Overview
The UCC28C45D is a high-performance current-mode PWM controller manufactured by Texas Instruments. This component is designed for use in power supply applications, offering precise control and enhanced efficiency. The UCC28C45D is particularly suited for offline and DC-DC converters, making it a versatile choice for engineers in the power electronics sector. Its market positioning targets professionals seeking reliable and efficient power management solutions in industrial, automotive, and consumer electronics applications. The UCC28C45D stands out for its advanced features such as cycle-by-cycle current limiting, adjustable switching frequency, and robust protection mechanisms, ensuring reliable operation under various conditions.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage | 8.4 to 30 | V | Operating range |
| Switching Frequency | Up to 1 | MHz | Adjustable |
| Output Current | ±1 | A | Peak output current |
| Operating Temperature | -40 to 125 | °C | Industrial range |
| Package | SOIC-8 | Surface mount | |
| Current Limit | Cycle-by-cycle | Protection feature |
Key Features
- Current-Mode Control: Provides precise regulation and fast transient response.
- Adjustable Switching Frequency: Allows optimization for different applications.
- Cycle-by-Cycle Current Limiting: Enhances system reliability and safety.
- Under-Voltage Lockout (UVLO): Ensures proper operation under low voltage conditions.
- Soft-Start Functionality: Reduces inrush current during startup.
Applications
The UCC28C45D is widely used in various power supply applications, including:
- Industrial Power Supplies: Provides efficient and reliable power management for industrial equipment.
- Automotive Electronics: Ensures stable operation in automotive systems such as infotainment and lighting.
- Consumer Electronics: Ideal for compact and efficient power supplies in devices like adapters and chargers.
- Telecommunications: Supports power conversion in telecom infrastructure.
Q & A
1. What is the input voltage range of the UCC28C45D?
The input voltage range is 8.4V to 30V.
2. Can the switching frequency be adjusted?
Yes, the switching frequency is adjustable up to 1MHz.
3. What protection features does the UCC28C45D offer?
It includes cycle-by-cycle current limiting and under-voltage lockout (UVLO).
4. What is the operating temperature range?
The operating temperature range is -40°C to 125°C.
5. What package does the UCC28C45D come in?
It is available in an SOIC-8 surface mount package.
6. Is the UCC28C45D suitable for automotive applications?
Yes, it is designed to meet the requirements of automotive electronics.
7. Does it support soft-start functionality?
Yes, it includes a soft-start feature to reduce inrush current.
8. What is the peak output current?
The peak output current is ±1A.
9. Can it be used in offline converters?
Yes, it is suitable for both offline and DC-DC converters.
10. Where can I find detailed documentation for the UCC28C45D?
Detailed documentation is available on the Texas Instruments official website.
