UCC2813D-2G4

Product Overview

Category

UCC2813D-2G4 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power management applications.

Characteristics

• High efficiency
• Low standby power consumption
• Wide input voltage range
• Adjustable output voltage
• Overcurrent protection
• Thermal shutdown protection

Package

UCC2813D-2G4 is available in a small outline package (SOP) with 8 pins.

Essence

The essence of UCC2813D-2G4 lies in its ability to efficiently regulate and control power in various electronic devices.

Packaging/Quantity

This IC is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 25V
• Output Voltage Range: 1.23V to 20V
• Output Current: Up to 500mA
• Switching Frequency: 100kHz to 1MHz
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

UCC2813D-2G4 has the following pin configuration:

```

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| | --| VREF |-- --| COMP |-- --| FB |-- --| CS |-- --| GND |-- --| RT/CT |-- --| VCC |-- |___________| ```

Functional Features

1. Voltage Reference (VREF): Provides a stable reference voltage for precise regulation.
2. Error Amplifier (COMP): Compares the feedback voltage with the reference voltage and generates an error signal.
3. Feedback (FB): Connects to the output voltage to regulate it based on the error signal.
4. Current Sense (CS): Monitors the output current and provides feedback for current limiting.
5. Ground (GND): Common ground reference for the IC.
6. Timing Components (RT/CT): External resistors and capacitors connected to set the switching frequency and other timing parameters.
7. Power Supply (VCC): Provides power to the IC.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption.
• Wide input voltage range allows for versatile applications.
• Adjustable output voltage provides flexibility.
• Overcurrent and thermal shutdown protection enhance safety.

Disadvantages

• Limited output current capacity may not be suitable for high-power applications.
• Requires external components for proper operation.

Working Principles

UCC2813D-2G4 operates as a pulse width modulation (PWM) controller. It regulates the output voltage by adjusting the duty cycle of the switching waveform. The error amplifier compares the feedback voltage with the reference voltage, generating an error signal that controls the duty cycle. By modulating the duty cycle, the IC maintains the desired output voltage.

Detailed Application Field Plans

UCC2813D-2G4 finds applications in various fields, including: 1. Power supplies for consumer electronics 2. Battery chargers 3. LED lighting systems 4. Industrial automation equipment 5. Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to UCC2813D-2G4 include: 1. LM2576-ADJ 2. LT1073 3. MC34063A 4. TPS5430

These models offer similar functionality and can be used as alternatives depending on specific requirements.

In conclusion, UCC2813D-2G4 is a versatile integrated circuit used for power management applications. Its high efficiency, adjustable output voltage, and built-in protection features make it suitable for various electronic devices. However, its limited output current capacity and external component requirements should be considered when selecting this IC for specific applications.