UC3834N

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Type:	Positive Fixed and Negative Fixed
Number of Outputs:	1
Current - Supply:	5.5mA
Voltage - Input:	5 V ~ 35 V
Operating Temperature:	0°C ~ 70°C
Package / Case:	16-DIP (0.300", 7.62mm)
Supplier Device Package:	16-PDIP
Base Part Number:	UC3834

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UC3834N Application Field and Working Principle

UC3834N is a linear regulator controller used for AC/DC power supplies, motor drives, and other low-voltage DC/DC converter applications. It is designed to control the output voltage and current of a switching power supply using a pulse-width-modulated (PWM) output that can be adjusted in order to accurately regulate the output voltage.

Features of UC3834N

The UC3834N offers several features that make it well-suited for AC/DC power supplies and motor drives. It has a single-input power supply, allowing it to be operated with a DC voltage range of 7V to 40V. It also has an internal error amplifier and wave shaping circuit, which allows for precise control of the output voltage and current. Additionally, it has a frequency range of 45kHz to 500kHz, maximizing its efficiency and minimizing the stress on the switching devices.

Function of UC3834N

The primary function of the UC3834N is to control the output voltage and current of the switching power supply. This is accomplished by the PWM output, which is adjustable in order to accurately regulate the output voltage. This is done by comparing the output voltage to a reference voltage, creating an error signal that is fed into the internal error amplifier and wave shaping circuits. The output of these circuits then generates a PWM signal that is used to control the duty cycle of the switching device, allowing for precise control of the output voltage and current.

Applications of UC3834N

UC3834N is well-suited for use in AC/DC power supplies and motor drives. With its single-input power supply, adjustable PWM output, and internal error amplifier and wave shaping circuit, it is able to precisely regulate the output voltage and current of a switching power supply, maximizing efficiency and minimizing stress on the switching devices. Additionally, its frequency range of 45kHz to 500kHz further increases its efficiency and performance.

Conclusion

UC3834N is an ideal low-voltage DC/DC converter for AC/DC power supplies and motor drives. Its single-input power supply, adjustable PWM output, and internal error amplifier and wave shaping circuit make it well-suited for these applications. Additionally, its frequency range of 45kHz to 500kHz maximize its efficiency and minimize the stress on the switching devices. This makes it an excellent choice for regulating the output voltage and current of a switching power supply.

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