UC3901NG4

Series:	--
Packaging:	Tube
Part Status:	Active
Applications:	Feedback Generator
Current - Supply:	5mA
Voltage - Supply:	4.5 V ~ 40 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Through Hole
Package / Case:	14-DIP (0.300", 7.62mm)
Supplier Device Package:	14-PDIP
Base Part Number:	UC3901

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UC3901NG4 Application Field and Working Principle

The UC3901NG4 is a power management integrated circuit (PMIC) that offers specialized functions for optimizing system performance and efficiency. It functions as an extended current source, controlling both power and temperature levels in a wide variety of applications, ranging from battery cell monitors to automotive systems. It is suitable for use in a variety of sectors, including consumer electronics, automotive, industrial and embedded systems.The main function of the UC3901NG4 is to provide the primary voltage supply to power devices. This power source is adjustable and can be customized to fit the application needs. The UC3901NG4 also allows for an extended-current source, giving greater current control than traditional supplies. The chip also provides a temperature-controlled and stable voltage input, making it suitable for use in harsh environments.Moreover, the UC3901NG4 features a range of advanced features as compared to other such ICs. These include high-efficiency switching, adjustable voltage and current, low-current-draw, reverse-polarity protection, high-voltage protection, low-output-impedance, and over-voltage protection. These allow for greater optimization and protection of the system’s hardware and components.The basic working principle of the UC3901NG4 is based on its two major components: the power regulator and the current limiter. A power regulator monitors the system’s voltage, current, and temperature levels and regulates the output voltage and current accordingly. This ensures that the maximum output is in line with the system’s requirements and prevents overvoltage or undervoltage incidents.The current limiter helps to maintain the current regulator\'s output voltage and current under the desired limits. It works by allowing a certain amount of current to be supplied, and then limiting the rest of the current according to the current limit set. This feature ensures that the system is not overloaded and there is always sufficient current to meet the system’s needs.In conclusion, the UC3901NG4 is a specialized PMIC, suitable for a wide range of applications. It features an adjustable voltage and current supply, temperature control, and a range of advanced features including high-efficiency switching, reverse-polarity protection, and over-voltage protection. The chip also includes a power regulator and current limiter providing greater system protection, optimization and performance.

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