UCC3808APWTR-2G4

Product Overview

Category

UCC3808APWTR-2G4 belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for controlling and regulating power in various electronic devices and systems. It is commonly employed in applications such as switch-mode power supplies, battery chargers, and motor control circuits.

Characteristics

• UCC3808APWTR-2G4 is a high-performance voltage mode PWM controller.
• It operates with a wide input voltage range, making it suitable for diverse power supply designs.
• The device offers excellent precision and stability in regulating output voltages.
• It features built-in protection mechanisms against overvoltage, undervoltage, and overcurrent conditions.
• UCC3808APWTR-2G4 exhibits low power consumption, enhancing energy efficiency in power management systems.

Package

The UCC3808APWTR-2G4 is available in a small-sized surface mount package known as TSSOP-14 (Thin Shrink Small Outline Package). This package ensures easy integration into compact circuit designs.

Essence

The essence of UCC3808APWTR-2G4 lies in its ability to provide reliable and efficient power management solutions by accurately controlling the flow of electrical energy.

Packaging/Quantity

The UCC3808APWTR-2G4 is typically supplied in reels or tape and reel packaging. Each reel contains a specified quantity of ICs, usually around 2500 units.

Specifications

• Input Voltage Range: 3V to 25V
• Output Voltage Range: 0V to Vcc
• Operating Temperature Range: -40°C to 125°C
• Maximum Duty Cycle: 100%
• Oscillator Frequency Range: 50kHz to 1MHz
• Output Current: Up to 500mA

Detailed Pin Configuration

The UCC3808APWTR-2G4 IC has a total of 14 pins. The pin configuration is as follows:

1. VREF - Reference Voltage Input
2. COMP - Error Amplifier Output
3. FB - Feedback Input
4. CS - Current Sense Input
5. GND - Ground
6. RT/CT - Oscillator Timing Components
7. SS/TR - Soft Start/Shutdown Control
8. VCC - Supply Voltage Input
9. OUT - PWM Output
10. SYNC - Synchronization Input
11. NC - No Connection
12. NC - No Connection
13. NC - No Connection
14. NC - No Connection

Functional Features

• Voltage Mode PWM Control: UCC3808APWTR-2G4 utilizes voltage mode control technique to regulate the output voltage accurately.
• Error Amplifier: The built-in error amplifier ensures precise comparison between the feedback voltage and reference voltage, enabling accurate regulation.
• Soft Start and Shutdown Control: The soft start feature allows gradual ramp-up of the output voltage during startup, preventing excessive inrush current. The shutdown control facilitates safe power-off operation.
• Current Sensing: The current sense input enables monitoring and control of the output current, ensuring protection against overcurrent conditions.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows versatile application possibilities.
• Excellent precision and stability in regulating output voltages ensure reliable performance.
• Built-in protection mechanisms safeguard against various fault conditions.
• Low power consumption enhances energy efficiency.
• Compact package size enables easy integration into space-constrained designs.

Disadvantages

• Limited maximum output current may restrict usage in high-power applications.
• Requires external timing components for oscillator frequency adjustment.

Working Principles

UCC3808APWTR-2G4 operates based on the voltage mode control technique. It compares the feedback voltage from the output with a reference voltage and generates a PWM signal to regulate the power flow. The error amplifier ensures accurate comparison, while the soft start and shutdown control features provide smooth startup and safe shutdown operations. The current sense input allows monitoring and protection against overcurrent conditions.

Detailed Application Field Plans

The UCC3808APWTR-2G4 finds extensive application in various power management systems, including:

1. Switch-mode power supplies (SMPS) for computers, telecommunication equipment, and industrial machinery.
2. Battery chargers for portable electronic devices, electric vehicles, and renewable energy systems.
3. Motor control circuits for robotics, automation, and electric vehicle propulsion systems.
4. LED lighting drivers for residential, commercial, and automotive applications.
5. Audio amplifiers and audio processing systems.

Detailed and Complete Alternative Models

1. UCC3808ADTR-2G4: Similar to UCC3808APWTR-2G4 but available in SOIC-14