UCC3912PWP - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: The UCC3912PWP is a high-performance power management IC designed for use in various electronic devices. It provides efficient power management and control capabilities, making it suitable for applications requiring precise voltage regulation.

Characteristics: - High efficiency - Precise voltage regulation - Compact size - Low power consumption

Package: The UCC3912PWP is available in a small outline package (SOP) with 20 pins. This package ensures easy integration into electronic circuits and facilitates space-saving designs.

Essence: The UCC3912PWP is an essential component in power management systems, enabling reliable and efficient operation of electronic devices.

Packaging/Quantity: The UCC3912PWP is typically sold in reels or tubes containing multiple units, depending on the supplier. The exact quantity may vary, but it is commonly available in quantities suitable for both prototyping and mass production.

Specifications

The UCC3912PWP features the following specifications:

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 0.8V to 37V
• Maximum Output Current: 1A
• Operating Temperature Range: -40°C to 125°C
• Switching Frequency: Up to 500kHz
• Quiescent Current: 100µA (typical)

Detailed Pin Configuration

The UCC3912PWP has a total of 20 pins, each serving a specific function. The pin configuration is as follows:

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. VREF: Reference voltage output pin
4. FB: Feedback input pin
5. COMP: Compensation pin
6. SS/TR: Soft-start/Tracking pin
7. EN: Enable pin
8. VCC: Power supply input pin
9. PGND: Power ground pin
10. AGND: Analog ground pin
11. BOOT: Bootstrap pin
12. LX: Switching node pin
13. SS/TR: Soft-start/Tracking pin
14. COMP: Compensation pin
15. FB: Feedback input pin
16. VREF: Reference voltage output pin
17. GND: Ground reference pin
18. VIN: Input voltage pin
19. NC: No connection pin
20. VCC: Power supply input pin

Functional Features

The UCC3912PWP offers several functional features that enhance its performance and usability:

1. Wide Input Voltage Range: The IC can operate within a wide range of input voltages, making it suitable for various power supply applications.
2. Precise Voltage Regulation: The UCC3912PWP provides accurate voltage regulation, ensuring stable and reliable power delivery to connected devices.
3. Efficient Power Management: With its high efficiency and low quiescent current, the IC minimizes power losses and maximizes energy efficiency.
4. Protection Mechanisms: The UCC3912PWP incorporates built-in protection features such as overvoltage protection (OVP), undervoltage lockout (UVLO), and thermal shutdown, safeguarding both the IC and the connected devices.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile application scenarios. - Precise voltage regulation ensures stable power supply to connected devices. - Efficient power management reduces energy consumption and heat generation. - Integrated protection mechanisms enhance system reliability.

Disadvantages: - Limited maximum output current may restrict usage in high-power applications. - Complex pin configuration requires careful attention during circuit design and layout.

Working Principles

The UCC3912PWP operates based on a switching regulator topology. It utilizes pulse-width modulation (PWM) techniques to regulate the output voltage. The IC continuously monitors the input and output voltages, adjusting the duty cycle of the internal switch to maintain the desired output voltage level.

By controlling the switching frequency and duty cycle, the UCC3912PWP achieves efficient power conversion while minimizing losses. The integrated control circuitry ensures stable operation under varying load conditions and provides protection against fault conditions.

Detailed Application Field Plans

The UCC3912PWP finds applications in various fields, including but not limited to:

1. Power Supplies: The IC can be used in AC-DC converters, DC-DC converters, and other power supply systems to regulate voltage levels and improve overall efficiency.
2. Battery Charging: The UCC3912PWP is suitable for battery charging circuits, ensuring precise control over charging voltage and current.
3. LED Lighting: With its efficient power management capabilities, the IC can be employed in LED lighting systems, enabling reliable and energy-efficient illumination.
4. Industrial Automation: The UCC391