UCC3813DTR-3G4

Product Overview

Category

UCC3813DTR-3G4 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power management applications.

Characteristics

• High efficiency
• Low power consumption
• Compact size
• Wide input voltage range

Package

UCC3813DTR-3G4 is available in a small outline package (SOP) with 8 pins.

Essence

The essence of UCC3813DTR-3G4 lies in its ability to efficiently regulate and control power in various electronic devices.

Packaging/Quantity

This IC is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 2.7V to 18V
• Output Voltage Range: 0.8V to 16V
• Output Current: Up to 500mA
• Switching Frequency: 100kHz to 1MHz
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

UCC3813DTR-3G4 features the following pin configuration:

```

---

| | --| VCC GND |-- Pin 1: Power Supply --| FB COMP|-- Pin 2: Feedback/Input Compensation --| CS SS |-- Pin 3: Current Sense/Soft Start --| RT OUT |-- Pin 4: Oscillator Timing Resistor/Output --| CT INV |-- Pin 5: Oscillator Timing Capacitor/Inverting Input --| EN NC |-- Pin 6: Enable/No Connection --| PGND UV |-- Pin 7: Power Ground/Undervoltage Lockout |___________| ```

Functional Features

• Voltage mode control
• Adjustable output voltage
• Overcurrent protection
• Undervoltage lockout
• Soft start functionality
• Error amplifier for precise regulation

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption
• Wide input voltage range allows for versatile applications
• Compact size enables integration into space-constrained designs
• Precise regulation ensures stable and reliable power delivery

Disadvantages

• Limited output current capacity (up to 500mA)
• Requires external components for complete power management solution

Working Principles

UCC3813DTR-3G4 operates based on the voltage mode control technique. It compares the feedback voltage with a reference voltage to generate an error signal. This error signal is then amplified and used to adjust the duty cycle of the internal PWM (Pulse Width Modulation) controller. By modulating the duty cycle, the IC regulates the output voltage according to the desired setpoint.

The IC also incorporates features like overcurrent protection and undervoltage lockout to ensure safe operation and protect the connected devices.

Detailed Application Field Plans

UCC3813DTR-3G4 finds extensive application in various fields, including but not limited to: - Power supplies for consumer electronics - Battery-powered devices - Industrial automation systems - LED lighting - Telecommunications equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to UCC3813DTR-3G4 are: - LM2576-ADJ - LT1073-5 - TPS5430

These alternatives can be considered based on specific requirements and design constraints.

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