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UCC3813N-4
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UCC3813N-4

Product Overview

Category

UCC3813N-4 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power management applications.

Characteristics

  • UCC3813N-4 is a voltage mode PWM controller.
  • It operates with a fixed frequency of 100 kHz.
  • The IC has a wide input voltage range, typically from 2.7V to 18V.
  • It offers adjustable output voltage and current limiting capabilities.
  • UCC3813N-4 provides protection features such as overvoltage and undervoltage lockout.

Package

The UCC3813N-4 IC is available in a standard 8-pin PDIP (Plastic Dual In-line Package) package.

Essence

The essence of UCC3813N-4 lies in its ability to regulate and control power delivery efficiently in various electronic systems.

Packaging/Quantity

UCC3813N-4 is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

  • Input Voltage Range: 2.7V to 18V
  • Output Voltage Range: Adjustable
  • Frequency: 100 kHz (fixed)
  • Number of Pins: 8
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Duty Cycle: 100%
  • Maximum Output Current: Varies based on external components

Detailed Pin Configuration

  1. COMP: Compensation pin for loop stability.
  2. CS: Current sense input for current limiting.
  3. FB: Feedback pin for output voltage regulation.
  4. GND: Ground reference for the IC.
  5. RT/CT: Timing components connection for frequency adjustment.
  6. VCC: Power supply input for the IC.
  7. OUT: Output pin for regulated voltage.
  8. SS/TR: Soft-start and shutdown control pin.

Functional Features

  • Voltage mode PWM control for precise regulation.
  • Adjustable output voltage and current limiting.
  • Overvoltage and undervoltage lockout protection.
  • Soft-start function for controlled startup.
  • Shutdown capability for power saving.

Advantages and Disadvantages

Advantages

  • Wide input voltage range allows for versatile applications.
  • Precise voltage regulation ensures stable power delivery.
  • Current limiting feature protects the system from overload.
  • Protection mechanisms safeguard against voltage fluctuations.
  • Soft-start function prevents inrush current during startup.

Disadvantages

  • Limited maximum output current compared to some other ICs.
  • Fixed frequency may not be suitable for all applications.
  • Requires external components for complete functionality.

Working Principles

UCC3813N-4 operates based on the voltage mode PWM (Pulse Width Modulation) control technique. It compares the feedback voltage with a reference voltage to generate an error signal. This error signal is then used to adjust the duty cycle of the PWM waveform, which regulates the output voltage. By controlling the duty cycle, the IC maintains the desired output voltage even under varying load conditions.

Detailed Application Field Plans

UCC3813N-4 finds extensive use in various power management applications, including but not limited to: - DC-DC converters - Switching power supplies - Battery chargers - LED drivers - Industrial control systems

Detailed and Complete Alternative Models

  1. UCC3813-1: Similar to UCC3813N-4, but with a different fixed frequency.
  2. UCC3813-2: Another variant with a different fixed frequency.
  3. UCC3813-3: Similar to UCC3813N-4, but with a different fixed frequency.

These alternative models offer similar functionalities but may have variations in specifications and performance characteristics.

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Καταγράψτε 10 συνήθεις ερωτήσεις και απαντήσεις που σχετίζονται με την εφαρμογή του UCC3813N-4 σε τεχνικές λύσεις

Sure! Here are 10 common questions and answers related to the application of UCC3813N-4 in technical solutions:

  1. Q: What is UCC3813N-4? A: UCC3813N-4 is a voltage mode PWM controller IC used for regulating power supplies.

  2. Q: What is the input voltage range of UCC3813N-4? A: The input voltage range of UCC3813N-4 is typically between 7V and 30V.

  3. Q: What is the output voltage range of UCC3813N-4? A: The output voltage range of UCC3813N-4 depends on the external components used, but it can be adjusted to meet specific requirements.

  4. Q: What is the maximum switching frequency of UCC3813N-4? A: The maximum switching frequency of UCC3813N-4 is typically around 500kHz.

  5. Q: Can UCC3813N-4 be used in both buck and boost converter applications? A: Yes, UCC3813N-4 can be used in both buck and boost converter applications.

  6. Q: Does UCC3813N-4 have built-in protection features? A: Yes, UCC3813N-4 has built-in protection features such as overcurrent protection and thermal shutdown.

  7. Q: What is the typical efficiency of UCC3813N-4? A: The efficiency of UCC3813N-4 depends on the specific application and external components used, but it can achieve high efficiencies.

  8. Q: Can UCC3813N-4 operate in a wide temperature range? A: Yes, UCC3813N-4 can operate in a wide temperature range, typically from -40°C to 85°C.

  9. Q: What is the maximum output current that UCC3813N-4 can handle? A: The maximum output current of UCC3813N-4 depends on the external components used and the specific application, but it can handle several amps.

  10. Q: Is UCC3813N-4 suitable for battery-powered applications? A: Yes, UCC3813N-4 is suitable for battery-powered applications as it has low quiescent current and can efficiently regulate power supplies from batteries.

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