Overview
The UCC28063ADR, produced by Texas Instruments, is a Natural Interleaving™ transition-mode Power Factor Correction (PFC) controller. This device is designed to optimize power supplies for consumer applications, particularly focusing on reducing audible noise and improving system reliability. It operates in transition mode, which offers high efficiency with the use of low-cost components, making it suitable for higher power ratings. The UCC28063ADR features advanced protections and improved efficiency, making it a robust solution for various power supply applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Temperature Range | -40 | - | 125 | °C |
| VCC Turn-On Threshold | 11.5 | 12.6 | 13.5 | V |
| VCC Turn-Off Threshold | 9.5 | 10.35 | 11.5 | V |
| UVLO Hysteresis | 1.85 | 2.15 | 2.45 | V |
| Gate Drive Output Current | 1 A (Source), 1.8 A (Sink) | - | - | A |
| Switching Frequency Range | 45 kHz | - | 550 kHz | kHz |
| Package Type | - | - | SOIC-16 | - |
| Operating Voltage Range | 10.35 V | - | 21 V | V DC |
Key Features
- Input Filter and Output Capacitor Ripple-Current Cancellation: Reduces current ripple for higher system reliability and smaller bulk capacitors.
- Phase Management Capability: Enables natural interleaving of two phases, ensuring strong matching and faster responses.
- Fail-Safe OVP with Dual Paths: Prevents output overvoltage conditions by voltage-sensing failures.
- Sensorless Current-Shaping: Simplifies board layout and improves efficiency.
- Advanced Audible Noise Performance: Optimized for consumer applications to eliminate audible noise.
- Non-linear Error-Amplifier Gain: Provides rapid and smooth response to line and load transient events.
- Soft Recovery on Overvoltage: Ensures smooth recovery from overvoltage conditions.
- Integrated Brownout and Dropout Handling: Prevents significant current disruption and minimizes audible noise generation.
- Inrush-Safe Current Limiting: Prevents MOSFET conduction during inrush and eliminates reverse recovery events in output rectifiers.
- Improved Light-Load Efficiency: Enhances efficiency during light-load conditions.
- Fast and Smooth Transient Response: Ensures stable operation during transient events.
- Expanded System-Level Protections: Includes input brownout, dropout recovery, output over-voltage, open-loop, overload, soft-start, phase-fail detection, and thermal shutdown.
Applications
- 100-W to 800-W Power Supplies
- Gaming Systems
- D-to-A Set-Top Boxes
- Adapters
- LCD, Plasma, and DLP™ TVs
- Home Audio Systems
Q & A
- What is the primary function of the UCC28063ADR?
The UCC28063ADR is a Natural Interleaving™ transition-mode Power Factor Correction (PFC) controller designed to optimize power supplies for high efficiency and low audible noise.
- What are the key benefits of the Natural Interleaving™ technique used in the UCC28063ADR?
The Natural Interleaving™ technique ensures strong matching between phases, faster responses, and operation in transition mode, which enhances efficiency and reduces audible noise.
- What are the operating temperature and voltage ranges for the UCC28063ADR?
The operating temperature range is -40°C to 125°C, and the operating voltage range is 10.35 V to 21 V DC.
- What types of protections are integrated into the UCC28063ADR?
The device includes input brownout, dropout recovery, output over-voltage, open-loop, overload, soft-start, phase-fail detection, and thermal shutdown protections.
- How does the UCC28063ADR handle inrush current?
The UCC28063ADR features inrush-safe current limiting, which prevents MOSFET conduction during inrush and eliminates reverse recovery events in output rectifiers.
- What is the significance of the Fail-Safe OVP with Dual Paths in the UCC28063ADR?
The Fail-Safe OVP with Dual Paths prevents output overvoltage conditions by detecting voltage-sensing failures, ensuring system safety.
- How does the UCC28063ADR improve light-load efficiency?
The device enhances efficiency during light-load conditions through advanced control mechanisms that reduce power consumption.
- What are the typical applications for the UCC28063ADR?
Typical applications include 100-W to 800-W power supplies, gaming systems, set-top boxes, adapters, LCD and plasma TVs, and home audio systems.
- What is the package type of the UCC28063ADR?
The UCC28063ADR is available in a 16-pin SOIC package.
- How does the UCC28063ADR reduce EMI filter size?
The device reduces EMI filter size through input filter and output capacitor ripple-current cancellation, which minimizes current ripple and allows for smaller bulk capacitors.
