TEA1532AT/N1/DG,11 Integrated Circuits (ICs)

PMIC - PFC (Power Factor Correction) typically refers to the use of active components such as transistors, capacitors, and inductors to adjust the electric current of an AC waveform so that the waveform is closer to a sine wave. This helps to minimize energy losses that can be caused by waveform distortion.

TEA1532AT/N1/DG is a Power Factor Correction PMIC from NXP. It is a popular IC for application in telecom adapters, power over Ethernet (PoE) devices, and LCD TVs/monitors. The IC offers four integrated low-side power switches, which can be used to drive a buck converter and two additional power switches, in addition to two totem poles outputs and two analog outputs. The built-in control logic is designed to meet the requirements of the IEC 60950-1 safety standard, allowing the device to be used in applications with stringent safety requirements.

The TEA1532AT/N1/DG provides several features that allow it to be more efficient than competing PMIC. Its integrated protection features include over-voltage, short circuit, over-temperature, undervoltage, and overload protection. Additionally, the IC includes a voltage detection function, which can be used to monitor the input and output voltages of the system. The TEA1532AT/N1/DG also includes active bridgeless PFC to reduce quiescent current and improve power factor and efficiency.

The working principle of the TEA1532AT/N1/DG is fairly straightforward. The device senses the input voltage, adjust the frequency of the switching signals accordingly, and then drives the output transistors to adjust the output voltage. The active bridgeless PFC helps reduce quiescent current and improve power factor, while the built-in protection features help to guard against short circuit, over-voltage, over-temperature and under-voltage conditions.

The TEA1532AT/N1/DG is an ideal solution for applications that require high efficiency and reliable power factor correction, such as telecom adapters, PoE devices and LCD TVs/monitors. Its integrated protection features, active bridgeless PFC, and voltage detection function make it a well-rounded PMIC for these types of applications.