Overview
The UCC28710DR, manufactured by Texas Instruments, is a high-performance AC-DC controller and regulator designed for power supply applications. This model is part of the UCC2871x series, which is known for its primary-side regulation (PSR) technology, eliminating the need for an optocoupler. The UCC28710DR is particularly suited for compact and efficient power supply designs, targeting industries such as consumer electronics, industrial automation, and telecommunications. Its unique selling points include low standby power consumption, high efficiency, and a robust set of protection features, making it a competitive choice in the market.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Control Mode | Primary-side regulation | - | No optocoupler required |
| Switching Frequency (Max) | 100 | kHz | High power density |
| UVLO Thresholds (On/Off) | 21/8 | V | Undervoltage lockout |
| Duty Cycle (Max) | 99 | % | High efficiency |
| Operating Temperature Range | -40 to 125 | °C | Wide range for robust performance |
| Device Type | Controllers | - | For power supply applications |
| Topology | Buck, Flyback | - | Versatile design |
| Protection Features | Overvoltage, Low Line, Overcurrent | - | Enhanced reliability |
Key Features
- Primary-side regulation (PSR) eliminates the need for an optocoupler, reducing system complexity and cost.
- Low standby power consumption (<10mW) ensures energy efficiency in idle states.
- High switching frequency (up to 100kHz) enables compact and high-power-density designs.
- Comprehensive protection features, including overvoltage, low line, and overcurrent protection, enhance system reliability.
- Dynamic control of operating states and custom modulation profiles optimize performance across varying load and line conditions.
Applications
The UCC28710DR is widely used in various applications, including:
- Consumer Electronics: Power adapters, chargers, and low-power devices benefit from its compact design and high efficiency.
- Industrial Automation: Its robust protection features and wide operating temperature range make it suitable for industrial power supplies.
- Telecommunications: The controller's low standby power consumption and high reliability are ideal for telecom infrastructure.
- Lighting: LED drivers and other lighting applications leverage its high efficiency and compact form factor.
Q & A
1. What is the primary-side regulation (PSR) feature?
Primary-side regulation allows the UCC28710DR to control output voltage and current without requiring an optocoupler, simplifying the design and reducing costs.
2. What is the maximum switching frequency of the UCC28710DR?
The maximum switching frequency is 100kHz, enabling high power density and compact designs.
3. What are the UVLO thresholds for the UCC28710DR?
The UVLO thresholds are 21V (on) and 8V (off), ensuring stable operation under varying input voltage conditions.
4. What protection features does the UCC28710DR offer?
It includes overvoltage, low line, and overcurrent protection, enhancing system reliability.
5. What is the operating temperature range of the UCC28710DR?
The operating temperature range is -40°C to 125°C, making it suitable for harsh environments.
6. What is the maximum duty cycle of the UCC28710DR?
The maximum duty cycle is 99%, ensuring high efficiency in power conversion.
7. What topologies does the UCC28710DR support?
It supports buck and flyback topologies, providing versatility in power supply designs.
8. What is the standby power consumption of the UCC28710DR?
The standby power consumption is less than 10mW, ensuring energy efficiency in idle states.
9. Can the UCC28710DR be used in lighting applications?
Yes, its high efficiency and compact design make it ideal for LED drivers and other lighting applications.
10. What industries benefit most from the UCC28710DR?
Consumer electronics, industrial automation, telecommunications, and lighting are the primary industries that benefit from its features.
