ON Semiconductor NCP1308DR2G PWM Current-Mode Controller

The NCP1308DR2G from ON Semiconductor is a highly integrated PWM current-mode controller designed for off-line power supplies. This versatile component is housed in a compact SOIC-8 package, making it suitable for space-constrained applications without compromising performance. Its advanced features enable the design of robust, efficient, and cost-effective power supplies for a wide range of electronic devices.

Key Features

• Current-Mode Control: The NCP1308DR2G utilizes current-mode control to provide excellent output voltage regulation and fast transient response, ensuring stable operation under varying load conditions.
• Adjustable Frequency: The switching frequency is adjustable, which allows designers to optimize the power supply for efficiency, size, and electromagnetic interference (EMI) performance.
• Frequency Foldback: To enhance efficiency at light loads, the NCP1308DR2G features frequency foldback, reducing switching losses and improving overall energy consumption.
• Auto-Recovery Overload Protection: Built-in overload protection automatically recovers once the overload condition is removed, helping to protect the power supply and the end application from damage.
• Low Startup Current: The low startup current minimizes stress on the startup resistor and reduces power dissipation, contributing to the longevity of the power supply.
• Dynamic Self-Supply: This eliminates the need for an auxiliary winding or an additional bias supply, simplifying the power supply design and reducing component count.

Applications

The NCP1308DR2G is ideal for a variety of power supply applications including:

• AC-DC adapters for laptops and personal electronics
• Offline battery chargers
• Standby and auxiliary power supplies
• Consumer electronics such as TVs and audio systems

ON Semiconductor's NCP1308DR2G is designed to meet the needs of modern power supply designs by offering a combination of performance, flexibility, and reliability. Its advanced protection features and energy-saving capabilities make it a smart choice for designers looking to create efficient and durable power solutions.