MC35FS4500NAE

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Introduction

The MC35FS4500NAE is an advanced power management integrated circuit (PMIC) tailored for applications that require higher levels of efficiency and reliability. This IC offers a multitude of features that help reduce voltage drop and protect external components from over-voltage, current and thermal storms. Its flexible on-chip power-switching and control system is designed to support a wide range of applications, including those in consumer, medical, and automotive applications.

Application Field

The MC35FS4500NAE is designed to meet specific needs of embedded power systems and battery powered applications. It is able to support wide range of input voltage range, up to 28V. A typical application could include systems powered by solar, wind, electric or gas. The MC35FS4500NAE could offer several advantages for these applications, such as lower Vin (Input voltage) with higher efficiency, wide input voltage range, internal voltage management, fault protection, and robust control of output voltage. Additionally, the MC35FS4500NAE offers built-in overvoltage and overcurrent protection, which prevents system-level components from potential damages while operating in harsh environment. Besides, the IC is able to sense voltage and current gains and adjusts them accurately to the output voltage. It also provides Thermal shutdown-per-channel protection feature that is particularly useful for high-power applications.

Working Principle

The MC35FS4500NAE has an internal power switching system that operates on a range of input voltages, from 5V to 28V. The IC also contains various protection features such as undervoltage protection, overvoltage protection and thermal protection. To control output voltage, the MC35FS4500NAE uses a unique PWM control algorithm which accurately adjust the output voltage and keeps it in a narrow range. The MC35FS4500NAE includes an on-chip current sense amplifier which can sense input current and output current with higher accuracy. The current sensing circuit can perform real-time measured current sensing, suitable for both high-reliability voltage and current applications.In addition, to keep the system running safely and reliably, the MC35FS4500NAE has integrated voltage regulation and over-temperature protection features. The MC35FS4500NAE also provides an Advanced Voltage Gain Tracking(AVGT) function. This function is designed to reduce output voltage ripple and noise, which improves system efficiency. The AVGT achieves lower output voltage ripple by adjusting the switching frequency and/or gain settings based on output voltage. The result is a lower, more consistent voltage that is not affected by external environmental factors.

Conclusion

The MC35FS4500NAE is a high-performance PMIC tailored for sophisticated power management applications. The IC provides accurate power regulation for high voltage applications and includes robust protection features, such as overvoltage protection, overcurrent protection, and temperature protection. The AVDT feature can keep the output voltage ripple and noise low in order to increase the system efficiency. The MC35FS4500NAE is ideal for embedded power systems and battery-powered applications.

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