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UCC28250RGPR
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UCC28250RGPR

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High-performance Current Mode PWM Controller
  • Package: 20-VQFN Exposed Pad
  • Essence: Regulating and controlling power in various applications
  • Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 4.5 V to 30 V
  • Output Voltage Range: 0.8 V to 14 V
  • Operating Temperature Range: -40°C to 125°C
  • Switching Frequency: Up to 1 MHz
  • Number of Pins: 20
  • Control Method: Current Mode

Detailed Pin Configuration

  1. COMP: Compensation Pin
  2. FB: Feedback Pin
  3. CS: Current Sense Pin
  4. RT/CT: Timing Components Pin
  5. SS/TR/UVLO: Soft-Start, Tracking, and Undervoltage Lockout Pin
  6. EN/UVLO: Enable and Undervoltage Lockout Pin
  7. PGND: Power Ground Pin
  8. AGND: Analog Ground Pin
  9. VDD: Supply Voltage Pin
  10. VREF: Reference Voltage Pin
  11. BOOT: High-Side Gate Driver Bootstrap Pin
  12. HO: High-Side Gate Driver Output Pin
  13. LO: Low-Side Gate Driver Output Pin
  14. LX: Switch Node Pin
  15. SS/TR/UVLO: Soft-Start, Tracking, and Undervoltage Lockout Pin
  16. SS/TR/UVLO: Soft-Start, Tracking, and Undervoltage Lockout Pin
  17. SS/TR/UVLO: Soft-Start, Tracking, and Undervoltage Lockout Pin
  18. SS/TR/UVLO: Soft-Start, Tracking, and Undervoltage Lockout Pin
  19. SS/TR/UVLO: Soft-Start, Tracking, and Undervoltage Lockout Pin
  20. PGND: Power Ground Pin

Functional Features

  • High-performance current mode PWM controller
  • Wide input voltage range for versatile applications
  • Adjustable output voltage for flexibility
  • High switching frequency for efficient power regulation
  • Comprehensive protection features including undervoltage lockout (UVLO)
  • Soft-start and tracking functionality for smooth startup

Advantages

  • Precise and reliable power management
  • Efficient power regulation with high switching frequency
  • Flexible output voltage adjustment
  • Comprehensive protection features ensure system safety
  • Smooth startup with soft-start and tracking functionality

Disadvantages

  • Limited to power management applications
  • Requires proper understanding of power electronics principles for optimal use

Working Principles

The UCC28250RGPR is a high-performance current mode PWM controller designed for power management applications. It operates by regulating the duty cycle of a switching power supply to control the output voltage. By monitoring the current sense pin and comparing it with the reference voltage, the controller adjusts the duty cycle accordingly to maintain the desired output voltage. The switching frequency can be set up to 1 MHz, allowing for efficient power regulation.

Detailed Application Field Plans

The UCC28250RGPR is widely used in various power management applications, including: - DC-DC converters - AC-DC converters - LED lighting systems - Industrial power supplies - Telecom power systems - Automotive electronics

Detailed and Complete Alternative Models

  • UCC28250DRCT
  • UCC28250PWPR
  • UCC28250PWP
  • UCC28250DGNR
  • UCC28250DGNT

These alternative models offer similar functionality and characteristics to the UCC28250RGPR, providing options for different package types and quantities.

In conclusion, the UCC28250RGPR is a high-performance current mode PWM controller used for power management applications. With its wide input voltage range, adjustable output voltage, and comprehensive protection features, it offers precise and reliable power regulation. Its compact package and availability in tape & reel packaging make it suitable for various industrial and electronic applications.

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací UCC28250RGPR v technických řešeních

Sure! Here are 10 common questions and answers related to the application of UCC28250RGPR in technical solutions:

  1. Q: What is UCC28250RGPR? A: UCC28250RGPR is a voltage mode PWM controller used for controlling power converters in various applications.

  2. Q: What are the key features of UCC28250RGPR? A: Some key features include adjustable frequency, soft-start capability, cycle-by-cycle current limit, and integrated high-voltage startup.

  3. Q: What types of power converters can UCC28250RGPR be used with? A: UCC28250RGPR can be used with various power converters such as flyback, forward, and half-bridge converters.

  4. Q: How does UCC28250RGPR help in improving power converter efficiency? A: UCC28250RGPR provides precise control over the power converter's switching frequency and duty cycle, resulting in improved efficiency.

  5. Q: Can UCC28250RGPR handle high input voltages? A: Yes, UCC28250RGPR has an integrated high-voltage startup circuit that allows it to handle high input voltages.

  6. Q: Does UCC28250RGPR have any protection features? A: Yes, UCC28250RGPR includes features like overvoltage protection, undervoltage lockout, and thermal shutdown to protect the system.

  7. Q: How can I adjust the operating frequency of UCC28250RGPR? A: The operating frequency can be adjusted by changing the value of the external timing resistor and capacitor connected to the RT/CT pins.

  8. Q: Can UCC28250RGPR support synchronous rectification? A: Yes, UCC28250RGPR has a dedicated pin (SR) to enable synchronous rectification for improved efficiency.

  9. Q: What is the maximum duty cycle that UCC28250RGPR can support? A: UCC28250RGPR can support a maximum duty cycle of 100%.

  10. Q: Are there any application notes or reference designs available for UCC28250RGPR? A: Yes, Texas Instruments provides application notes and reference designs that can help in implementing UCC28250RGPR in various technical solutions.

Please note that these answers are general and may vary depending on the specific requirements and implementation of UCC28250RGPR in different applications.