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UCC38500DW
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UCC38500DW

Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High-performance synchronous buck controller - Wide input voltage range - Adjustable output voltage - Current mode control - Overcurrent protection - Thermal shutdown protection

Package: SOIC (Small Outline Integrated Circuit)

Essence: The UCC38500DW is a power management IC designed for high-performance synchronous buck converter applications. It provides efficient power conversion with adjustable output voltage and various protection features.

Packaging/Quantity: The UCC38500DW is available in a SOIC package. The quantity may vary depending on the supplier.

Specifications

  • Input Voltage Range: 4.5V to 60V
  • Output Voltage Range: 0.8V to 55V
  • Maximum Output Current: 10A
  • Switching Frequency: Up to 2MHz
  • Operating Temperature Range: -40°C to 125°C

Pin Configuration

The UCC38500DW has the following pin configuration:

  1. VIN: Input voltage
  2. GND: Ground
  3. COMP: Compensation pin for feedback control
  4. FB: Feedback voltage pin
  5. EN: Enable pin for turning the device on/off
  6. SS/TR: Soft-start/tracking pin
  7. PGND: Power ground
  8. VCC: Supply voltage for internal circuitry
  9. BOOT: Bootstrap capacitor connection
  10. SW: Switch node connection
  11. SYNC: Synchronization input/output pin

Functional Features

  • Current Mode Control: Provides stable and reliable current regulation.
  • Adjustable Output Voltage: Allows flexibility in setting the desired output voltage.
  • Overcurrent Protection: Safeguards against excessive current flow.
  • Thermal Shutdown Protection: Prevents damage due to excessive temperature.
  • High Efficiency: Ensures efficient power conversion.
  • Wide Input Voltage Range: Suitable for a variety of applications.

Advantages and Disadvantages

Advantages: - High-performance power management IC - Wide input voltage range - Adjustable output voltage - Efficient power conversion - Overcurrent and thermal protection

Disadvantages: - Limited maximum output current (10A)

Working Principles

The UCC38500DW operates as a synchronous buck controller, converting a higher input voltage to a lower output voltage. It utilizes current mode control to regulate the output current and maintain stability. The device adjusts the duty cycle of the switching transistor to achieve the desired output voltage. Various protection features, such as overcurrent and thermal shutdown, ensure safe operation.

Application Field Plans

The UCC38500DW is commonly used in various power management applications, including: - DC-DC converters - Power supplies - Battery charging systems - Industrial equipment - Automotive electronics

Alternative Models

  1. LM5118: Synchronous Buck Controller
  2. TPS54332: Step-Down Converter
  3. LT8610: High-Efficiency Synchronous Buck Regulator
  4. MAX15062: High-Efficiency, Synchronous Step-Down Converter
  5. ADP2386: Synchronous Step-Down DC-DC Converter

These alternative models offer similar functionality and can be considered as substitutes for the UCC38500DW in specific applications.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af UCC38500DW i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of UCC38500DW in technical solutions:

  1. Q: What is UCC38500DW? A: UCC38500DW is a high-performance synchronous buck controller IC used for voltage regulation in power supply applications.

  2. Q: What is the input voltage range supported by UCC38500DW? A: UCC38500DW supports an input voltage range from 4.5V to 60V.

  3. Q: What is the output voltage range that can be achieved using UCC38500DW? A: The output voltage range achievable with UCC38500DW is typically from 0.8V to 55V.

  4. Q: Can UCC38500DW handle high current loads? A: Yes, UCC38500DW is designed to handle high current loads with a maximum output current capability of up to 25A.

  5. Q: Does UCC38500DW require an external MOSFET? A: Yes, UCC38500DW requires an external N-channel MOSFET to regulate the output voltage.

  6. Q: What is the switching frequency range of UCC38500DW? A: UCC38500DW has a wide adjustable switching frequency range from 100kHz to 1MHz.

  7. Q: Can UCC38500DW operate in a constant voltage (CV) mode? A: Yes, UCC38500DW can operate in both constant voltage (CV) and constant current (CC) modes.

  8. Q: Does UCC38500DW have built-in protection features? A: Yes, UCC38500DW incorporates various protection features like overvoltage protection (OVP), undervoltage lockout (UVLO), and thermal shutdown.

  9. Q: Can UCC38500DW be used in automotive applications? A: Yes, UCC38500DW is suitable for automotive applications as it meets the necessary requirements for automotive-grade components.

  10. Q: What are some typical applications of UCC38500DW? A: UCC38500DW is commonly used in various applications such as telecom power supplies, industrial power systems, server power supplies, and automotive power modules.

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