UCC2813QDR-1Q1

Product Overview

Category

UCC2813QDR-1Q1 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

UCC2813QDR-1Q1 is available in a small outline package (SOIC) with 8 pins.

Essence

The essence of UCC2813QDR-1Q1 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 30V
• Output Voltage Range: 0.8V to 28V
• Maximum Output Current: 500mA
• Operating Temperature Range: -40°C to 125°C
• Switching Frequency: 100kHz to 1MHz

Pin Configuration

UCC2813QDR-1Q1 has the following pin configuration:

```

---

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

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 divider to regulate the output voltage.
4. Current Sense (CS): Monitors the current flowing through the power circuit.
5. Ground (GND): Common ground reference for the IC.
6. Timing Components (RT/CT): Sets the switching frequency and duty cycle of the IC.
7. Output (OUT): Provides the regulated output voltage.

Advantages

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

Disadvantages

• Limited maximum output current may restrict certain high-power applications.
• Operating temperature range may not be suitable for extreme environments.

Working Principles

UCC2813QDR-1Q1 operates as a pulse width modulation (PWM) controller. It regulates the output voltage by adjusting the duty cycle of the switching transistor. 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 a stable output voltage.

Detailed Application Field Plans

UCC2813QDR-1Q1 finds applications in various fields, including:

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

Detailed and Complete Alternative Models

Some alternative models to UCC2813QDR-1Q1 include:

1. LM2576-ADJ
2. LT1073
3. MC34063A
4. TPS5430

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

In conclusion, UCC2813QDR-1Q1 is a versatile integrated circuit used for power management applications. Its high efficiency, adjustable output voltage, and various protection features make it suitable for a wide range of electronic devices.