UCC3813N-4G4

Product Overview

Category

UCC3813N-4G4 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power management applications.

Characteristics

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

Package

UCC3813N-4G4 is available in a 14-pin plastic dual in-line package (PDIP).

Essence

The essence of UCC3813N-4G4 lies in its ability to efficiently regulate and control power in various electronic devices.

Packaging/Quantity

This IC is typically packaged in reels, with each reel containing 2500 units.

Specifications

• Input Voltage Range: 2.7V to 18V
• Output Voltage Range: 1.25V to 16V
• Output Current: Up to 500mA
• Operating Temperature Range: -40°C to +85°C
• Switching Frequency: 100kHz to 1MHz

Detailed Pin Configuration

1. VREF: Reference voltage input
2. COMP: Error amplifier output
3. FB: Feedback pin for output voltage regulation
4. GND: Ground connection
5. RT/CT: Timing resistor/capacitor connection
6. CT: Timing capacitor connection
7. RT: Timing resistor connection
8. VCC: Supply voltage input
9. SYNC: Synchronization input
10. SS/TR: Soft-start/Shutdown control
11. OSC: Oscillator timing capacitor connection
12. OSC: Oscillator timing resistor connection
13. OUT: Power switch output
14. IN: Power supply input

Functional Features

• Voltage mode PWM control
• Adjustable soft-start time
• Overcurrent protection with hiccup mode
• Synchronization capability for multiple ICs
• Error amplifier with high gain and bandwidth

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power dissipation
• Wide input voltage range allows for versatile applications
• Adjustable output voltage provides flexibility
• Overcurrent protection ensures safe operation
• Synchronization capability enables parallel operation of multiple ICs

Disadvantages

• Limited output current may not be suitable for high-power applications
• Requires external components for proper operation
• Relatively complex pin configuration may require careful layout design

Working Principles

UCC3813N-4G4 operates on the principle of voltage mode pulse-width modulation (PWM) control. It compares the feedback voltage with a reference voltage to generate an error signal, which is then amplified and used to control the duty cycle of the power switch. By adjusting the duty cycle, the output voltage can be regulated according to the desired value.

Detailed Application Field Plans

UCC3813N-4G4 finds extensive use in various power management applications, including but not limited to: - DC-DC converters - Battery chargers - LED drivers - Power supplies for consumer electronics - Industrial automation systems

Detailed and Complete Alternative Models

1. UCC3813N-5G4: Similar to UCC3813N-4G4, but with a different output voltage range.
2. UCC3813N-3G4: Similar to UCC3813N-4G4, but with a different output voltage range and additional features.
3. UCC3813N-4G3: Similar to UCC3813N-4G4, but with a different package type.

These alternative models provide similar functionality and can be considered as substitutes for UCC3813N-4G4 depending on specific requirements.

In conclusion, UCC3813N-4G4 is a versatile integrated circuit used for power management applications. Its high efficiency, adjustable output voltage, and overcurrent protection make it suitable for various electronic devices. However, its limited output current and external component requirements should be taken into consideration. The IC operates on voltage mode PWM control and finds application in DC-DC converters, battery chargers, LED drivers, and more. Alternative models such as UCC3813N-5G4, UCC3813N-3G4, and UCC3813N-4G3 offer similar functionality and can be considered as alternatives to UCC3813N-4G4.