The UCC25701D from Texas Instruments is a high-performance, fixed-frequency current-mode PWM controller designed for a wide range of power supply applications. This versatile controller integrates several features that enhance the reliability and performance of switch-mode power supplies (SMPS), including those used in off-line and DC-to-DC converter configurations.
Key Features
- Current-Mode Control: The UCC25701D employs current-mode control to provide fast transient response and excellent loop stability.
- Programmable Switching Frequency: Users can set the operating frequency from 100 kHz to 1 MHz, allowing flexibility in the design of the magnetic components and optimization of efficiency.
- High-Current Totem-Pole Output: The device features a totem-pole output stage capable of driving a power MOSFET or IGBT directly, simplifying the design and reducing component count.
- Soft-Start Function: A soft-start function limits the inrush current during startup, reducing stress on the power supply components and improving system reliability.
- Under-Voltage Lockout (UVLO): The UVLO feature ensures that the controller operates only when the supply voltage is within the specified range, protecting the circuit from low-voltage conditions.
Applications
The UCC25701D is suitable for a variety of applications, including:
- AC-DC power supplies for consumer electronics
- Telecommunication and computer power systems
- Industrial power supplies
- DC-DC converters
Quality and Reliability
As with all Texas Instruments products, the UCC25701D is designed to meet the highest quality and reliability standards. It is available in the industry-standard 8-pin SOIC package, making it easy to integrate into existing designs. Whether you're developing a new power supply or upgrading an existing one, the UCC25701D offers a reliable and efficient solution for your PWM control needs.
Technical Specifications
Parameter
Value
Operating Frequency
100 kHz to 1 MHz
Output Drive Capability
High-Current Totem Pole
Supply Voltage Range
10 V to 20 V
Package Type
8-pin SOIC
For detailed information, datasheets, and technical support, visit the Texas Instruments website to learn more about the UCC25701D PWM controller.
