UCC2813QDR-4Q1

Product Overview

Category

UCC2813QDR-4Q1 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
• Overvoltage and overcurrent protection
• Adjustable output voltage

Package

UCC2813QDR-4Q1 is available in a small outline package (SOIC) with 8 pins.

Essence

The essence of UCC2813QDR-4Q1 lies in its ability to efficiently regulate power in various electronic devices.

Packaging/Quantity

This IC is typically sold in reels, with each reel containing 2500 units.

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-4Q1 has the following pin configuration:

1. COMP: Compensation pin for feedback control loop.
2. FB: Feedback pin for regulating the output voltage.
3. VREF: Reference voltage pin for internal circuitry.
4. GND: Ground pin for connecting to the common ground.
5. CS: Current sense pin for monitoring the output current.
6. RT/CT: Timing resistor/capacitor connection pin.
7. VCC: Power supply pin for the IC.
8. OUT: Output pin for delivering regulated voltage.

Functional Features

• Constant voltage regulation
• Current mode control
• Soft-start function
• Overvoltage protection
• Overcurrent protection
• Under-voltage lockout

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption.
• Wide input voltage range allows for versatile applications.
• Overvoltage and overcurrent protection enhance system reliability.
• Adjustable output voltage provides flexibility.

Disadvantages

• Limited maximum output current may restrict certain high-power applications.
• Requires external components for proper operation.
• Sensitive to electromagnetic interference (EMI) due to high switching frequency.

Working Principles

UCC2813QDR-4Q1 operates based on the principle of current mode control. It regulates the output voltage by adjusting the duty cycle of the internal power switch. The feedback loop compares the output voltage with a reference voltage and adjusts the switch accordingly to maintain a stable output. The soft-start function gradually increases the duty cycle during startup to prevent excessive inrush current.

Detailed Application Field Plans

UCC2813QDR-4Q1 finds extensive use in various power management applications, including: - Switching power supplies - Battery chargers - LED drivers - Industrial automation systems - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as substitutes for UCC2813QDR-4Q1 are: - LM2576-ADJ - LT1073 - MC34063A - TPS5430

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

In conclusion, UCC2813QDR-4Q1 is a highly efficient integrated circuit used for power management applications. Its adjustable output voltage, wide input voltage range, and built-in protection features make it suitable for various electronic devices. However, its limited maximum output current and sensitivity to EMI should be taken into consideration during design and implementation.