UCC3813DTR-2

Product Overview

Category

UCC3813DTR-2 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power management applications.

Characteristics

• Low-power consumption
• High efficiency
• Wide input voltage range
• Adjustable output voltage
• Overcurrent protection

Package

UCC3813DTR-2 is available in a small outline package (SOP) with 8 pins.

Essence

The essence of UCC3813DTR-2 lies in its ability to regulate and control power in various electronic devices efficiently.

Packaging/Quantity

UCC3813DTR-2 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: 1.25V to 37V
• Output Current: Up to 500mA
• Operating Temperature Range: -40°C to 125°C
• Switching Frequency: Up to 500kHz

Detailed Pin Configuration

1. VFB: Feedback pin for output voltage regulation.
2. COMP: Compensation pin for stability control.
3. CS: Current sense pin for overcurrent protection.
4. GND: Ground reference pin.
5. VIN: Input voltage pin.
6. VCC: Power supply pin for internal circuitry.
7. RT/CT: Timing components connection pins.
8. VOUT: Output voltage pin.

Functional Features

• Voltage regulation: UCC3813DTR-2 provides precise output voltage regulation, ensuring stable power supply to connected devices.
• Overcurrent protection: The IC incorporates current sensing and protection mechanisms to prevent damage due to excessive current flow.
• Efficiency optimization: With its low-power consumption and high efficiency, UCC3813DTR-2 helps optimize power management in various applications.
• Wide input voltage range: The IC can handle a wide range of input voltages, making it suitable for diverse electronic systems.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power wastage.
• Wide input voltage range allows for versatile application.
• Overcurrent protection ensures device safety.
• Compact SOP package enables space-saving designs.

Disadvantages

• Limited output current capacity compared to higher-power ICs.
• Requires external timing components for operation.

Working Principles

UCC3813DTR-2 operates as a voltage mode PWM (Pulse Width Modulation) controller. It compares the feedback voltage (VFB) with a reference voltage to generate an error signal. This error signal is then used to control the duty cycle of the internal oscillator, which regulates the output voltage. By adjusting the duty cycle, the IC maintains the desired output voltage within the specified range.

Detailed Application Field Plans

UCC3813DTR-2 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

1. UCC3813DTR-1: Similar to UCC3813DTR-2 but with a different output voltage range.
2. UCC3813DTR-3: Another variant with additional features such as adjustable soft-start and shutdown functions.
3. UCC3813DTR-4: Higher-output current version suitable for more demanding applications.

These alternative models offer similar functionality but may have variations in specifications or additional features to cater to specific requirements.

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