TNY280PN

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TNY280PN is a type of power management integrated circuit (PMIC) and a popular AC/DC converter and offline switcher. AC/DC converter utilizes power from a source such as the line voltage or a secondary windings of a transformer to change a AC power into constant voltage or isolated DC output. Offline switcher is responsible from constituting an AC/DC power supply without relying energy from an external power grid. It has advantages such as high efficiency and reduced size, making it ideal for use in consumer electronics, industrial equipment, and other consumer products.This PMIC device consists of the primary side driver stage, a power switch, and a feedback loop. Its primary side consists of a controlled switch, typically a power MOSFET, connected to the supply voltage. The power switch is controlled by a transformer driver, which is activated by the primary side of the circuit with a Proportional–Integral–Derivative (PID) control algorithm. The primary side of the TNY280PN have an integrated low-voltage power supply built-in, ensuring that the device can start-up from a low-voltage supply without additional energy from the mains.This device monitors the output voltage and current over the different states transitions of the power switch. It uses a feedback loop with an accurate voltage comparator to adjust its output voltage via the PID controller. A single inductor is used to generate the output voltage from switching energy from the supply voltage to the load. This single-stage AC/DC converter will typically output a fixed low-voltage output of about 12V to 24V and can step a higher source voltage down to the desired voltage level.Furthermore, the stability and transient response of the system can be enhanced by fine-tuning the PWM parameters such as frequency and duty cycle. Overall, the device has excellent efficiency, high accuracy and reliability, low standby power consumption and low electromagnetic interference (EMI).The TNY280PN is a versatile and efficient device that is perfect for use in AC/DC transformer applications like notebook computers, portable home electronics, power tools, and many others. To sum up, the TNY280PN is an excellent choice for AC/DC converter and offline switcher applications due to its high performance, excellent power efficiency, and cost-effectiveness.

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