AP1661P-G1

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PMIC - PFC (Power Factor Correction) is an essential element of today\'s power systems. The AP1661P-G1 is a high efficiency Power Factor Corrector (PFC) designed to optimize the power factor of ac/dc adapters, LED drivers, and other power systems requiring high power factor and low harmonic distortion levels. The power factor correction supported by the AP1661P-G1 will ensure compliance with the harmonic emission standards such as IEC61000-3-2.

The AP1661P-G1 features a single-stage PFC converter structure which combines a current-mode PFC controller with a peak current mode buck regulator to achieve high efficiency, low operating losses, and good transient response. The current mode PFC controller includes an adjustable soft-start time and is auto-reversible for both nominal and low line operation. The peak current mode buck regulator works at high frequency for fast transient response and low ripple. It includes a gate drive that adjusts the signal amplitude for fast load response and high efficiency.

The AP1661P-G1 utilizes a high performance digital signal processor (DSP) to provide a wide input voltage range and to enable an advanced fast-transient response. It incorporates an over-voltage protection (OVP) circuit, internal thermal protection, and a cycle-by-cycle current limit to provide protection to the power conversion circuit. The AP1661P-G1 is also capable of accurate current sensing and monitoring, providing system designers with the flexibility to customize the design for higher efficiency conversion.

The AP1661P-G1’s wide input range makes it ideal for a variety of applications, from ac/dc adapters, LED drivers, and other power systems. It’s a great way to optimize the power factor in a power system. The peak current mode buck regulator’s high efficiency and fast transient response are key features that enable improved system performance and overall power savings.

In addition, the AP1661P-G1’s digital control provides an advantage to power system designers. The OVP, internal thermal protection, and cycle-by-cycle current limit circuits all ensure that the power conversion is safe and reliable. The digital control also allows the system designer to customize the design, providing a wide range of features and protection levels.

The AP1661P-G1’s ability to optimize the power factor and its advanced digital control capabilities make it a great choice for designers looking for a high efficiency solution for popular applications. Its wide input voltage range and fast transient response make it ideal for demanding applications, while its advanced digital control provides flexibility and a high level of protection.

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