UCC3809D-1G4

Product Overview

Category

UCC3809D-1G4 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power management applications.

Characteristics

• High efficiency
• Low standby power consumption
• Wide input voltage range
• Overvoltage and undervoltage protection
• Adjustable output voltage

Package

UCC3809D-1G4 is available in a small outline package (SOP) with 8 pins.

Essence

The essence of UCC3809D-1G4 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
• Maximum Output Current: 500mA
• Operating Temperature Range: -40°C to +85°C
• Switching Frequency: 100kHz to 1MHz

Detailed Pin Configuration

1. VDD: Power supply input
2. GND: Ground reference
3. FB: Feedback pin for output voltage regulation
4. COMP: Compensation pin for stability control
5. CS: Current sense pin for current limit protection
6. RT/CT: Timing components connection pins
7. OUT: Regulated output voltage
8. EN: Enable pin for turning on/off the IC

Functional Features

• Voltage mode control for stable regulation
• Soft-start function for smooth startup
• Overcurrent protection for safe operation
• Error amplifier for precise voltage regulation
• External synchronization capability
• Power-saving mode during light load conditions

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption
• Wide input voltage range allows for versatile applications
• Overvoltage and undervoltage protection ensure device safety
• Adjustable output voltage provides flexibility in design

Disadvantages

• Limited maximum output current may restrict certain high-power applications
• Requires external timing components for operation
• Sensitive to noise and requires proper filtering

Working Principles

UCC3809D-1G4 operates on the principle of voltage mode control. It compares the feedback voltage with a reference voltage to regulate the output voltage. The error amplifier amplifies the difference between these voltages and adjusts the duty cycle of the internal oscillator. This controls the switching frequency and duty cycle of the power switch, resulting in a regulated output voltage.

Detailed Application Field Plans

UCC3809D-1G4 finds extensive use in various power management applications, including but not limited to: - Switching power supplies - Battery chargers - LED drivers - Industrial automation systems - Consumer electronics

Detailed and Complete Alternative Models

1. UCC3809D-1: Similar to UCC3809D-1G4, but without the G4 suffix.
2. UCC3809D-2: Variant with different specifications and pin configuration.
3. UCC3809D-3: Another variant with specific features for specialized applications.

These alternative models provide options based on specific requirements and can be considered as alternatives to UCC3809D-1G4.

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