ActivePSR™ and ActiveQR™ AC/DC Adapters


Active-Semi offers several energy efficient solutions for line power adapters

Active-Semi's ActivePSR™ flyback platform delivers best-in-class primary side regulated power with the lowest bill of materials for applications delivering 12.5 W and less, and an NPN architecture that yields a system cost 10% less than MOSFET architectures. The patented ultra-fast-start-up and cable-compensation circuits deliver fast switching from standby to full-load with the lowest component and cable costs. ActivePSR™ delivers on protection and load regulation, with CC/CV over-current protection at 10% CC accuracy and 5% CV accuracy. The ActivePSR™ family of primary-side regulator ICs including the ACT41x products enable Level 6 DOE standard for under 60 W power supplies.

Active-Semi's secondary-side regulated ActiveQR™ platform features optimized CCM and DCM advanced quasi-resonant operation, with jitter-frequency modulation to reduce EMI, delivering up to 60 W. This innovative platform offers the richest fault protection available in a small 6-pin SOT23-6 package, offering brown-out, over-temperature, short-circuit, short-winding, open loop protection, and among others.

ActivePSR™ and ActiveQR™ AC/DC Adapters

Manufacturer Part Number Description Available Quantity Datasheets
ACT512US-T IC REG CTRLR PWM CM SOT23-6 995
ACT413US-T IC OFF-LINE CTRLR PWM 6-SOT23 3000

Eval Kits

Manufacturer Part Number Description Available Quantity Datasheets
EA413US EVAL KIT FOR ACT413US-T 0
EA512US EVAL KIT FOR ACT512US-T 0