Overview
The UCC28061DG4, manufactured by Texas Instruments, is a Natural Interleaving™ Transition-Mode Power Factor Correction (PFC) Controller designed to enhance audible noise immunity and optimize system performance in power conversion applications. This controller is particularly suited for systems requiring high efficiency, low noise, and robust reliability. It is widely used in power supplies for consumer electronics, industrial equipment, and other applications where power factor correction is critical.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 85 - 265 | VAC | |
| Output Voltage | 400 | VDC | |
| Maximum Power Handling | 600 | W | |
| Operating Frequency | 0.5 | MHz | Maximum |
| UVLO Thresholds | 12.6/10.4 | V | On/Off |
| Operating Temperature Range | -40 to 125 | °C |
Key Features
- Natural Interleaving™ Technology: Reduces capacitor ripple current, improving system reliability and reducing the size of bulk capacitors.
- Enhanced Audible Noise Immunity: Minimizes noise during operation, ensuring better audio quality in sensitive applications.
- Overvoltage Soft Start: Protects the system from damage during overvoltage conditions.
- FailSafe Overvoltage Protection: Dual-path protection ensures safety even if voltage sensing fails.
- Sensorless Current Shaping: Simplifies PCB layout and enhances efficiency.
Applications
The UCC28061DG4 is ideal for a variety of applications, including:
- Power supplies for consumer electronics such as LCD, plasma, and DLP TVs.
- Audio systems and gaming consoles.
- Industrial power systems requiring high efficiency and reliability.
- AC-DC adapters and power factor correction modules.
Q & A
1. What is the primary function of the UCC28061DG4?
The UCC28061DG4 is a PFC controller designed to improve power factor correction in power conversion systems, enhancing efficiency and reducing audible noise.
2. What is Natural Interleaving™ Technology?
It is a technique that synchronizes multiple phases in a power system to reduce capacitor ripple current, improving reliability and reducing the need for large capacitors.
3. What is the input voltage range of the UCC28061DG4?
The input voltage range is 85VAC to 265VAC.
4. What are the key protections offered by this controller?
It includes overvoltage protection, soft start, and FailSafe overvoltage protection to ensure system safety.
5. Can the UCC28061DG4 operate in high-temperature environments?
Yes, it operates within a temperature range of -40°C to 125°C.
6. What is the maximum power handling capacity of the UCC28061DG4?
It can handle up to 600W of power.
7. How does the UCC28061DG4 improve efficiency?
It uses sensorless current shaping and Natural Interleaving™ Technology to optimize power distribution and reduce losses.
8. What are typical applications for the UCC28061DG4?
It is used in consumer electronics, industrial power systems, and AC-DC adapters.
9. Does the UCC28061DG4 support single-phase and dual-phase operation?
Yes, it supports both single-phase and dual-phase operation for flexible power management.
10. What is the significance of the FailSafe Overvoltage Protection feature?
It ensures protection against overvoltage conditions even if the voltage sensing mechanism fails, enhancing system reliability.
