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UCC38502N
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UCC38502N

Product Overview

Category

UCC38502N belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power management applications.

Characteristics

  • High efficiency
  • Low power consumption
  • Compact size
  • Wide input voltage range
  • Overcurrent protection
  • Thermal shutdown protection

Package

UCC38502N is available in a standard 8-pin dual in-line package (DIP).

Essence

The essence of UCC38502N lies in its ability to efficiently regulate and control power in various electronic devices.

Packaging/Quantity

UCC38502N is typically sold in reels or tubes, with each reel/tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

  • Input Voltage Range: 4.5V to 36V
  • Output Voltage Range: 0.8V to 34V
  • Maximum Output Current: 2A
  • Switching Frequency: 500kHz
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. FB: Feedback pin for output voltage regulation
  4. EN: Enable pin for turning the IC on/off
  5. SS/TR: Soft-start/Tracking pin for controlling startup behavior
  6. COMP: Compensation pin for stability optimization
  7. VOUT: Output voltage pin
  8. SW: Switching pin for connecting the external power switch

Functional Features

  • Wide input voltage range allows compatibility with various power sources.
  • High efficiency ensures minimal power loss during operation.
  • Overcurrent protection safeguards against excessive current flow.
  • Thermal shutdown protection prevents overheating and damage to the IC.
  • Soft-start feature enables smooth startup without voltage spikes.
  • Tracking capability allows synchronization with other power management components.

Advantages

  • Compact size makes it suitable for space-constrained applications.
  • High efficiency results in energy savings and reduced heat dissipation.
  • Wide input voltage range provides flexibility in power source selection.
  • Overcurrent protection enhances system reliability and safety.
  • Thermal shutdown protection prevents IC damage due to excessive temperature.

Disadvantages

  • Limited maximum output current may restrict usage in high-power applications.
  • Availability and pricing may vary depending on the supplier and market demand.

Working Principles

UCC38502N operates as a step-down (buck) converter, converting higher input voltages to lower output voltages efficiently. It utilizes pulse-width modulation (PWM) techniques to regulate the output voltage based on feedback received from the FB pin. The internal control circuitry adjusts the duty cycle of the switching signal to maintain the desired output voltage.

Detailed Application Field Plans

UCC38502N finds application in various fields, including but not limited to: - Power supplies for industrial equipment - Automotive electronics - Telecommunications systems - Consumer electronics - LED lighting systems

Detailed and Complete Alternative Models

  1. UCC28517: Similar functionality with higher maximum output current (3A).
  2. LM2596: Widely used buck converter IC with adjustable output voltage.
  3. TPS5430: Synchronous buck converter IC with integrated MOSFETs for improved efficiency.

These alternative models offer similar features and can be considered as substitutes for UCC38502N depending on specific requirements and availability.

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技術ソリューションにおける UCC38502N 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 UCC38502N in technical solutions:

  1. Q: What is UCC38502N? A: UCC38502N is a high-performance synchronous buck controller IC used in power management applications.

  2. Q: What is the input voltage range supported by UCC38502N? A: UCC38502N supports an input voltage range from 4.5V to 60V.

  3. Q: What is the output voltage range that can be achieved using UCC38502N? A: UCC38502N can achieve an output voltage range from 0.8V to 55V.

  4. Q: What is the maximum output current that UCC38502N can handle? A: UCC38502N can handle a maximum output current of up to 20A.

  5. Q: Can UCC38502N operate in a wide temperature range? A: Yes, UCC38502N has a wide operating temperature range of -40°C to 125°C.

  6. Q: Does UCC38502N have built-in protection features? A: Yes, UCC38502N includes various protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown.

  7. Q: Can UCC38502N be used in both step-down and step-up applications? A: No, UCC38502N is specifically designed for step-down (buck) applications.

  8. Q: What is the switching frequency range of UCC38502N? A: UCC38502N has a fixed-frequency operation with a switching frequency range of 100kHz to 2MHz.

  9. Q: Is UCC38502N suitable for battery-powered applications? A: Yes, UCC38502N is suitable for battery-powered applications due to its low quiescent current and high efficiency.

  10. Q: What are the typical applications of UCC38502N? A: UCC38502N is commonly used in various power management applications such as telecom equipment, industrial automation, and automotive systems.

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