ON Semiconductor NCP1378DR2G PWM Current-Mode Controller

The NCP1378DR2G from ON Semiconductor is a versatile PWM current-mode controller designed for high-performance power supply applications. This component integrates a range of features to enhance the efficiency and reliability of switched-mode power supplies (SMPS), particularly in low-power standby and adapter solutions.

Key Features

• Current-Mode Control: The NCP1378DR2G utilizes current-mode control to provide excellent line and load regulation, as well as simplified loop compensation.
• Frequency Foldback: To improve efficiency at light loads, the device features frequency foldback, which reduces switching losses by lowering the operating frequency.
• Dynamic Self-Supply: This eliminates the need for an auxiliary winding or external bias supply, simplifying the power supply design.
• Adjustable Overcurrent Protection: The component includes an adjustable overcurrent protection feature, which helps to prevent damage to the power supply during overload conditions.
• Auto-Recovery Short-Circuit Protection: In the event of a short circuit, the NCP1378DR2G automatically recovers, reducing the need for manual intervention or component replacement.
• Frequency Jittering: The built-in frequency jittering helps in reducing electromagnetic interference (EMI), allowing for a quieter operation and easing EMI filter requirements.
• Low Standby Power: Designed with energy efficiency in mind, the NCP1378DR2G helps achieve low standby power consumption, making it suitable for energy-saving applications.

Applications

The NCP1378DR2G is ideal for a variety of applications, including:

• AC-DC adapters for notebooks, tablets, and other portable devices
• Offline battery chargers
• Standby and auxiliary power supplies
• Consumer electronics power supplies

With its robust feature set and ON Semiconductor's commitment to quality, the NCP1378DR2G is a reliable choice for designers looking to create efficient and durable power supply solutions. Its compact SOIC-7 package allows for a minimal footprint on the PCB, making it an excellent choice for space-constrained applications.