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UCC28516DWRG4
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UCC28516DWRG4

Product Overview

Category

UCC28516DWRG4 belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various power supply systems, including switch-mode power supplies (SMPS), battery chargers, and LED drivers.

Characteristics

  • High efficiency: UCC28516DWRG4 offers excellent power conversion efficiency, reducing energy losses.
  • Wide input voltage range: It can operate with input voltages ranging from 4.5V to 65V, making it suitable for a wide range of applications.
  • Adjustable output voltage: The output voltage can be easily adjusted using external components.
  • Protection features: This IC incorporates various protection mechanisms such as overvoltage protection, undervoltage lockout, and thermal shutdown.

Package

UCC28516DWRG4 is available in a standard SOIC-16 package, which provides good thermal dissipation and ease of soldering.

Essence

The essence of UCC28516DWRG4 lies in its ability to efficiently regulate and control power in various applications, ensuring stable and reliable operation.

Packaging/Quantity

This IC is typically supplied in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Input Voltage Range: 4.5V to 65V
  • Output Voltage Range: Adjustable
  • Switching Frequency: Up to 1 MHz
  • Operating Temperature Range: -40°C to 125°C
  • Package Type: SOIC-16

Detailed Pin Configuration

  1. VIN: Input voltage pin
  2. GND: Ground reference pin
  3. COMP: Compensation pin for loop stability
  4. FB: Feedback pin for output voltage regulation
  5. CS: Current sense pin for current limit control
  6. EN: Enable pin for turning the IC on/off
  7. VCC: Supply voltage pin for internal circuitry
  8. SS/TR: Soft-start/Tracking pin for controlling start-up behavior
  9. RT/CT: Timing resistor/capacitor connection pins for frequency control
  10. SYNC: Synchronization pin for external clock synchronization
  11. PGND: Power ground reference pin
  12. DRVH: High-side gate driver output pin
  13. DRVL: Low-side gate driver output pin
  14. BST: Bootstrap capacitor connection pin
  15. VREF: Reference voltage output pin
  16. VSENSE: Voltage sense pin for feedback and protection

Functional Features

  • Constant voltage (CV) and constant current (CC) regulation modes
  • Cycle-by-cycle current limit protection
  • Adjustable soft-start time
  • Frequency synchronization capability
  • Overvoltage protection (OVP)
  • Undervoltage lockout (UVLO)
  • Thermal shutdown protection

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power losses
  • Wide input voltage range allows for versatile applications
  • Comprehensive protection features enhance system reliability
  • Adjustable output voltage provides flexibility in design

Disadvantages

  • Limited maximum switching frequency compared to some other ICs in the same category
  • Requires external components for certain functionalities, increasing system complexity

Working Principles

UCC28516DWRG4 operates based on a pulse-width modulation (PWM) control scheme. It regulates the output voltage by adjusting the duty cycle of the switching waveform. The feedback loop compares the output voltage with a reference voltage and adjusts the duty cycle accordingly to maintain the desired output voltage.

The IC also incorporates various protection mechanisms such as overvoltage protection, undervoltage lockout, and thermal shutdown. These features ensure safe operation and protect the system from potential faults or failures.

Detailed Application Field Plans

UCC28516DWRG4 finds applications in a wide range of power management systems, including: - Switch-mode power supplies (SMPS) for industrial and consumer electronics - Battery chargers for portable devices and electric vehicles - LED drivers for lighting applications - Power inverters for renewable energy systems

Detailed and Complete Alternative Models

  1. UCC28517DWRG4: Similar to UCC28516DWRG4 with additional features for advanced protection and control.
  2. UCC28518DWRG4: Higher switching frequency variant for applications requiring faster response times.
  3. UCC28519DWRG4: Lower input voltage range variant suitable for low-power applications.

These alternative models offer similar functionality while catering to specific requirements or performance criteria.

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技術ソリューションにおける UCC28516DWRG4 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 UCC28516DWRG4 in technical solutions:

  1. Q: What is UCC28516DWRG4? A: UCC28516DWRG4 is a synchronous flyback controller IC designed for high-density power supplies.

  2. Q: What are the key features of UCC28516DWRG4? A: Some key features include wide input voltage range, high efficiency, adjustable switching frequency, and integrated protection features.

  3. Q: What is the typical application of UCC28516DWRG4? A: UCC28516DWRG4 is commonly used in applications such as AC/DC adapters, LED lighting, telecom power supplies, and industrial power systems.

  4. Q: How does UCC28516DWRG4 achieve high efficiency? A: UCC28516DWRG4 utilizes advanced control techniques like valley switching and frequency foldback to optimize efficiency at light loads.

  5. Q: Can UCC28516DWRG4 operate with a wide input voltage range? A: Yes, UCC28516DWRG4 can operate with an input voltage range from 4.5V to 65V, making it suitable for various power supply designs.

  6. Q: Is UCC28516DWRG4 capable of providing accurate output voltage regulation? A: Yes, UCC28516DWRG4 incorporates a feedback loop that enables precise output voltage regulation.

  7. Q: Does UCC28516DWRG4 offer any protection features? A: Yes, UCC28516DWRG4 includes protection features like overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.

  8. Q: Can UCC28516DWRG4 be synchronized with an external clock? A: Yes, UCC28516DWRG4 provides the option to synchronize its switching frequency with an external clock for system-level synchronization.

  9. Q: What is the maximum switching frequency of UCC28516DWRG4? A: The maximum switching frequency of UCC28516DWRG4 is typically 1 MHz, allowing for high-frequency operation in power supply designs.

  10. Q: Is UCC28516DWRG4 available in a small form factor package? A: Yes, UCC28516DWRG4 is available in a small 20-pin SOIC package, making it suitable for space-constrained applications.

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