UC3825ADWG4

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UC3825ADWG4 Application Field and Working Principle

The UC3825ADWG4 IC is a current-mode pulse-width modulation (PWM) controller with a power FET and power MOSFET designed for high power DC-to-DC converter applications. It can drive up to 10A of load current with a output voltage of up to 60V, making it ideal for a range of DC to DC converter applications. This IC is widely used in automotive, computer, networking and industrial applications.

Application Field

The UC3825ADWG4 can be used for a variety of DC to DC converter applications, ranging from 12V to 24V inputs and up to 60V outputs. It is used for power conversion in a variety of consumer and industrial devices including:

• Automotive audio systems and other accessories
• Computer peripherals and components
• Networking equipment
• Industrial power sources
• Server and storage systems
• Telecommunication equipment

The UC3825ADWG4 is designed to allow precise control of current and voltage in DC-to-DC conversion applications. It operates with up to 10A load current, making it ideal for use in a wide range of power conversion applications.

Working Principle

The UC3825ADWG4 uses current-mode control, in which a switching operation is generated based on the sense current input. The sense current is obtained from a sense resistor connected between the output and the feedback pin on the IC. The output voltage is controlled by increasing or decreasing the duty cycle of the output signal.

The UC3825ADWG4 includes a reset cycle that can be used to limit the peak current in the output stage of the converter. The reset cycle is triggered when the current exceeds a certain limit. The reset cycle forces the device to go into a low-power state for a period of time and then back to a high-power state.

The UC3825ADWG4 also features integrated short circuit protection, which is triggered when the output voltage drops below a specified level. This protection circuit limits the amount of current in the output stage, preventing damage to the device.

The UC3825ADWG4 includes an overvoltage protection circuit that is triggered when the output voltage exceeds a set threshold. This protects the device against overvoltage conditions, which can cause damage to the device.

The UC3825ADWG4 is designed to provide variable frequency control. This feature allows the device to be used in applications where the load requires variable frequency operation. The variable frequency control allows the device to accurately control the output frequency and prevent unwanted frequencies.

Conclusion

The UC3825ADWG4 is a versatile current-mode Pulse Width Modulation (PWM) controller that can be used for a variety of DC-to-DC conversion applications. The device features integrated short-circuit protection and overvoltage protection mechanisms as well as variable frequency control, allowing it to be used in a wide range of applications. With up to 10A output current and 60V output voltage, the UC3825ADWG4 is an ideal choice for a range of DC to DC conversion applications.

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