CMOS Isolated Gate Drivers Enhance Power Delivery Systems

Green standards are challenging power designers to deliver more energy-efficient, cost-effective, smaller, and more reliable power delivery systems. A critical building block within ac-dc and isolated dc-dc power supplies is the isolated gate driver. These trends push the need for greater power efficiency and increased isolation-device integration.

Optocoupler-based solutions and gate-drive transformers have been the mainstay for switch-mode power supply (SMPS) systems for many years, but fully integrated isolated gate driver products based on RF technology and mainstream CMOS provide more reliable, smaller, and power-efficient solutions.

CMOS-based isolated gate drive technology, exemplified in this white paper by Silicon Labs’ ISOdriver family, offers performance, reliability, integration, and per-channel cost advantages over legacy isolation technologies such as optocouplers and gate drive transformers.


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