UCC28512DWRG4 - English Editing Encyclopedia Entry
Product Overview
Category
UCC28512DWRG4 belongs to the category of integrated circuits (ICs).
Use
This product is commonly used in power management applications.
Characteristics
- UCC28512DWRG4 is a high-performance, synchronous rectifier controller.
- It offers excellent efficiency and reliability in power conversion systems.
- The device operates at a wide input voltage range, making it suitable for various applications.
- It provides advanced protection features to ensure safe operation.
Package
UCC28512DWRG4 is available in a standard surface-mount package (DWR) with 16 pins.
Essence
The essence of UCC28512DWRG4 lies in its ability to efficiently control synchronous rectification in power management systems.
Packaging/Quantity
This product is typically sold in reels containing a specific quantity, such as 2500 units per reel.
Specifications
- Input Voltage Range: 4.5V to 28V
- Output Voltage Range: 0V to 28V
- Operating Temperature Range: -40°C to 125°C
- Switching Frequency: Up to 1MHz
- Control Method: Current Mode Control
- Protection Features: Overvoltage Protection, Undervoltage Lockout, Overcurrent Protection
Detailed Pin Configuration
- VIN: Input voltage pin
- GND: Ground pin
- FB: Feedback pin for voltage regulation
- COMP: Compensation pin for stability control
- CS: Current sense pin for current regulation
- SS/TR: Soft-start/Tracking pin for startup control
- SYNC: Synchronization pin for external clock synchronization
- VREF: Reference voltage output pin
- VCC: Supply voltage pin
- DRVH: High-side gate driver output pin
- DRVL: Low-side gate driver output pin
- PGND: Power ground pin
- BST: Bootstrap capacitor connection pin
- SS/TR: Soft-start/Tracking pin for startup control
- EN: Enable pin for device activation
- VSENSE: Voltage sense pin for voltage regulation
Functional Features
- Current mode control for stable and efficient operation.
- Synchronous rectification control for improved power conversion efficiency.
- Adaptive dead-time control to minimize switching losses.
- Programmable soft-start and tracking functions for controlled startup.
- External clock synchronization capability for system integration.
Advantages and Disadvantages
Advantages
- High-performance synchronous rectifier controller.
- Wide input voltage range for versatile applications.
- Excellent efficiency and reliability.
- Advanced protection features ensure safe operation.
Disadvantages
- Limited availability in certain regions.
- Relatively higher cost compared to some alternatives.
Working Principles
UCC28512DWRG4 operates based on the current mode control principle. It regulates the power conversion process by monitoring the current flowing through the system and adjusting the switching frequency accordingly. The synchronous rectification feature improves overall efficiency by reducing power losses during the rectification process. The device also incorporates various protection mechanisms to safeguard against overvoltage, undervoltage, and overcurrent conditions.
Detailed Application Field Plans
UCC28512DWRG4 finds extensive use in various power management applications, including but not limited to: - DC-DC converters - AC-DC converters - Power supplies - Battery charging systems - LED lighting systems
Detailed and Complete Alternative Models
- UCC28512DW: Similar specifications and features, but available in a different package (SOIC).
- UCC28512EVM-001: Evaluation module for testing and prototyping purposes.
- UCC28512DWR: Similar specifications and features, but available in a different package (SOIC).
These alternative models provide similar functionality and can be considered as substitutes for UCC28512DWRG4 depending on specific requirements.
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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af UCC28512DWRG4 i tekniske løsninger
Sure! Here are 10 common questions and answers related to the application of UCC28512DWRG4 in technical solutions:
Q: What is UCC28512DWRG4? A: UCC28512DWRG4 is a high-performance, active power factor correction (PFC) controller designed for AC-DC power supplies.
Q: What is the input voltage range of UCC28512DWRG4? A: The input voltage range of UCC28512DWRG4 is typically from 85VAC to 265VAC.
Q: What is the output power range supported by UCC28512DWRG4? A: UCC28512DWRG4 can support output power ranges from a few watts up to several hundred watts.
Q: Can UCC28512DWRG4 be used in both single-phase and three-phase applications? A: Yes, UCC28512DWRG4 can be used in both single-phase and three-phase applications.
Q: What is the maximum switching frequency of UCC28512DWRG4? A: The maximum switching frequency of UCC28512DWRG4 is typically around 500kHz.
Q: Does UCC28512DWRG4 have built-in protection features? A: Yes, UCC28512DWRG4 has various built-in protection features such as overvoltage protection, overcurrent protection, and thermal shutdown.
Q: Can UCC28512DWRG4 operate in continuous conduction mode (CCM)? A: Yes, UCC28512DWRG4 can operate in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM).
Q: What is the typical efficiency of UCC28512DWRG4? A: The typical efficiency of UCC28512DWRG4 can exceed 95% when properly designed.
Q: Does UCC28512DWRG4 support power factor correction (PFC)? A: Yes, UCC28512DWRG4 is specifically designed for power factor correction (PFC) applications.
Q: Are there any evaluation boards or reference designs available for UCC28512DWRG4? A: Yes, Texas Instruments provides evaluation boards and reference designs to help users quickly prototype and implement solutions using UCC28512DWRG4.
Please note that the answers provided here are general and may vary depending on specific application requirements and design considerations. It is always recommended to refer to the datasheet and application notes for detailed information.