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UCC3921DG4 - English Editing Encyclopedia Entry
Product Overview
Category: Integrated Circuit (IC)
Use: Power Management IC
Characteristics: - High-performance synchronous buck controller - Designed for use in power supply applications - Provides efficient voltage regulation and control
Package: SOIC (Small Outline Integrated Circuit)
Essence: UCC3921DG4 is a high-performance synchronous buck controller designed for power supply applications. It offers efficient voltage regulation and control.
Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.
Specifications
- Input Voltage Range: 4.5V to 28V
- Output Voltage Range: 0.8V to 5.5V
- Switching Frequency: Up to 1MHz
- Operating Temperature Range: -40°C to +125°C
- Features: Adjustable soft-start, overcurrent protection, undervoltage lockout, thermal shutdown
Detailed Pin Configuration
The UCC3921DG4 has the following pin configuration:
- VIN: Input voltage pin
- GND: Ground pin
- FB: Feedback pin for output voltage regulation
- COMP: Compensation pin for stability control
- EN: Enable pin for turning the device on/off
- SS: Soft-start pin for controlling the startup time
- PGND: Power ground pin
- SW: Switch node pin for connecting the power switch
Functional Features
- High-efficiency synchronous buck controller
- Wide input voltage range for versatile applications
- Adjustable soft-start for controlled startup
- Overcurrent protection for enhanced safety
- Undervoltage lockout to prevent improper operation
- Thermal shutdown to protect against overheating
Advantages and Disadvantages
Advantages: - High-performance voltage regulation - Efficient power management - Wide input voltage range - Comprehensive protection features
Disadvantages: - Limited output voltage range (0.8V to 5.5V) - Requires external power components for complete power supply implementation
Working Principles
The UCC3921DG4 operates as a synchronous buck controller, regulating the output voltage based on the feedback received from the FB pin. It utilizes a high-frequency switching technique to efficiently convert the input voltage to the desired output voltage. The device incorporates various protection mechanisms such as overcurrent protection, undervoltage lockout, and thermal shutdown to ensure safe and reliable operation.
Detailed Application Field Plans
The UCC3921DG4 is commonly used in the following applications:
- Power supplies for computer systems
- Industrial equipment power management
- Telecommunication infrastructure
- Automotive electronics
- Consumer electronics
Detailed and Complete Alternative Models
- LM2596S-ADJ: Adjustable Buck Converter IC
- LT8610ABEMSE#PBF: Synchronous Step-Down Regulator
- TPS54332DDAR: Non-Synchronous Buck Converter
- MAX15062ATB+: High-Efficiency Synchronous Buck Controller
- ADP2386ACPZ-R7: Programmable Synchronous Buck Converter
These alternative models offer similar functionality and can be considered as alternatives to the UCC3921DG4 for various power management applications.
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Liste 10 perguntas e respostas comuns relacionadas à aplicação de UCC3921DG4 em soluções técnicas
Sure! Here are 10 common questions and answers related to the application of UCC3921DG4 in technical solutions:
Q1: What is UCC3921DG4? A1: UCC3921DG4 is a specific integrated circuit (IC) designed for power management applications.
Q2: What are the key features of UCC3921DG4? A2: Some key features of UCC3921DG4 include overvoltage protection, undervoltage lockout, adjustable output voltage, and thermal shutdown.
Q3: What are the typical applications of UCC3921DG4? A3: UCC3921DG4 is commonly used in various technical solutions such as battery chargers, power supplies, and DC-DC converters.
Q4: How does UCC3921DG4 provide overvoltage protection? A4: UCC3921DG4 monitors the output voltage and shuts down the power supply if it exceeds a certain threshold, protecting the connected devices.
Q5: Can UCC3921DG4 be used in automotive applications? A5: Yes, UCC3921DG4 is suitable for automotive applications as it can handle the required voltage levels and has built-in protection features.
Q6: Is UCC3921DG4 compatible with different input voltages? A6: Yes, UCC3921DG4 can operate with a wide range of input voltages, typically from 4.5V to 40V.
Q7: How can I adjust the output voltage of UCC3921DG4? A7: The output voltage of UCC3921DG4 can be adjusted by using external resistors or voltage dividers connected to its feedback pin.
Q8: Does UCC3921DG4 have any thermal protection mechanism? A8: Yes, UCC3921DG4 has a built-in thermal shutdown feature that protects the IC from overheating by shutting down the power supply.
Q9: Can UCC3921DG4 operate in a wide temperature range? A9: Yes, UCC3921DG4 is designed to operate reliably in a wide temperature range, typically from -40°C to 125°C.
Q10: Is UCC3921DG4 available in different package options? A10: Yes, UCC3921DG4 is available in various package options such as SOIC-8 and PDIP-8, providing flexibility for different PCB designs.
Please note that these answers are general and may vary depending on the specific application and requirements. It's always recommended to refer to the datasheet and consult with technical experts for accurate information.