LM3460M5-1.5/NOPB

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The LM3460M5-1.5/NOPB active PFC controller from Texas Instruments is a highly specialized power management device intended for use in active power factor correction (PFC) applications. It features exceptional performance in terms of power efficiency, line regulation, and Quasi-Resonant Mode operation. This device can operate over a wide range of input and output voltages, and has been designed to reduce system costs by providing an integrated solution for a complete active PFC stage. This paper will discuss the application field and working principle of the LM3460M5-1.5/NOPB.

The LM3460M5-1.5/NOPB is a PFC controller specifically designed for power factor correction applications in switch mode power supplies. It can switch at up to 400 kHz and can be used for electronic ballasts, AC/DC power adapters, and general SMPS applications. This device\'s performance is superior compared to traditional bridgeless PFC solutions, and it is fully compliant with active PFC standards such as EN61000-3-2, EN61000-3-3, and IEC6100-3-2. This device is also capable of reducing switching losses with its integrated Quasi-Resonant Mode, increasing efficiency and reducing audible noise and EMI.

The LM3460M5-1.5/NOPB provides an integrated solution for PFC applications, eliminating the complexity and cost associated with discrete bridge components. It also provides a digital interface for system monitoring, enabling the user to adjust settings in real time to optimize system performance. It also offers several protection features such as over-voltage protection, open-loop protection, over-temperature protection, and short-circuit protection. In addition, the device includes a full-bridge driver with fault management to protect against component failures.

The working principle of the LM3460M5-1.5/NOPB is based on an active bridge topology. The input voltage is sensed by the device and a control loop adjusts the power stage accordingly. This allows the device to accurately regulate the input voltage, resulting in improved power factor and increased system efficiency. In addition, the device utilizes a Quasi-Resonant Mode which reduces switching losses and improves waveform conformity.

The LM3460M5-1.5/NOPB also has several other features which make it ideal for active PFC applications. It has a high-side current sense voltage which allows for accurate power limiting without the need for a shunt resistor. The device also has an integrated MOSFET driver which reduces component count and minimizes power losses. It also includes an on-chip bootstrap diode which eliminates the need for an additional component. In addition, the device includes an integrated soft-start circuit which can reduce input inrush current.

In summary, the LM3460M5-1.5/NOPB is a highly advanced PFC controller which can be used for active PFC applications. It combines high power conversion efficiency with a low component count and is highly configurable. This device is capable of regulating input and output voltages over a wide range and is fully compliant with active PFC standards. In addition, it has several protection features and an integrated full-bridge driver with fault management. Finally, the device utilizes a Quasi-Resonant Mode which reduces switching losses and improves system performance. This sophisticated device is sure to provide the highest level of performance in active PFC applications.

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