NCP1340A3D1R2G

PMIC - AC DC Converters, Offline Switchers

The NCP1340A3D1R2G is a high performance, easy-to-configure, integrated AC DC converter that is designed for offline switching applications. The device integrates a controller and a power switch, as well as a number of input and output components that are necessary to provide a complete AC-DC conversion solution. The output stage of the NCP1340A3D1R2G consists of an optimized size MOSFET and a rectification bridge. The MOSFET has a low RDS ON, ensuring high efficiency in all types of no-load and low-load applications.

Features

• Wide input voltage range: 5 V to 36 V
• Integrated MOSFET
• Output voltage adjustable from 0.1 V to VIN
• Frequency range up to 100 kHz
• High efficiency and good power dissipation
• Integrated protection features
• User-programmable features
• No opto-couplers required

Application fields

The NCP1340A3D1R2G is widely used in many types of offline, low-power AC-DC converter applications such as industrial, commercial, and telecom power supplies, DC/DC converters, solar micro-inverters, UPS systems, and other applications that require a simple, space-saving solution.

Working principle

The NCP1340A3D1R2G operates by the switching of the integrated MOSFET, resulting in an AC input voltage source being transformed into a DC output voltage source. The operation is controlled by an internal clock that switches the MOSFET at predetermined rates. The frequency is adjustable from 10 kHz to 100 kHz. The output voltage is adjustable from 0.1V to VIN by using an external feedback resistor network. The output voltage range is from 1.8V to 36V, depending on the input voltage.

The NCP1340A3D1R2G provides high efficiency and good power dissipation due to its improved low RDS ON. It features protection circuits such as over voltage protection, over current protection and short circuit protection, which protect the internal circuit and chip. The device also includes a number of user-programmable features, such as adjustable switching frequency and output voltage. This allows the user to customize the NCP1340A3D1R2G to their specific application.

The device is designed to provide a reliable and cost-effective AC-DC conversion solution in a wide range of applications. The small size of the device and its integrated components makes it suitable for applications that require a small amount of space, such as telecom power supplies. The device also features integrated EMI filtering, which reduces the amount of EMI noise emitted by the device.

Conclusion

The NCP1340A3D1R2G is a high-performance and easy-to-configure AC DC converter that is designed for a variety of offline switching applications. The device integrates a controller, power switch, input and output components to provide a complete AC-DC conversion solution. The device features a wide input voltage range and adjustable output voltage, as well as integrated protection circuits and user-programmable features. The small size and integrated components make the NCP1340A3D1R2G suitable for applications that require a small amount of space, such as telecom power supplies.