UCC28C41QDRQ1

The UCC28C41QDRQ1 is a high-performance voltage mode PWM (Pulse Width Modulation) controller designed by Texas Instruments, primarily used in power supply applications. This device is part of the UCC28C41 family, which is known for its efficiency and reliability in managing power conversion processes.

Key Features:

1. Voltage Mode Control: The UCC28C41 operates in voltage mode, which allows for stable control of the output voltage in various power supply configurations.

2. Integrated Functions: It includes several integrated functions such as a high-voltage startup circuit, a precision reference voltage, and a soft-start feature to minimize inrush current during startup.

3. Wide Input Voltage Range: The device can handle a wide input voltage range, typically from 8V to 30V, making it suitable for various applications, including adapters and power supplies.

4. Frequency Range: The UCC28C41 supports a switching frequency range that can be adjusted, typically from 100 kHz to 500 kHz, allowing designers to optimize for efficiency and size.

5. Current Limiting: It features built-in current limiting to protect against overcurrent conditions, enhancing the safety and reliability of the power supply.

6. Thermal Shutdown: The controller includes thermal shutdown protection, which disables the device in case of overheating, preventing damage to the circuit.

7. Package Type: The UCC28C41QDRQ1 is available in a QFN (Quad Flat No-lead) package, which provides a compact footprint and efficient thermal performance.

8. Applications: This controller is commonly used in applications such as AC-DC converters, DC-DC converters, and battery chargers, making it versatile for various power management needs.

Electrical Characteristics:

• Supply Voltage: The device typically operates with a supply voltage of around 15V.
• Output Voltage Reference: It has a reference voltage of approximately 1.25V, which is crucial for feedback control in power supply designs.
• Dimming Control: The UCC28C41 can also be used in LED driver applications, where it can control the brightness of LEDs through PWM dimming techniques.

Design Considerations:

When designing with the UCC28C41QDRQ1, engineers should consider the layout of the PCB to minimize noise and ensure stable operation. Proper selection of external components, such as resistors and capacitors, is essential to achieve the desired performance characteristics.

In summary, the UCC28C41QDRQ1 from Texas Instruments is a robust and efficient PWM controller that offers a range of features suitable for various power supply applications, making it a popular choice among engineers in the field of power electronics.