UC3543N

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Applications:	Power Supply, Supervisor
Voltage - Input:	4.5 V ~ 40 V
Voltage - Supply:	--
Current - Supply:	7mA
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Through Hole
Package / Case:	16-DIP (0.300", 7.62mm)
Supplier Device Package:	16-PDIP
Base Part Number:	UC3543

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UC3543N Application Field and Working PrincipleUC3543N is an efficient, high performance power supply controller and monitor manufactured by Intersil Corporation. It is designed to provide accurate and reliable power supply control and monitoring for a wide range of applications including embedded lighting, home automation, motor control and power supply design. Its working principle and application field are elaborated below.Working PrincipleUC3543N is a simple and efficient power supply controller which can be used to provide regulation and protection for various types of power supplies. It features a high-performance, wide range current-mode control loop along with a integrated low-dropout voltage regulator. The integrated voltage regulator is equipped with an adjustable reference voltage setting and an adjustable under-voltage lockout (UVLO) selection.The IC allows users to take advantage of the current mode control and low noise operation to effectively regulate and protect the power supply voltage. It allows users to easily set the maximum current through the use of an external resistor. This is known as the over-current protection (OCP) feature and it prevents the power supply from overloading and damaging the system.The integrated voltage regulator also offers a low noise operation and adjustable voltage settings. Users can easily change the voltage levels of the power supply using the external components. The IC also features an adjustable UVLO circuit that helps protect the system from under-voltage events. This ensures stable operation and prevents system damage.Application FieldUC3543N is widely used in many embedded lighting, home automation, motor control and power supply design applications. In embedded lighting applications, UC3543N can be used to provide reliable and efficient power supply regulation and protection. The low noise operation and adjustable voltage settings make it ideal for LED lighting applications.In home automation applications, UC3543N can be used to provide stable and secure powering of the system. The adjustable UVLO circuit helps protect the system from under-voltage events. The integrated low-dropout voltage regulator can be set to provide necessary voltage levels to the system, while the current-mode control ensures accurate and stable operation.In motor control applications, UC3543N can be used with a chopper circuit to provide efficient and accurate control of power level and speed of operation of the motor. It is ideal for motor control applications as it offers low noise operation and adjustable voltage settings. Finally, UC3543N is used in power supply design applications. The IC provides accurate and reliable power supply control and monitoring for a wide range of applications. It has a wide range current-mode control loop that can be adjusted by an external resistor for more accurate operation. The integrated voltage regulator also allows users to set adjustable reference voltages and an adjustable under-voltage lockout (UVLO) selection. All these features make UC3543N an ideal choice for power supply design applications.Overall, UC3543N is an efficient, high performance power supply controller and monitor with wide range current-mode control loop, integrated voltage regulator and adjustable voltage settings. It is suitable for wide range of applications including embedded lighting, home automation, motor control and power supply design. Its simple and reliable design makes it a popular choice for these applications.

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