Overview
The UCC28019ADR is a sophisticated Power Factor Correction (PFC) controller designed and manufactured by Texas Instruments. This integrated circuit is optimized for use in switch-mode power supplies, particularly in boost PFC applications. It operates in Continuous Conduction Mode (CCM), ensuring high efficiency and compliance with stringent power quality standards such as EN61000-3-2. The UCC28019ADR integrates various advanced features, including a high-voltage startup current source, pulse-width modulation control, and comprehensive protection mechanisms, making it an ideal choice for a wide range of power management applications.
Key Specifications
| Parameter | Value |
|---|---|
| Regulator Topology | Boost |
| Control Mode | Continuous Conduction Mode (CCM) |
| Switching Frequency (max) (kHz) | 65 |
| UVLO Thresholds On/Off (V) | 10.5/9.5 |
| Vin (max) (V) | 21 |
| Duty Cycle (max) (%) | 98% (typ.) |
| Operating Temperature Range (°C) | -40 to 125 |
| Package | 8-SOIC (Small Outline Integrated Circuit) |
| Startup Current | 100 µA |
| Supply Voltage Range | 10V to 21V |
Key Features
- Fixed 65-kHz operating frequency
- Pulse-width modulation control with adjustable slope compensation
- Overcurrent and overvoltage protection
- Cycle-by-cycle peak current limiting and soft over-current protection
- Input brown-out protection and output over/undervoltage protection
- Low-power user-controlled standby mode
- Auxiliary output for remote control and programmable soft-start function
- Internal clamp limits the gate drive voltage to 12.5 V
- Compact 8-SOIC package for space-saving designs
Applications
- Advanced power supplies
- LED lighting applications
- Smooth motor control
- Industrial equipment and computing peripherals
- White goods (e.g., refrigerators)
Q & A
- What is the primary function of the UCC28019ADR?
The UCC28019ADR is a Power Factor Correction (PFC) controller designed to improve the power factor and efficiency of AC-DC power supplies.
- What is the operating frequency of the UCC28019ADR?
The UCC28019ADR operates at a fixed frequency of 65 kHz.
- What are the key protection features of the UCC28019ADR?
The key protection features include overcurrent and overvoltage protection, cycle-by-cycle peak current limiting, input brown-out protection, and output over/undervoltage protection.
- What is the operating temperature range of the UCC28019ADR?
The operating temperature range is from -40°C to 125°C.
- What package type does the UCC28019ADR come in?
The UCC28019ADR comes in an 8-SOIC (Small Outline Integrated Circuit) package.
- What is the maximum duty cycle of the UCC28019ADR?
The maximum duty cycle is 98% (typ.).
- Does the UCC28019ADR support low-power standby mode?
- What are some common applications of the UCC28019ADR?
- How does the UCC28019ADR simplify the design process?
The UCC28019ADR simplifies the design process by integrating a high-voltage startup current source and reducing the need for external components.
- What are the equivalent products to the UCC28019ADR?
