The OB3652NCPA, manufactured by On-Bright, is a highly integrated and efficient power control IC designed for offline flyback converter applications. It incorporates advanced features to achieve high performance, low standby power consumption, and robust protection. This IC is suitable for various applications, including power adapters, LED lighting, and auxiliary power supplies.

Applications

• Power adapters for mobile devices and laptops
• LED lighting drivers
• Auxiliary power supplies in consumer electronics
• Battery chargers

Features

• Integrated high-voltage power MOSFET
• Valley switching operation
• Frequency jittering for reduced EMI
• Built-in soft-start
• Comprehensive protection features: Over-Voltage Protection (OVP), Over-Current Protection (OCP), Over-Temperature Protection (OTP), Short-Circuit Protection (SCP)
• Low start-up current
• Low standby power consumption

Benefits

• High Efficiency: Valley switching minimizes switching losses, resulting in high energy efficiency.
• Reduced BOM Cost: Integrated MOSFET reduces the need for external components.
• Enhanced Reliability: Comprehensive protection features ensure robust operation and prevent damage.
• Simplified Design: Integrated functions simplify the design process.
• Improved EMI Performance: Frequency jittering reduces electromagnetic interference.

Additional Details

The OB3652NCPA operates in valley switching mode, significantly reducing switching losses and improving efficiency, especially under light load conditions. The frequency jittering function helps to reduce EMI emissions, simplifying compliance with regulatory standards. The integrated soft-start function limits the inrush current during startup, preventing stress on the power components. The device is equipped with multiple protection features, including over-voltage, over-current, over-temperature, and short-circuit protection, ensuring safe and reliable operation. The low standby power consumption helps to meet stringent energy efficiency requirements. It is available in a compact package suitable for space-constrained applications.