UCC3809DTR-1G4

Product Overview

Category

UCC3809DTR-1G4 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
• Adjustable output voltage
• Overcurrent protection

Package

UCC3809DTR-1G4 is available in a small outline package (SOP) with 8 pins.

Essence

The essence of UCC3809DTR-1G4 lies in its ability to efficiently regulate and control power in various electronic devices.

Packaging/Quantity

This IC is typically sold in reels, with each reel containing a specific quantity of UCC3809DTR-1G4 units. The exact quantity may vary depending on the supplier.

Specifications

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

Detailed Pin Configuration

UCC3809DTR-1G4 features the following pin configuration:

1. VREF: Reference voltage input
2. COMP: Error amplifier output
3. CS: Current sense input
4. GND: Ground connection
5. RT/CT: Timing resistor/capacitor connection
6. OUT: Power supply output
7. FB: Feedback input
8. VIN: Input voltage

Functional Features

• Current mode control for improved stability and transient response
• Soft-start function to prevent excessive inrush current
• Overcurrent protection to safeguard the circuit and connected devices
• Adjustable frequency for optimal performance in different applications
• Error amplifier with high gain and low offset voltage for accurate regulation

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption
• Wide input voltage range allows compatibility with various power sources
• Compact size enables integration into space-constrained designs
• Overcurrent protection enhances system reliability
• Adjustable output voltage provides flexibility in different applications

Disadvantages

• Limited maximum output current may not be suitable for high-power applications
• Operating temperature range may restrict usage in extreme environments

Working Principles

UCC3809DTR-1G4 operates based on the current mode control principle. It continuously monitors the current flowing through the power supply and adjusts the duty cycle of the switching signal to regulate the output voltage. By maintaining a stable feedback loop, it ensures efficient power transfer and protects against potential faults.

Detailed Application Field Plans

UCC3809DTR-1G4 finds application in various fields, including but not limited to: - Power supplies for consumer electronics - Battery charging circuits - LED lighting systems - Industrial automation equipment - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to UCC3809DTR-1G4 are: - LM2576-ADJ - LT1073-5 - MC34063A - TPS5430

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

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