UCC28251PWR

The UCC28251PWR is a high-performance, dual-output pulse-width modulation (PWM) controller designed for power supply applications, particularly in isolated converters. It features a wide input voltage range, typically from 10V to 60V, making it suitable for both industrial and automotive applications. The device includes advanced functions such as voltage mode control, programmable dead time, and an integrated soft-start feature to minimize inrush current.
The UCC28251PWR supports high-efficiency operation with low standby power consumption and includes protection features like overcurrent protection, under-voltage lockout, and thermal shutdown. Its dual-output capability allows for the generation of multiple voltage rails, making it ideal for systems requiring multiple power sources.
The controller has a compact package design, enabling efficient thermal management and ease of integration into various circuit designs. With its robust performance and versatility, the UCC28251PWR is a preferred choice for designers looking to optimize power supply efficiency and reliability while maintaining compact form factors.

The UCC28251PWR is a high-performance PWM controller designed for power converter applications. Key features include:
1. Voltage Mode Control: It operates in voltage mode with a built-in error amplifier for precise regulation.
2. High Efficiency: Designed for high efficiency with low power loss.
3. Frequency Range: Adjustable switching frequency up to 1 MHz, allowing for design flexibility.
4. Soft Start: Integrated soft-start function to reduce inrush current during startup.
5. Current Limiting: Offers cycle-by-cycle current limiting for enhanced protection.
6. Voltage Feedback: Utilizes a differential voltage feedback for improved regulation.
7. Adaptive Deadtime Control: Optimizes switching transitions to minimize losses and improve efficiency.
8. Power Supply Voltage Range: Operates from a wide input voltage range, enhancing versatility.
9. Compact Package: Available in a small 20-pin HTQFP package, facilitating space-efficient designs.
These features make the UCC28251PWR suitable for various applications including DC-DC converters and power supplies in consumer and industrial environments.

The UCC28251PWR is packaged in a PowerPAD™ HTQFP-48 (Thin Quad Flat Package) which features 48 pins. This package type is designed for efficient thermal performance and is suitable for applications requiring high integration and space efficiency.

The UCC28251PWR is a high-performance, high-voltage PWM controller from Texas Instruments. It features a total of 16 pins.
Key functions of its pins include:
1. VCC (Pin 1) - Power supply input.
2. GND (Pin 2) - Ground reference.
3. COMP (Pin 3) - Compensation network connection.
4. CS (Pin 4) - Current sense input for overcurrent protection.
5. RT (Pin 5) - Timing resistor connection for setting the switching frequency.
6. CT (Pin 6) - Timing capacitor connection.
7. RAMP (Pin 7) - Ramp signal input for PWM modulation.
8. ISENSE (Pin 8) - Input for current sensing.
9. PHASE (Pin 9) - Connects to the switching node.
10. SW (Pin 10) - Switch node connection.
11. PWM (Pin 11) - PWM output signal.
12. VREF (Pin 12) - Reference voltage output.
13. SS (Pin 13) - Soft start capacitor connection.
14. FREQ (Pin 14) - Frequency adjustment pin.
15. DTC (Pin 15) - Duty cycle control input.
16. NC (Pin 16) - Not connected.
These pins facilitate various functions essential for power management and control in switching power supplies.

The UCC28251PWR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of analog and digital electronic components. Founded in 1930, TI is known for its innovations in signal processing, microcontrollers, and power management solutions, catering to various industries including automotive, industrial, communications, and consumer electronics. The UCC28251PWR is a high-performance, voltage-mode controller widely used in power supply applications.

The UCC28251PWR is a high-performance, isolated primary-side controller used in power supply applications. Key application areas include:
1. Flyback Converters - For low to medium power supply designs.
2. AC-DC Power Supplies - In consumer electronics and industrial applications.
3. Telecommunications - For reliable voltage regulation.
4. LED Drivers - In lighting systems requiring efficient power conversion.
5. Battery Chargers - Ensuring optimal charging performance for various battery types.
Its features support energy efficiency and compact design.

The UCC28251PWR is a high-performance, dual-output voltage regulator controller. Equivalent products include the TL494, LM511, and LM2576 for similar applications in power regulation. However, specifications like voltage range, current capacity, and switching frequency may differ, so it's essential to check datasheets for specific requirements.