Gate drive optocoupler ups gate drive design scalability

Avago Technologies has introduced what it says is a 1A highly-integrated smart gate drive optocoupler device. The ACPL-339J features dual outputs optimised for driving both high-side and low-side gates of the MOSFET buffer stage, and touts an internal active timing control circuitry to prevent cross conduction and cut switching losses in the MOSFET buffer stage, added the firm.

Expanding upon previous generations of market-proven smart gate drive optocoupler devices, the ACPL-339J is geared to further maximise gate drive design scalability for motor control and power conversion applications ranging from low to high power ratings. Designed to support MOSFET buffer of various current ratings, the ACPL-339J makes it easier for system engineers to support different system power ratings using one hardware platform by interchanging the MOSFET buffers and power IGBT/MOSFET switches, Avago noted. More importantly, these changes can be made without redesigning the critical circuit isolation and short circuit protection.

The ACPL-339J is available in SO16 package with features including VCE desaturation detection, under voltage lockout (UVLO) detection, "soft" IGBT turn-off, and isolated open collector fault feedback. This package offers wide creepage and clearance of 8.3mm and is compliant to the industrial safety standards, IEC/EN/DIN EN 60747-5-5 with a maximum reinforced working insulation voltage of VIORM=1414VPEAK and UL1577 with a maximum insulation voltage of 5kVRMS.

The ACPL-339J is priced starting at $4.25 each in 10,000 piece quantities. Samples and production quantities are available.