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UCC3817DTR
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UCC3817DTR

Product Overview

Category

UCC3817DTR belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power management applications.

Characteristics

  • UCC3817DTR is a high-performance voltage mode PWM controller.
  • It operates with a wide input voltage range and offers excellent line and load regulation.
  • The device provides precise control over the output voltage, making it suitable for various power supply designs.

Package

UCC3817DTR is available in a small outline package (SOP) with 8 pins.

Essence

The essence of UCC3817DTR lies in its ability to regulate and control the output voltage in power management applications efficiently.

Packaging/Quantity

UCC3817DTR is typically packaged in reels, with each reel containing a specific quantity of ICs. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

  • Input Voltage Range: 4.5V to 16V
  • Output Voltage Range: 0.8V to 5.5V
  • Operating Temperature Range: -40°C to 85°C
  • Switching Frequency: Up to 1MHz
  • Maximum Duty Cycle: 100%
  • Output Current: Up to 1A

Detailed Pin Configuration

UCC3817DTR features the following pin configuration:

  1. COMP: Compensation pin for external compensation network.
  2. FB: Feedback pin for regulating the output voltage.
  3. CS: Current sense pin for monitoring the output current.
  4. GND: Ground reference pin.
  5. VREF: Reference voltage output pin.
  6. RT/CT: Timing resistor/capacitor connection pin.
  7. SS/TR: Soft-start/Shutdown control pin.
  8. VCC: Power supply voltage input pin.

Functional Features

  • Voltage Mode PWM Control: UCC3817DTR utilizes voltage mode control to regulate the output voltage accurately.
  • Adjustable Output Voltage: The device allows for precise adjustment of the output voltage within a specified range.
  • Wide Input Voltage Range: UCC3817DTR operates with a wide input voltage range, making it suitable for various power supply designs.
  • Excellent Line and Load Regulation: The IC provides excellent regulation under varying line and load conditions, ensuring stable output voltage.

Advantages and Disadvantages

Advantages

  • High-performance voltage mode PWM controller.
  • Wide input voltage range.
  • Excellent line and load regulation.
  • Precise control over the output voltage.

Disadvantages

  • Limited output current capacity (up to 1A).

Working Principles

UCC3817DTR works on the principle of voltage mode control. It compares the feedback voltage from the output with a reference voltage and adjusts the duty cycle of the PWM signal accordingly. By modulating the duty cycle, the IC regulates the output voltage to maintain it at the desired level.

Detailed Application Field Plans

UCC3817DTR finds applications in various power management systems, including but not limited to: - DC-DC converters - Switching power supplies - Battery chargers - LED drivers - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to UCC3817DTR are: - LM5035 - UC3843 - LT1241 - SG3525 - MAX668

These models offer similar functionality and can be used as substitutes depending on specific requirements.

In conclusion, UCC3817DTR is a high-performance voltage mode PWM controller used in power management applications. With its wide input voltage range, excellent regulation, and precise control over the output voltage, it proves to be a reliable choice for various power supply designs.

技術ソリューションにおける UCC3817DTR の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of UCC3817DTR in technical solutions:

  1. Q: What is UCC3817DTR? A: UCC3817DTR is a voltage mode PWM controller IC used for regulating power supplies.

  2. Q: What is the input voltage range of UCC3817DTR? A: The input voltage range of UCC3817DTR is typically between 8V and 18V.

  3. Q: What is the output voltage range of UCC3817DTR? A: The output voltage range of UCC3817DTR depends on the external components used, but it can be adjusted from a few volts up to several tens of volts.

  4. Q: What is the maximum switching frequency of UCC3817DTR? A: The maximum switching frequency of UCC3817DTR is typically around 500kHz.

  5. Q: Can UCC3817DTR be used in both buck and boost converter topologies? A: Yes, UCC3817DTR can be used in both buck and boost converter topologies.

  6. Q: Does UCC3817DTR have built-in protection features? A: Yes, UCC3817DTR has built-in protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown.

  7. Q: What is the maximum output current that UCC3817DTR can handle? A: The maximum output current that UCC3817DTR can handle depends on the external components used, but it can typically handle currents up to a few amps.

  8. Q: Can UCC3817DTR operate in a wide temperature range? A: Yes, UCC3817DTR can operate in a wide temperature range, typically from -40°C to 125°C.

  9. Q: What is the typical efficiency of UCC3817DTR? A: The typical efficiency of UCC3817DTR depends on the specific application and external components used, but it can achieve efficiencies above 90%.

  10. Q: Is UCC3817DTR suitable for battery-powered applications? A: Yes, UCC3817DTR is suitable for battery-powered applications as it has low quiescent current and can operate with input voltages commonly found in battery systems.

Please note that these answers are general and may vary depending on the specific implementation and design considerations. It's always recommended to refer to the datasheet and consult with an expert when designing with UCC3817DTR or any other component.