UCC2819APWR

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-performance PWM Controller
• Package: TSSOP-20
• Essence: Regulating and controlling power supply in various applications
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 30V
• Output Voltage Range: 0.8V to 28V
• Operating Temperature Range: -40°C to 125°C
• Switching Frequency: Up to 1MHz
• Duty Cycle Range: 0% to 100%
• Maximum Output Current: 1A
• Protection Features: Overvoltage, Undervoltage, Overcurrent, Overtemperature

Detailed Pin Configuration

The UCC2819APWR IC has a total of 20 pins. The pin configuration is as follows:

1. COMP: Compensation Pin
2. FB: Feedback Pin
3. VREF: Reference Voltage Pin
4. CS: Current Sense Pin
5. SS/TR: Soft-Start/Shutdown Pin
6. RT/CT: Timing Components Pin
7. GND: Ground Pin
8. VDD: Supply Voltage Pin
9. SYNC: Synchronization Pin
10. NC: No Connection
11. NC: No Connection
12. NC: No Connection
13. NC: No Connection
14. NC: No Connection
15. NC: No Connection
16. NC: No Connection
17. NC: No Connection
18. NC: No Connection
19. NC: No Connection
20. NC: No Connection

Functional Features

• High-performance pulse-width modulation (PWM) controller
• Wide input voltage range for versatile applications
• Precise regulation of output voltage
• Adjustable switching frequency for optimization
• Comprehensive protection features for enhanced reliability
• Soft-start and shutdown functionality for smooth operation
• Synchronization capability for multi-phase operation

Advantages and Disadvantages

Advantages: - High-performance and reliable power management solution - Wide input voltage range allows for flexibility in various applications - Precise regulation ensures stable output voltage - Comprehensive protection features enhance system safety - Soft-start and shutdown functionality prevent sudden voltage spikes - Synchronization capability enables multi-phase operation for higher power delivery

Disadvantages: - Limited maximum output current of 1A may not be suitable for high-power applications - TSSOP-20 package may require careful handling during assembly

Working Principles

The UCC2819APWR is a high-performance PWM controller designed for power management applications. It operates by regulating the duty cycle of the PWM signal to control the power supply output voltage. The feedback pin (FB) monitors the output voltage and compares it with a reference voltage (VREF). Any deviation between the two voltages is used to adjust the duty cycle, ensuring precise regulation.

The IC also incorporates various protection features such as overvoltage, undervoltage, overcurrent, and overtemperature protection. These safeguards help prevent damage to the power supply and connected components in case of abnormal operating conditions.

Detailed Application Field Plans

The UCC2819APWR is widely used in various power management applications, including but not limited to:

1. Switching Power Supplies: The IC can be utilized in AC/DC or DC/DC switching power supplies to regulate and control the output voltage efficiently.
2. Battery Chargers: It can be employed in battery charging circuits to ensure proper charging voltage and current regulation.
3. LED Lighting: The IC can be integrated into LED driver circuits to provide accurate and stable power supply for LED lighting systems.
4. Industrial Automation: It finds application in industrial automation systems where precise power management is crucial for reliable operation.
5. Automotive Electronics: The IC can be used in automotive electronics, such as power converters and motor control circuits.

Detailed and Complete Alternative Models

1. UCC2819ADR
2. UCC2819DTR
3. UCC2819N
4. UCC2819PW
5. UCC2819QDR

These alternative models offer similar functionality and characteristics to the UCC2819APWR, providing flexibility in component selection based on specific requirements.

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