Overview
The UC3875DWP is a high-performance PWM (Pulse Width Modulation) controller produced by Texas Instruments. This component is designed for advanced power management applications, particularly in high-frequency switching power supplies. It is packaged in a 28-pin SOIC (Small Outline Integrated Circuit) format, making it suitable for compact and efficient designs. The UC3875DWP is widely recognized for its ability to deliver precise control in resonant power conversion systems, making it a preferred choice for engineers working on high-efficiency power solutions.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Manufacturer | Texas Instruments | - | - |
| Category | PWM Controller | - | - |
| Package | SOIC-28 | - | - |
| Operating Frequency | Up to 2 MHz | Hz | - |
| Control Mode | Voltage/Current Mode | - | - |
| Output Type | Phase-Shifted PWM | - | - |
| Overcurrent Protection | Yes | - | - |
| Programmable Delay | Yes | - | Independent for each output pair |
Key Features
- High-frequency operation up to 2 MHz for efficient power conversion.
- Supports both voltage and current mode control for flexible design.
- Phase-shifted PWM for precise control of bridge power stages.
- Integrated overcurrent protection for enhanced system safety.
- Programmable delay for resonant switching actions.
Applications
The UC3875DWP is ideal for a wide range of applications, including high-efficiency power supplies, resonant converters, and industrial power systems. Its advanced control features make it particularly suitable for designs requiring high switching frequencies and precise power management, such as telecom power systems, server power supplies, and renewable energy inverters.
Q & A
1. What is the operating frequency range of the UC3875DWP?
The UC3875DWP can operate at frequencies up to 2 MHz, making it suitable for high-frequency power conversion applications.
2. Does the UC3875DWP support overcurrent protection?
Yes, the UC3875DWP includes integrated overcurrent protection to ensure system safety.
3. What control modes does the UC3875DWP support?
It supports both voltage and current mode control, providing flexibility in power supply design.
4. What is the package type of the UC3875DWP?
The UC3875DWP is available in a 28-pin SOIC package.
5. Can the UC3875DWP be used in resonant converter designs?
Yes, its phase-shifted PWM and programmable delay features make it ideal for resonant converter applications.
6. Is the UC3875DWP suitable for high-efficiency power supplies?
Absolutely, its high-frequency operation and advanced control features make it a great choice for high-efficiency designs.
7. What is the purpose of the programmable delay in the UC3875DWP?
The programmable delay allows for precise timing of resonant switching actions, improving control accuracy.
8. Can the UC3875DWP be synchronized with an external clock?
Yes, it supports clock synchronization for precise timing control in multi-device systems.
9. What industries commonly use the UC3875DWP?
It is widely used in telecom, industrial power systems, and renewable energy applications.
10. Is the UC3875DWP suitable for server power supplies?
Yes, its high-frequency operation and precise control make it an excellent choice for server power supply designs.
