FAN5401UCX Integrated Circuits (ICs)

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The FAN5401UCX integrated circuit is an advanced synchronous buck regulator controller with Active Discharge (AD) and voltage compensated on-time (VCOT) control. It is based on a three-phase interleaved buck PWM structure, which makes it an ideal choice for high-performance, high-current applications in fields such as power management, motor control, and other power-related applications.

The FAN5401UCX integrated circuit is an ideal solution for efficiently charging lithium-ion (Li-ion) and other types of batteries. It offers efficient switching and adjustable output current, making it applicable for a variety of applications. In addition, the integrated circuit provides over-temperature protection and supports overvoltage protection. This makes it suitable for safe and reliable battery charging.

The FAN5401UCX integrated circuit is designed to operate in a low-voltage system environment. It has an operating range of 3V to 6.5V with a minimum input voltage of 2.8V. The device supports adjustable output voltage and current with a minimum output voltage of 0.8V and a maximum of 6V. The output current can be set up to 10A with a peak current of 60A. The device also features adjustment of output voltage and current using external pins.

The FAN5401UCX integrated circuit is highly efficient. It has an integrated high-side and low-side MOSFET driver, which provides efficient phase-shedding during light-load conditions, reducing switching losses and improving efficiency. Additionally, it features frequency hopping, which allows it to reduce output noise significantly. Finally, the device also includes a programmable thermal protection feature, which guards against input overloads or thermal overloads.

In terms of working principle, the FAN5401UCX integrated circuit uses Active Discharge (AD) and voltage compensated on-time (VCOT) control topologies. In this topology, the integrated circuit utilizes the AD feature to quickly and accurately adjust the on-time for each switching cycle, providing the required output voltage and current. The VCOT feature is then used to monitor the loop response and adjust the on-time of each cycle, ensuring that the output voltage and current are stable within the system’s operating range.

In conclusion, the FAN5401UCX integrated circuit is an advanced voltage regulator suitable for a wide range of applications. It is an ideal choice for efficient charging of lithium-ion and other types of batteries. In addition, its high efficiency, adjustable output voltage and current, and over-temperature protection makes it suitable for safe and reliable battery charging.

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