NCP1219AD100R2G

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PMIC or Power Management Integrated Circuit is a highly specialized type of semiconductor designed to help minimize power consumption in a wide range of devices. Commonly used in consumer electronics and industrial-grade equipment, a PMIC chip’s primary function is to regulate and monitor the flow of power from the primary power source. The NCP1219AD100R2G is a particularly versatile standalone optimized-output offline switcher PMIC by ON Semiconductor. Let’s dive into the application field and working principle of the NCP1219AD100R2G.

Application Field

The NCP1219AD100R2G is an ideal solution for use over a wide input output voltage range of 95 to 265VAC and 10W to 100W power levels. It features a high efficiency, PFC, and standby functionality, making it suitable for applications with universal inputs such as desktop computers, monitors, televisions, and more. The versatile chip also offers line regulation, allowing it to adjust itself to varying input voltages while maintaining the same output. It is suitable for use in adapters, chargers, AC/DC converters, and off-line switching power supplies.

Working Principle

The NCP1219AD100R2G is based on an offline PFC/PWM hybrid primitive to ensure high efficiency. The chip contains a primary power section, a secondary control block, a startup block, and a gate drive block. Its power section consists of a start-up circuit, a main power switch, a reset circuit, an overvoltage protection circuit, and various other components. The secondary control block, as the name implies, is responsible for controlling the entire circuit, while the gate drive block is used to supply power to the internal switching devices.

The startup block makes use of a feedback voltage to detect when the input voltage is within the operating range of the chip. When the input voltage rises, the chip’s startup circuit will be activated. Once the input voltage reaches the pre-determined threshold, the main power switch is activated, allowing the flow of power to the output terminals. The chip also contains a reset circuit which will cut the power to the output if it detects an under or over voltage.

The main power switch in the chip is a highly efficient MOSFET. The main power switch will then be opened and closed at a certain frequency, depending on the desired output voltage. Once the output voltage is reached, the chip will regulate the frequency to keep the output voltage stable. The reset circuit can detect any irregularities such as overvoltage or undervoltage and will accordingly cut the power to the output.

In conclusion, the NCP1219AD100R2G is a versatile and highly efficient AC/DC converter and offline switcher PMIC, which is suitable for a wide input/output voltage range. With its efficient power section, secondary control block, startup block, and gate drive block, it can meet the requirements of modern consumer electronics and industrial products, making it an ideal solution for any application.

The specific data is subject to PDF, and the above content is for reference