has announced a new family of 5A and 3A gate drive optocoupler devices, the Avago ACNU-3430 and ACNU-3410, respectively.

The devices are the first 5A and 3A gate drive optocouplers offered in the 11mm SSO-8 package for high voltage, space constrained industrial applications including 600VAC motor drives and 1kVDC solar inverters. The new package platform features wide creepage and clearance, high insulation voltage and a compact package footprint, providing enhanced high voltage protection and signal isolation in tight spaces.

The ACNU-3430 and ACNU-3410 are 40% smaller in size and have higher peak output current and wider creepage and clearance when compared to previous optocouplers. The devices have higher common mode transient immunity (CMTI) exceeding 100 kV/μs to help prevent erroneous gate driver failures in harsh, electrically noisy environments.

In addition the new devices have one third (1/3) the propagation delay, enabling high frequency switching to improve efficiency in driving IGBT and SiC/GaN MOSFET.

Neil Tyler