The ACT512EUS-T is a highly integrated primary-side regulated (PSR) AC-DC converter from Active-Semi International Inc., designed for offline power supply applications. This device eliminates the need for optocouplers, simplifying design and reducing the BOM cost. It offers excellent efficiency, low standby power consumption, and comprehensive protection features, making it suitable for a wide range of applications, including adapters, chargers, and auxiliary power supplies.

Applications:

• Adapters: Powering electronic devices such as laptops, tablets, and smartphones.
• Chargers: Charging batteries in portable devices and power tools.
• Auxiliary Power Supplies: Providing standby power for home appliances and industrial equipment.
• Smart Home Devices: Powering smart lighting, thermostats, and security systems.
• IoT Devices: Supplying power to sensors, gateways, and other IoT devices.

Features:

• Primary-Side Regulation (PSR): Eliminates the need for optocouplers, reducing BOM cost and complexity.
• High Efficiency: Minimizes power losses and reduces heat generation.
• Low Standby Power Consumption: Meets stringent energy efficiency standards.
• Comprehensive Protection Features: Includes overvoltage protection (OVP), overcurrent protection (OCP), and over-temperature protection (OTP).
• Adaptive Voltage and Current Control: Optimizes efficiency and performance over a wide load range.

Benefits:

• Reduced BOM Cost: Eliminating optocouplers reduces the number of external components required.
• Simplified Design: PSR architecture simplifies the design process and reduces development time.
• Improved Energy Efficiency: High efficiency and low standby power consumption reduce energy costs.
• Enhanced System Reliability: Comprehensive protection features prevent damage from fault conditions.
• Flexible Operation: Adaptive control ensures optimal performance over a wide range of operating conditions.

Additional Details:

The ACT512EUS-T supports a wide input voltage range (85VAC to 265VAC) and is available in a compact eSOP-8 package. It utilizes advanced control techniques to achieve high efficiency and low standby power consumption. The device integrates a high-voltage power MOSFET, reducing the external component count. It also features a built-in soft-start function to minimize stress on components during startup. The ACT512EUS-T is designed to meet stringent safety and regulatory requirements, making it a reliable and cost-effective solution for AC-DC power conversion applications.