Deep Dive into 1700 V GaN – White Papers Available

The world’s only 1700 V gallium nitride (GaN) switcher IC — available as a member of the InnoMux-2 family — substantially expands the range of applications for GaN technology. Two newly published white papers provide valuable insights into how 1700 V GaN devices maximize efficiency and power density in multi-output flyback power supplies: 1700 V GaN Switch with Adaptive Zero-Voltage Switching for Multi-Output Flyback Converters Optimizing Efficiency and Output Regulation for Dual-Output Flyback with a 1700 V GaN Switch

The 1700 V rating achieved by Power Integrations’ PowiGaN technology allows GaN devices to replace costly silicon carbide (SiC) transistors in demanding industrial applications, including three phase meters and auxiliary power supplies for automotive chargers and solar inverters. The 1700 V InnoMux-2 IC combines the benefits of four pioneering innovations by Power Integrations: 1700 V PowiGaN Switch – Industry leading voltage blocking capacity for gallium nitride InnoMux-2 Multi-Output Capability – Independently regulated, accurate outputs without downstream regulators Single-Chip Zero-Voltage Switching – Minimizing switching losses without an active clamp FluxLink Secondary-Side Regulation – Communication across the isolation barrier without optocouplers

InnoMux-2 devices empower system engineers to rethink power architecture and reclaim the DC-DC stage into the main power supply system. They deliver better than 90% efficiency from a 1000 VDC bus, supplying up to 70 W from three accurately regulated outputs.