UCC3583N - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Mode PWM Controller

Characteristics: - High-performance voltage mode PWM controller - Designed for use in power supply applications - Offers precise regulation and control of output voltage - Enables efficient power conversion

Package: DIP-8 (Dual In-line Package, 8 pins)

Essence: UCC3583N is a voltage mode PWM controller that provides accurate regulation and control of output voltage in power supply applications.

Packaging/Quantity: The UCC3583N is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 10V to 30V
• Output Voltage Range: 0V to 5V
• Operating Temperature Range: -40°C to +85°C
• Maximum Duty Cycle: 100%
• Frequency Range: 50kHz to 500kHz
• Supply Current: 5mA (typical)
• Output Current: 200mA (maximum)

Detailed Pin Configuration

The UCC3583N features an 8-pin Dual In-line Package (DIP-8) with the following pin configuration:

1. VREF: Reference voltage input
2. COMP: Error amplifier output
3. FB: Feedback voltage input
4. GND: Ground reference
5. RT/CT: Timing resistor/capacitor connection
6. CT: Timing capacitor connection
7. OSC: Oscillator timing capacitor connection
8. VCC: Power supply voltage input

Functional Features

• Voltage Mode Control: The UCC3583N utilizes voltage mode control to regulate the output voltage of power supplies accurately.
• Error Amplifier: The built-in error amplifier ensures precise regulation by comparing the feedback voltage with the reference voltage.
• Oscillator: The integrated oscillator generates a stable frequency for the PWM control loop.
• Soft Start: The soft start feature allows gradual ramp-up of the output voltage, reducing stress on components during startup.
• Protection Features: The UCC3583N incorporates various protection features such as overvoltage protection and current limiting to safeguard the power supply and connected devices.

Advantages and Disadvantages

Advantages: - Accurate regulation of output voltage - Efficient power conversion - Integrated protection features - Compact DIP-8 package for easy integration

Disadvantages: - Limited output current capability (200mA maximum) - Restricted operating temperature range (-40°C to +85°C)

Working Principles

The UCC3583N operates based on the voltage mode control principle. It compares the feedback voltage from the power supply's output with a reference voltage. The error amplifier amplifies the difference between these voltages and generates an error signal. This error signal is then used to adjust the duty cycle of the PWM signal generated by the internal oscillator. By modulating the duty cycle, the UCC3583N regulates the output voltage accurately.

Detailed Application Field Plans

The UCC3583N finds applications in various power supply systems, including: 1. Switching Power Supplies 2. DC-DC Converters 3. Battery Chargers 4. LED Drivers 5. Industrial Control Systems

Detailed and Complete Alternative Models

1. UC3843: Voltage Mode PWM Controller with higher output current capability.
2. TL494: PWM Controller with additional features like dead-time control and shutdown function.
3. SG3525: PWM Controller designed for high-frequency applications.
4. MC34063: Step-Up/Step-Down DC-DC Converter Controller with integrated switch.

These alternative models offer similar functionality to the UCC3583N and can be considered as alternatives based on specific requirements.

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