Texas Instruments
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UCC28083PW
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UCC28083PW

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High-performance, low-power, voltage mode PWM controller
  • Package: PowerSO-20
  • Essence: Control and regulation of power supply systems
  • Packaging/Quantity: Tube/50 pieces per tube

Specifications

  • Input Voltage Range: 8V to 18V
  • Output Voltage Range: 0.8V to 5.1V
  • Operating Temperature Range: -40°C to 125°C
  • Maximum Duty Cycle: 100%
  • Switching Frequency: 100kHz to 1MHz
  • Output Current: Up to 2A

Detailed Pin Configuration

  1. VREF: Reference voltage input
  2. COMP: Error amplifier output
  3. FB: Feedback voltage input
  4. CS: Current sense input
  5. SS/TR: Soft-start/Tracking input
  6. RT/CT: Oscillator timing components
  7. GND: Ground
  8. VDD: Supply voltage input
  9. DRVH: High-side gate driver output
  10. DRVL: Low-side gate driver output
  11. BOOT: Bootstrap capacitor connection
  12. HO: High-side MOSFET gate drive output
  13. LO: Low-side MOSFET gate drive output
  14. VSENSE: Voltage sense input
  15. VCC: Internal regulator output
  16. UVLO: Undervoltage lockout input
  17. OVP: Overvoltage protection input
  18. SYNC: Synchronization input
  19. SS/TR: Soft-start/Tracking input
  20. VREF: Reference voltage input

Functional Features

  • Voltage mode control with adjustable frequency and duty cycle
  • Adaptive dead-time control for improved efficiency
  • Programmable soft-start and tracking functions
  • Overvoltage protection (OVP) and undervoltage lockout (UVLO) features
  • Synchronization capability for multi-phase operation
  • Integrated bootstrap diode for high-side gate driver

Advantages and Disadvantages

Advantages

  • High-performance power management solution
  • Wide input voltage range allows flexibility in various applications
  • Adjustable frequency and duty cycle provide control customization
  • Adaptive dead-time control enhances efficiency
  • Comprehensive protection features ensure system reliability

Disadvantages

  • Limited output current capacity (up to 2A)
  • Requires external components for complete power supply implementation
  • Relatively high cost compared to simpler PWM controllers

Working Principles

The UCC28083PW is a voltage mode PWM controller designed for power management applications. It operates by comparing the feedback voltage (FB) with a reference voltage (VREF) to generate an error signal. This error signal is then amplified and used to control the duty cycle of the power switch, regulating the output voltage.

The controller incorporates adaptive dead-time control, which optimizes the switching transitions to minimize power losses. It also features programmable soft-start and tracking functions, allowing gradual startup and synchronization with other power supplies.

To ensure system reliability, the UCC28083PW includes overvoltage protection (OVP) and undervoltage lockout (UVLO) features. These protect the power supply from excessive voltage levels and prevent operation below specified voltage thresholds.

Detailed Application Field Plans

The UCC28083PW is widely used in various power management applications, including:

  1. Switching Power Supplies: The controller is suitable for designing efficient and compact AC/DC and DC/DC converters used in computer systems, telecommunication equipment, industrial machinery, and consumer electronics.

  2. LED Lighting: With its adjustable frequency and duty cycle, the UCC28083PW can be utilized in LED drivers to achieve precise control of the LED current, ensuring optimal brightness and energy efficiency.

  3. Motor Control: The controller can be employed in motor control circuits to regulate the power supply for motors, enabling smooth and efficient operation in applications such as robotics, industrial automation, and electric vehicles.

Detailed and Complete Alternative Models

  1. UCC28081PW: Similar to UCC28083PW but with a lower output current capacity (up to 1A).
  2. UCC28084PW: Similar to UCC28083PW but with an extended input voltage range (8V to 24V).
  3. UCC28085PW: Similar to UCC28083PW but with higher output current capacity (up to 3A).

These alternative models provide options based on specific application requirements, allowing designers to choose the most suitable solution.

In conclusion, the UCC28083PW is a high-performance voltage mode PWM controller that offers flexibility, efficiency, and comprehensive protection features. Its wide range of applications and availability of alternative models make it a versatile choice for power management needs.

Énumérez 10 questions et réponses courantes liées à l'application de UCC28083PW dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of UCC28083PW in technical solutions:

  1. Q: What is UCC28083PW? A: UCC28083PW is a pulse width modulation (PWM) controller IC used for controlling power converters in various applications.

  2. Q: What are the key features of UCC28083PW? A: Some key features include voltage mode control, integrated high-voltage startup, adjustable switching frequency, and protection features like overvoltage and overcurrent protection.

  3. Q: How does UCC28083PW help in power converter designs? A: UCC28083PW provides precise control over the power conversion process, allowing efficient energy transfer and regulation of output voltages.

  4. Q: Can UCC28083PW be used in both AC-DC and DC-DC power converters? A: Yes, UCC28083PW can be used in both AC-DC and DC-DC power converter applications.

  5. Q: What is voltage mode control? A: Voltage mode control is a control technique where the output voltage of the power converter is compared with a reference voltage, and the duty cycle of the PWM signal is adjusted accordingly to regulate the output voltage.

  6. Q: How is the switching frequency of UCC28083PW determined? A: The switching frequency of UCC28083PW can be set using external components like resistors and capacitors connected to the RT and CT pins of the IC.

  7. Q: Does UCC28083PW have any protection features? A: Yes, UCC28083PW has built-in protection features such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.

  8. Q: Can UCC28083PW operate in a wide input voltage range? A: Yes, UCC28083PW can operate in a wide input voltage range, typically from 9V to 100V.

  9. Q: What are the typical applications of UCC28083PW? A: UCC28083PW is commonly used in applications like power supplies, LED lighting, motor drives, and battery chargers.

  10. Q: Are there any evaluation boards or reference designs available for UCC28083PW? A: Yes, Texas Instruments provides evaluation boards and reference designs that can help users quickly prototype and implement UCC28083PW in their applications.

Please note that these answers are general and may vary depending on specific design requirements and application scenarios.