Joulwatt has unveiled the JW1572LG, a new boost PFC controller that integrates a 700V GaN HEMT right into the chip. Designed for high-performance AC-DC adapters, power supplies, and TVs, it uses Constant On-Time (COT) control and BCM to deliver high power factor correction and efficiency. By cutting down on complex peripheral circuits, the JW1572LG offers a compact, system-level solution for developers targeting the next wave of slim, high-density power products.
The JW1572LG represents a major step forward by merging control logic and power stage in one package. Its BCM control removes the need for extra input voltage sensing, saving board space and simplifying the design process. The integrated 700V GaN HEMT delivers switching speeds and conduction efficiency that silicon simply cannot match, reducing heat loss while improving EMI performance. Safety is built-in, with a full suite of protections—including VCC under-voltage lockout, cycle-by-cycle current limiting, and over-temperature protection—guaranteeing stable, reliable operation even under heavy stress.
As the industry pivots toward smaller, greener power solutions, the JW1572LG is a perfect fit for the trend toward integrated GaN-based PFC. It allows manufacturers to slash BOM costs, speed up time-to-market, and hit those tough energy efficiency targets with ease. This launch underscores Joulwatt's commitment to high-integration power management, positioning them at the forefront of the movement toward smarter, more compact power electronics.
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