UCC28C40D

The UCC28C40D is a high-performance voltage-mode PWM controller IC designed for power supply applications.This IC offers precise control over the output voltage regulation and current limit, making it ideal for designing efficient and reliable power converters.

Pinout

(Note:The pin configuration below is a general representation.Refer to the specific datasheet for precise details.)

• COMP:Compensation Pin
• FB:Feedback Pin
• SD:Shutdown Pin
• EN:Enable Pin
• RT/CT:Timing Pin
• REF:Reference Pin
• VCC:Positive Power Supply
• VREF:Voltage Reference Pin
• VSENSE:Voltage Sense Pin
• GND:Ground

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the UCC28C40D IC for a visual representation.

Key Features

• Voltage-Mode PWM Control:The UCC28C40D features voltage-mode control for precise regulation of output voltage and current limit in power supply designs.
• High Efficiency:With its advanced PWM control algorithm,this IC enables high efficiency and minimal power loss in power converter applications.
• Overcurrent Protection:Includes overcurrent protection features to safeguard the power supply and connected components from excessive currents.
• Wide Input Voltage Range:Operates over a wide input voltage range,making it suitable for various power supply configurations.
• Soft-Start Function:Incorporates a soft-start function to gradually ramp up the output voltage,preventing inrush currents and voltage spikes.

Note:For detailed technical specifications,please refer to the UCC28C40D datasheet.

Application

• Switched-Mode Power Supplies:Ideal for use in switched-mode power supplies for applications such as AC-DC converters and DC-DC converters.
• LED Drivers:Suitable for designing LED driver circuits with precise voltage and current regulation capabilities.
• Industrial Power Systems:Used in industrial power systems to regulate and control output voltages for various loads.

Functionality

The UCC28C40D is a voltage-mode PWM controller that ensures stable and efficient operation of power supply circuits.Its features and performance make it a reliable choice for power conversion applications.

Usage Guide

• Power Supply:Connect VCC(Pin 7)to the positive power supply, VREF(Pin 6)to the voltage reference, and GND(Pin 10)to ground.
• Feedback Loop:Connect the FB(Pin 2)and COMP(Pin 1)pins to configure the feedback loop for proper regulation.
• Timing Control:Adjust the timing characteristics using the RT/CT(Pin 5)pin to set the switching frequency and control loop response.

Frequently Asked Questions

Q:What is the purpose of the EN pin on the UCC28C40D?
A:The EN pin is used to enable or disable the operation of the PWM controller, allowing for power management control.

Q:Does the UCC28C40D support overvoltage protection?
A:Yes, the UCC28C40D includes features for overvoltage protection to prevent damage to the power supply components during fault conditions.