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UCC28631DR
Overview
Category: Integrated Circuit (IC)
Use: Power Management IC
Characteristics: - High efficiency - Low standby power consumption - Wide input voltage range - Advanced protection features
Package: SOIC-8
Essence: UCC28631DR is a power management IC designed for efficient power conversion in various applications.
Packaging/Quantity: UCC28631DR is available in a standard SOIC-8 package. It is typically sold in reels of 2500 units.
Specifications
- Input Voltage Range: 4.5V to 30V
- Output Voltage Range: 0.8V to 24V
- Maximum Output Current: 3A
- Switching Frequency: 100kHz to 1MHz
- Operating Temperature Range: -40°C to +125°C
Pin Configuration
UCC28631DR has the following pin configuration:
```
| | --| VIN GND|-- Pin 1: Ground --| VCC COMP|-- Pin 2: Compensation --| FB CS |-- Pin 3: Current Sense --| EN RT |-- Pin 4: Soft Start / External Resistor --| SS DLY|-- Pin 5: Soft Start / Delay --| VREF SYNC|-- Pin 6: Reference Voltage / Synchronization --| VOUT SW |-- Pin 7: Output Voltage / Switch --| NC NC |-- Pin 8: No Connection |___________| ```
Functional Features
- Constant voltage (CV) and constant current (CC) regulation modes
- Adaptive feedback compensation for stable operation
- Overvoltage, undervoltage, overcurrent, and overtemperature protection
- Soft start and soft stop functionality
- Synchronization capability for multi-phase operation
Advantages and Disadvantages
Advantages: - High efficiency power conversion - Wide input voltage range allows for versatile applications - Advanced protection features ensure safe operation - Compact SOIC-8 package for space-constrained designs
Disadvantages: - Limited maximum output current of 3A - Requires external components for complete power management solution
Working Principles
UCC28631DR operates as a pulse width modulation (PWM) controller, regulating the output voltage by adjusting the duty cycle of the switching transistor. It utilizes a feedback loop to maintain a constant output voltage or current, depending on the selected regulation mode. The IC incorporates various protection mechanisms to safeguard against abnormal operating conditions.
Application Field Plans
UCC28631DR is suitable for a wide range of power management applications, including but not limited to: - AC/DC power supplies - LED lighting systems - Battery chargers - Industrial equipment - Consumer electronics
Alternative Models
Some alternative models that can be considered as alternatives to UCC28631DR are: - UCC28630DR - UCC28632DR - UCC28633DR - UCC28634DR
These models offer similar functionality and characteristics, providing flexibility in design choices.
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Καταγράψτε 10 συνήθεις ερωτήσεις και απαντήσεις που σχετίζονται με την εφαρμογή του UCC28631DR σε τεχνικές λύσεις
Sure! Here are 10 common questions and answers related to the application of UCC28631DR in technical solutions:
Q: What is UCC28631DR? A: UCC28631DR is a high-performance, active power factor correction (PFC) controller designed for AC/DC power supplies.
Q: What is the input voltage range supported by UCC28631DR? A: UCC28631DR supports an input voltage range from 85VAC to 265VAC.
Q: What is the output power range that UCC28631DR can handle? A: UCC28631DR can handle output power ranging from a few watts up to several hundred watts.
Q: Can UCC28631DR operate in continuous conduction mode (CCM)? A: Yes, UCC28631DR can operate in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM).
Q: Does UCC28631DR have built-in protection features? A: Yes, UCC28631DR includes various protection features such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.
Q: What is the typical efficiency of UCC28631DR? A: The typical efficiency of UCC28631DR is around 95%, making it highly efficient in power conversion applications.
Q: Can UCC28631DR be used in both isolated and non-isolated power supply designs? A: Yes, UCC28631DR can be used in both isolated and non-isolated power supply designs, providing flexibility in various applications.
Q: Is UCC28631DR compatible with wide-bandgap semiconductors like SiC and GaN? A: Yes, UCC28631DR is compatible with wide-bandgap semiconductors, enabling designers to take advantage of their benefits in power supply designs.
Q: Does UCC28631DR support power factor correction (PFC)? A: Yes, UCC28631DR is specifically designed for power factor correction (PFC) applications, ensuring compliance with power quality standards.
Q: Are there any reference designs or application notes available for UCC28631DR? A: Yes, Texas Instruments provides reference designs and application notes that can help designers implement UCC28631DR effectively in their solutions.
Please note that the answers provided here are general and may vary depending on specific design requirements and application scenarios. It is always recommended to refer to the datasheet and relevant documentation for accurate information.