UCC3808N-1G4

Product Overview

Category

UCC3808N-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 soft-start function
• Protection features such as overcurrent and overvoltage protection

Package

UCC3808N-1G4 is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of UCC3808N-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 quantities varying depending on the supplier.

Specifications

• Input Voltage Range: 3V to 25V
• Output Voltage Range: 0.8V to VCC
• Maximum Duty Cycle: 100%
• Operating Temperature Range: -40°C to 85°C
• Package Type: SOIC-8

Detailed Pin Configuration

1. COMP: Compensation pin
2. CS: Current sense input
3. GND: Ground reference
4. RT/CT: Timing components connection
5. VREF: Reference voltage output
6. VCC: Power supply input
7. OUT: PWM output
8. SS/TR: Soft-start and shutdown control

Functional Features

• Current mode control for improved stability and transient response
• Adjustable frequency and maximum duty cycle for flexible power regulation
• Integrated soft-start function to prevent excessive inrush current
• Overcurrent protection to safeguard against load faults
• Overvoltage protection to prevent damage to connected devices

Advantages and Disadvantages

Advantages

• Efficient power management
• Wide input voltage range
• Adjustable frequency and duty cycle for flexibility
• Integrated protection features

Disadvantages

• Limited output voltage range
• Requires external timing components for operation

Working Principles

UCC3808N-1G4 operates on the principle of current mode control, where the current flowing through the power switch is monitored and regulated to achieve stable power delivery. It utilizes a feedback loop to adjust the duty cycle of the PWM signal, ensuring accurate voltage regulation.

Detailed Application Field Plans

UCC3808N-1G4 finds applications in various fields, including: 1. Switching power supplies 2. Battery chargers 3. LED lighting systems 4. Motor control circuits 5. DC-DC converters

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to UCC3808N-1G4 are: 1. LM2576-ADJ 2. LT1073 3. MC34063A 4. UC3843 5. TPS5430

These models offer similar functionality and can be used as substitutes depending on specific requirements.

In conclusion, UCC3808N-1G4 is a low-power current mode PWM controller IC used in power management applications. It offers adjustable frequency, maximum duty cycle, and integrated protection features. With its wide input voltage range and compact package, it finds applications in various fields such as switching power supplies, battery chargers, and motor control circuits.