UCC3813PWTR-5G4

Product Overview

Category

UCC3813PWTR-5G4 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

• Integrated circuit
• Power management functionality
• High efficiency
• Compact size

Package

UCC3813PWTR-5G4 is available in a small package, typically in a TSSOP-14 package.

Essence

The essence of UCC3813PWTR-5G4 lies in its ability to efficiently manage power in various electronic devices.

Packaging/Quantity

This product is usually packaged in reels or tubes and is available in large quantities for industrial use.

Specifications

• Input Voltage Range: 2.7V to 18V
• Output Voltage Range: 0.8V to 16V
• Output Current: Up to 500mA
• Switching Frequency: Adjustable up to 1MHz
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

1. VREF: Reference voltage input
2. COMP: Error amplifier output
3. FB: Feedback pin for regulating output voltage
4. GND: Ground reference
5. RT/CT: Timing resistor/capacitor connection
6. CT: Timing capacitor connection
7. RT: Timing resistor connection
8. SS/TR: Soft-start/Timing resistor connection
9. TR: Timing resistor connection
10. SS: Soft-start capacitor connection
11. OSC: Oscillator timing capacitor connection
12. SYNC: Synchronization input
13. VIN: Input voltage
14. SW: Switch node

Functional Features

• Voltage mode control
• Adjustable switching frequency
• Soft-start capability
• Overcurrent protection
• Undervoltage lockout
• Error amplifier for precise regulation

Advantages and Disadvantages

Advantages

• High efficiency power management
• Compact size for space-constrained applications
• Adjustable switching frequency for flexibility
• Soft-start capability for smooth power-up
• Overcurrent protection for enhanced safety

Disadvantages

• Limited output current capacity (up to 500mA)
• Requires external timing components for operation

Working Principles

UCC3813PWTR-5G4 operates on the principle of voltage mode control. It regulates the output voltage by comparing it with a reference voltage (VREF) and adjusting the duty cycle of the internal switch accordingly. The error amplifier (COMP) provides feedback to ensure precise regulation. The switching frequency can be adjusted using external timing components connected to the RT/CT pins. The soft-start feature allows for gradual power-up, reducing stress on the system.

Detailed Application Field Plans

UCC3813PWTR-5G4 finds applications in various fields, including: 1. Power supplies for consumer electronics 2. Battery charging circuits 3. LED lighting systems 4. Industrial automation equipment 5. Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to UCC3813PWTR-5G4 are: - LM2576-ADJ - LT1073-5 - TPS5430-EP - MAX668

These models provide comparable power management capabilities and can be considered as alternatives based on specific requirements.

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