UCC3808DTR-1G4

Product Overview

Category

UCC3808DTR-1G4 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power management applications.

Characteristics

• Low-power current mode PWM controller
• Wide input voltage range
• Adjustable frequency and maximum duty cycle
• Integrated oscillator with programmable soft-start
• Overcurrent protection
• Undervoltage lockout
• Error amplifier with precision reference

Package

UCC3808DTR-1G4 is available in a small outline package (SOT-23) which allows for easy integration into various electronic devices.

Essence

The essence of UCC3808DTR-1G4 lies in its ability to efficiently regulate power in a wide range of applications, ensuring stable and reliable performance.

Packaging/Quantity

This IC is typically packaged in reels containing 3000 units.

Specifications

• Input Voltage Range: 4.2V to 12V
• Output Voltage Range: 0.8V to VCC
• Maximum Duty Cycle: 100%
• Operating Temperature Range: -40°C to 85°C
• Package Type: SOT-23
• RoHS Compliant: Yes

Pin Configuration

UCC3808DTR-1G4 features a total of 5 pins:

1. COMP: Compensation pin for error amplifier feedback.
2. CS: Current sense pin for overcurrent protection.
3. GND: Ground reference pin.
4. VCC: Power supply input pin.
5. OUT: Regulated output voltage pin.

Functional Features

• Low-Power Current Mode PWM Control: Enables efficient power regulation while minimizing power consumption.
• Wide Input Voltage Range: Allows for versatile use in different power supply systems.
• Adjustable Frequency and Maximum Duty Cycle: Provides flexibility in designing power management circuits.
• Integrated Oscillator with Programmable Soft-Start: Simplifies circuit design and ensures smooth startup.
• Overcurrent Protection: Safeguards the system by detecting and responding to excessive current flow.
• Undervoltage Lockout: Prevents operation when the input voltage falls below a specified threshold.
• Error Amplifier with Precision Reference: Ensures accurate regulation of the output voltage.

Advantages and Disadvantages

Advantages

• Efficient power management
• Wide input voltage range for versatile applications
• Adjustable frequency and duty cycle for flexible design
• Integrated protection features enhance system reliability
• Compact SOT-23 package for easy integration

Disadvantages

• Limited maximum output voltage range
• Requires external components for complete power management solution

Working Principles

UCC3808DTR-1G4 operates based on the principle of current mode pulse-width modulation (PWM) control. It compares the feedback voltage from the error amplifier with a reference voltage to regulate the duty cycle of the PWM signal. By adjusting the duty cycle, the IC controls the output voltage and maintains it within the desired range.

Detailed Application Field Plans

UCC3808DTR-1G4 finds extensive application in various fields, including but not limited to: - Power supplies for consumer electronics - Battery charging systems - LED lighting drivers - Industrial automation equipment - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to UCC3808DTR-1G4 are: - LM2576-ADJ - LT1073 - MC34063A - TPS5430

These alternatives can be considered based on specific requirements and compatibility with the target application.

In conclusion, UCC3808DTR-1G4 is a low-power current mode PWM controller IC that offers efficient power management, wide input voltage range, and integrated protection features. Its compact package and versatile applications make it a popular choice in various industries.