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UC2823BN

UC2823BN

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High-performance PWM Controller
  • Package: DIP-16 (Dual In-Line Package with 16 pins)
  • Essence: Regulates and controls the power supply in various applications
  • Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Input Voltage: 10V to 20V
  • Output Voltage: Adjustable, typically 5V to 15V
  • Operating Temperature: -40°C to +85°C
  • Switching Frequency: 100kHz to 1MHz
  • Maximum Duty Cycle: 50%
  • Protection Features: Overvoltage, Undervoltage, Overcurrent, Thermal Shutdown

Detailed Pin Configuration

  1. VREF: Reference voltage input
  2. COMP: Error amplifier output
  3. CS: Current sense input
  4. RT/CT: Timing components connection
  5. GND: Ground
  6. VCC: Supply voltage input
  7. SYNC: Synchronization input
  8. OSC: Oscillator timing capacitor connection
  9. SS/TR: Soft-start/tracking control
  10. OUT: Output voltage
  11. FB: Feedback input
  12. INV: Inverting input
  13. NC: No connection
  14. NC: No connection
  15. NC: No connection
  16. NC: No connection

Functional Features

  • High-performance pulse-width modulation (PWM) controller
  • Provides precise regulation and control of power supplies
  • Supports adjustable output voltage
  • Offers protection against overvoltage, undervoltage, overcurrent, and thermal shutdown
  • Synchronization input for multiple ICs
  • Soft-start/tracking control for smooth startup

Advantages and Disadvantages

Advantages

  • High-performance and reliable power management solution
  • Precise regulation and control of power supplies
  • Adjustable output voltage for flexibility
  • Protection features ensure safe operation
  • Synchronization capability for multiple ICs

Disadvantages

  • Limited maximum duty cycle (50%)
  • Requires external timing components for operation

Working Principles

The UC2823BN is a high-performance PWM controller that operates by regulating the duty cycle of a switching transistor. It uses feedback from the output voltage to adjust the duty cycle and maintain a stable output. The error amplifier compares the feedback voltage with a reference voltage, generating an error signal that controls the duty cycle.

By adjusting the duty cycle, the UC2823BN regulates the output voltage within a specified range. It also provides protection against overvoltage, undervoltage, overcurrent, and thermal shutdown, ensuring the safety of the power supply and connected devices.

Detailed Application Field Plans

The UC2823BN is widely used in various applications requiring precise power management. Some common application fields include:

  1. Switching Power Supplies: The UC2823BN is commonly used in switch-mode power supplies to regulate and control the output voltage efficiently.

  2. Battery Chargers: It can be employed in battery chargers to provide accurate charging voltage and current control.

  3. LED Lighting: The UC2823BN is suitable for LED lighting applications, enabling precise control of brightness and efficiency.

  4. Motor Control: It finds application in motor control circuits, allowing efficient and controlled operation of motors.

  5. Audio Amplifiers: The UC2823BN can be utilized in audio amplifiers to regulate the power supply and enhance audio performance.

Detailed and Complete Alternative Models

  1. UC3823BN: Similar to UC2823BN but with enhanced protection features and wider operating temperature range.
  2. UC1523BN: Lower-cost alternative with basic power management capabilities.
  3. UC2825BN: Higher-performance version with increased switching frequency and improved efficiency.

These alternative models offer similar functionality to the UC2823BN but may have additional features or variations in specifications to suit specific application requirements.

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Énumérez 10 questions et réponses courantes liées à l'application de UC2823BN dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of UC2823BN in technical solutions:

  1. Q: What is UC2823BN? A: UC2823BN is a pulse width modulation (PWM) controller IC commonly used in power supply applications.

  2. Q: What is the purpose of UC2823BN? A: The purpose of UC2823BN is to regulate the output voltage of a power supply by controlling the duty cycle of the PWM signal.

  3. Q: What is the input voltage range for UC2823BN? A: The input voltage range for UC2823BN typically varies from 8V to 35V.

  4. Q: What is the maximum output current that UC2823BN can handle? A: UC2823BN can handle a maximum output current of around 1A.

  5. Q: Can UC2823BN be used in both buck and boost converter configurations? A: Yes, UC2823BN can be used in both buck and boost converter configurations, making it versatile for various power supply designs.

  6. Q: Does UC2823BN have built-in protection features? A: No, UC2823BN does not have built-in protection features. External components need to be added for overcurrent or overvoltage protection.

  7. Q: What is the operating frequency range of UC2823BN? A: The operating frequency range of UC2823BN typically ranges from a few hundred kilohertz to a few megahertz.

  8. Q: Can UC2823BN operate in continuous or discontinuous mode? A: UC2823BN can operate in both continuous and discontinuous mode, depending on the load conditions and design requirements.

  9. Q: Is UC2823BN suitable for high-efficiency power supply designs? A: Yes, UC2823BN is suitable for high-efficiency power supply designs due to its low power consumption and adjustable frequency.

  10. Q: Are there any application notes or reference designs available for UC2823BN? A: Yes, the manufacturer of UC2823BN provides application notes and reference designs that can help in implementing the IC effectively in various technical solutions.

Please note that the answers provided here are general and may vary depending on specific design considerations and requirements.