NCP1397ADR2G

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NCP1397ADR2G is a PMIC (Power Management Integrated Circuit) that is found in many modern electronic devices such as mobile phones, laptops, tablets and more. It is an AC-DC converter, an offline switch and an embedded power supply manager all in one. It is highly efficient in converting the AC mains voltage to multiple direct current voltages, saving energy and prolonging the device\'s battery life.

NCP1397ADR2G is a device based on a power conversion architecture called flyback. This topology is widely used in AC-DC switching power supplies. It consists of a transformer, a primary control circuit and a secondary control circuit. The NCP1397ADR2G also integrates a MOSFET to simplify the external components.

In the flyback topology, the transformer works as a galvanic isolation device. Its primary winding is connected to the input AC voltage source and switches its output winding to the output DC voltage. A feedback loop is used to maintain the DC voltage in a narrow range, thus ensuring the stability of the electrical power conversion process. The primary side controller, provided by the NCP1397ADR2G, monitors the voltage of the output battery and adjusts the switching frequency of the MOSFET accordingly.

The NCP1397ADR2G also integrates a secondary side controller which assists the primary controller in monitoring the voltage of the output battery. Additionally, this secondary controller acts as an over-voltage, short-circuit and reverse-battery protection circuit.

The NCP1397ADR2G is capable of sustaining maximum operational duty cycle of up to 95% and achieving an efficiency rate of up to 92%. It is optimized to operate with a kick-start voltage of IVC(Kick) < 4V, thus providing a soft-start procedure.

Other notable features of the NCP1397ADR2G include small form factor desktop/wearable applications, low-standby power, high outdoor light exposure, low supply current and improved standby and light load performance.

Generally, the NCP1397ADR2G offers enhanced integration, superior performance and superior system level protection. The device is suitable for customers who need a reliable and efficient power supply in a small and low-cost form factor.

The main applications of the NCP1397ADR2G include mobile phones, notebook computers, E-readers and other portable devices that require a compact and efficient power supply.

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