UCC2813QDR-2Q1

Product Overview

Category

UCC2813QDR-2Q1 belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various power supply designs, including switch-mode power supplies (SMPS), battery chargers, and LED drivers.

Characteristics

• High efficiency: The UCC2813QDR-2Q1 offers high efficiency due to its low-power consumption and optimized design.
• Wide input voltage range: It can operate with a wide input voltage range, making it suitable for different power supply applications.
• Protection features: This IC incorporates various protection features such as overvoltage protection (OVP), undervoltage lockout (UVLO), and thermal shutdown.

Package

The UCC2813QDR-2Q1 is available in a small outline package (SOIC) with 8 pins. This package provides good thermal performance and ease of soldering.

Essence

The essence of UCC2813QDR-2Q1 lies in its ability to efficiently regulate and control power in various applications, ensuring stable and reliable operation.

Packaging/Quantity

The UCC2813QDR-2Q1 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 0.8V to 10V
• Switching Frequency: Up to 500kHz
• Operating Temperature Range: -40°C to 125°C
• Supply Current: 2mA (typical)

Detailed Pin Configuration

The UCC2813QDR-2Q1 has the following pin configuration:

1. VREF: Reference voltage output
2. COMP: Error amplifier output
3. FB: Feedback input for voltage regulation
4. CS: Current sense input
5. GND: Ground reference
6. RT/CT: Timing resistor/capacitor connection
7. VCC: Power supply input
8. OUT: Switching output

Functional Features

• Voltage Regulation: The UCC2813QDR-2Q1 provides precise voltage regulation by comparing the feedback voltage with a reference voltage and adjusting the duty cycle of the switching output accordingly.
• Current Sensing: It incorporates current sensing to monitor and control the output current, ensuring safe operation and protection against overcurrent conditions.
• Soft Start: This IC includes a soft start feature that gradually ramps up the output voltage during startup, reducing stress on components and preventing excessive inrush current.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption and heat dissipation.
• Wide input voltage range allows for versatile application scenarios.
• Integrated protection features enhance system reliability and safety.
• Small package size facilitates space-constrained designs.

Disadvantages

• Limited output voltage range may not be suitable for certain specialized applications.
• Requires external timing components (resistor and capacitor) for proper operation.

Working Principles

The UCC2813QDR-2Q1 operates based on the principle of pulse width modulation (PWM). It regulates the output voltage by controlling the duty cycle of the switching output signal. By comparing the feedback voltage with a reference voltage, it adjusts the on-time and off-time of the switching signal to maintain the desired output voltage.

Detailed Application Field Plans

The UCC2813QDR-2Q1 finds extensive application in various power management systems, including: - Switch-mode power supplies (SMPS) for computers, televisions, and industrial equipment. - Battery chargers for portable devices, electric vehicles, and renewable energy systems. - LED drivers for lighting applications, both residential and commercial.

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to UCC2813QDR-2Q1 are: - LM2576-ADJ: A step-down voltage regulator with adjustable output voltage. - LT1074: A high-efficiency switching regulator with a wide input voltage range. - TPS5430: A synchronous buck converter with integrated power MOSFETs.

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

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