UCC3813D-2G4

Product Overview

Category

UCC3813D-2G4 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power management applications.

Characteristics

• High efficiency
• Low power consumption
• Compact size
• Wide input voltage range

Package

UCC3813D-2G4 is available in a small outline package (SOP) with 8 pins.

Essence

The essence of UCC3813D-2G4 lies in its ability to efficiently regulate and control power in various electronic devices.

Packaging/Quantity

UCC3813D-2G4 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 1.23V to 37V
• Output Current: Up to 500mA
• Switching Frequency: 100kHz to 1MHz
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

1. COMP: Compensation pin for regulating output voltage stability.
2. FB: Feedback pin for setting the desired output voltage.
3. GND: Ground reference for the IC.
4. VREF: Reference voltage output pin.
5. RT/CT: Timing components connection pin.
6. CT: Timing capacitor connection pin.
7. RT: Timing resistor connection pin.
8. VCC: Power supply input pin.

Functional Features

• Voltage mode control for precise regulation.
• Adjustable output voltage through external resistors.
• Overcurrent protection for enhanced safety.
• Soft-start function to prevent excessive inrush current.
• Error amplifier for accurate feedback control.

Advantages

• High efficiency leads to reduced power dissipation.
• Wide input voltage range allows for versatile applications.
• Compact size enables integration into space-constrained designs.
• Excellent line and load regulation for stable output voltage.

Disadvantages

• Limited output current may not be suitable for high-power applications.
• Requires external components for proper operation.
• Sensitivity to noise in the system may affect performance.

Working Principles

UCC3813D-2G4 operates on the principle of voltage mode control. It compares the feedback voltage (FB) with a reference voltage (VREF) to regulate the output voltage. By adjusting the duty cycle of the internal oscillator, the IC controls the power switch to maintain the desired output voltage.

Detailed Application Field Plans

UCC3813D-2G4 finds application in various fields, including:

1. Power supplies for consumer electronics.
2. Battery charging circuits.
3. LED lighting systems.
4. Industrial automation equipment.
5. Automotive electronics.

Detailed and Complete Alternative Models

1. UCC3813D-1G4: Similar to UCC3813D-2G4 but with a different output voltage range.
2. UCC3813D-3G4: Similar to UCC3813D-2G4 but with a higher output current capability.
3. UCC3813D-4G4: Similar to UCC3813D-2G4 but with additional protection features.

These alternative models provide flexibility in choosing the most suitable IC based on specific requirements.

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