UCC2813QDR-5Q1

Product Overview

Category

UCC2813QDR-5Q1 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

• UCC2813QDR-5Q1 is a high-performance, low-power current mode PWM controller.
• It operates with a wide input voltage range and is suitable for various power supply designs.
• The device offers excellent precision and stability in regulating output voltage and current.
• It incorporates various protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown.
• UCC2813QDR-5Q1 is designed to operate in harsh automotive environments, making it ideal for automotive power systems.

Package

The UCC2813QDR-5Q1 comes in a small outline package (SOIC) with 8 pins.

Essence

The essence of UCC2813QDR-5Q1 lies in its ability to efficiently control and regulate power in automotive applications, ensuring stable and reliable operation.

Packaging/Quantity

The UCC2813QDR-5Q1 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: 0.8V to 36V
• Operating Temperature Range: -40°C to 125°C
• Switching Frequency: Up to 500kHz
• Maximum Duty Cycle: 100%
• Quiescent Current: 2.5mA

Detailed Pin Configuration

The UCC2813QDR-5Q1 has the following pin configuration:

1. COMP: Compensation pin for external compensation network.
2. FB: Feedback pin for regulating the output voltage.
3. CS: Current sense pin for sensing the inductor current.
4. GND: Ground reference pin.
5. VREF: Reference voltage output pin.
6. RT/CT: Timing resistor and timing capacitor connection pins.
7. VCC: Power supply input pin.
8. OUT: Output pin for driving external power MOSFET.

Functional Features

1. Current Mode Control: UCC2813QDR-5Q1 utilizes current mode control to provide excellent line and load regulation, as well as fast transient response.
2. Protection Features: The device incorporates various protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown to ensure safe operation under different conditions.
3. Wide Input Voltage Range: With an input voltage range of 4.5V to 40V, the UCC2813QDR-5Q1 can be used in a wide range of power supply designs.
4. High Efficiency: The controller's low-power design and efficient switching mechanism contribute to high overall system efficiency.
5. Automotive Grade: UCC2813QDR-5Q1 is specifically designed to meet the stringent requirements of automotive applications, ensuring reliable performance in harsh environments.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile power supply designs.
• Excellent precision and stability in regulating output voltage and current.
• Incorporates various protection features for enhanced safety.
• Designed for automotive applications, ensuring reliability in harsh environments.
• High efficiency contributes to energy savings.

Disadvantages

• Limited pin configuration options due to the compact package size.
• May require additional external components for specific application requirements.

Working Principles

The UCC2813QDR-5Q1 operates based on the current mode control principle. It senses the inductor current through the CS pin and adjusts the duty cycle of the output waveform accordingly. By regulating the current flowing through the inductor, it maintains a stable output voltage. The feedback loop, controlled by the FB pin, compares the output voltage with a reference voltage (VREF) to provide precise regulation.

Detailed Application Field Plans

The UCC2813QDR-5Q1 is widely used in various automotive power management applications, including:

1. DC-DC Converters: It can be employed in DC-DC converters for efficient power conversion in electric vehicles, hybrid vehicles, and other automotive systems.
2. LED Lighting Systems: The controller can be utilized in LED lighting systems to regulate the current and ensure consistent brightness.
3. Battery Charging Systems: UCC2813QDR-5Q1 can be integrated into battery charging systems to control the charging process and protect the battery from overvoltage or overcurrent conditions.
4. Power Supplies: It can be used in power supplies for automotive infotainment systems, navigation devices, and other electronic components.

Detailed and Complete Alternative Models

1. UCC2813-1: Similar to