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UCC3889N
Product Overview
Category
UCC3889N belongs to the category of integrated circuits (ICs).
Use
The UCC3889N IC is primarily used for power management applications.
Characteristics
- High efficiency
- Low power consumption
- Compact size
- Wide operating voltage range
Package
UCC3889N is available in a standard 16-pin dual in-line package (DIP).
Essence
The essence of UCC3889N lies in its ability to efficiently regulate and control power in various electronic devices.
Packaging/Quantity
UCC3889N is typically packaged in reels or tubes, with each reel/tube containing a specific quantity of ICs. The exact quantity may vary depending on the manufacturer's specifications.
Specifications
- Input Voltage Range: 4.5V - 40V
- Output Voltage Range: 0.8V - 37V
- Maximum Output Current: 3A
- Operating Temperature Range: -40°C to +85°C
- Switching Frequency: 500kHz
Detailed Pin Configuration
- VIN: Input voltage pin
- GND: Ground pin
- FB: Feedback pin
- COMP: Compensation pin
- EN: Enable pin
- SS/TR: Soft-start/Tracking pin
- VREF: Reference voltage pin
- VSENSE: Current sense pin
- PGND: Power ground pin
- SW: Switching pin
- BST: Bootstrap pin
- SS/TR: Soft-start/Tracking pin
- VCC: Supply voltage pin
- UVLO: Undervoltage lockout pin
- SYNC: Synchronization pin
- VOUT: Output voltage pin
Functional Features
- High-efficiency synchronous buck converter
- Adjustable output voltage
- Overcurrent protection
- Thermal shutdown protection
- Soft-start and tracking capabilities
- Synchronization with external clock signal
Advantages and Disadvantages
Advantages
- High efficiency leads to reduced power consumption
- Wide operating voltage range allows for versatile applications
- Compact size enables integration into space-constrained designs
- Comprehensive protection features enhance reliability
Disadvantages
- Limited maximum output current may restrict usage in high-power applications
- Requires external synchronization for precise timing control
Working Principles
UCC3889N operates as a synchronous buck converter, converting a higher input voltage to a lower output voltage efficiently. It utilizes pulse-width modulation (PWM) techniques to regulate the output voltage based on feedback from the FB pin. The IC incorporates various protection mechanisms such as overcurrent and thermal shutdown to ensure safe operation.
Detailed Application Field Plans
UCC3889N finds applications in a wide range of electronic devices, including but not limited to: - Power supplies - Battery chargers - LED lighting systems - Industrial automation equipment - Automotive electronics
Detailed and Complete Alternative Models
- UCC3889M: Similar specifications and features, but available in a smaller surface-mount package.
- UCC3890N: Higher maximum output current (5A) with similar characteristics and pin configuration.
- UCC3891N: Enhanced synchronization capabilities for precise timing control.
These alternative models provide options for different application requirements while maintaining compatibility with the UCC3889N's functionality.
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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng UCC3889N trong giải pháp kỹ thuật
Sure! Here are 10 common questions and answers related to the application of UCC3889N in technical solutions:
Q: What is UCC3889N? A: UCC3889N is a high-performance synchronous buck controller IC used for power management applications.
Q: What is the input voltage range supported by UCC3889N? A: UCC3889N supports an input voltage range from 4.5V to 60V.
Q: What is the output voltage range that can be achieved using UCC3889N? A: UCC3889N can achieve an output voltage range from 0.6V to 55V.
Q: What is the maximum output current that UCC3889N can handle? A: UCC3889N can handle a maximum output current of up to 25A.
Q: Can UCC3889N operate in a wide temperature range? A: Yes, UCC3889N is designed to operate in a wide temperature range from -40°C to 125°C.
Q: Does UCC3889N have any built-in protection features? A: Yes, UCC3889N includes various protection features such as overcurrent protection, overvoltage protection, and thermal shutdown.
Q: Can UCC3889N be used in both step-up and step-down applications? A: No, UCC3889N is specifically designed for step-down (buck) applications only.
Q: What is the switching frequency range of UCC3889N? A: UCC3889N has a switching frequency range from 100kHz to 2MHz.
Q: Is UCC3889N suitable for battery-powered applications? A: Yes, UCC3889N is suitable for battery-powered applications as it supports a wide input voltage range and has low quiescent current.
Q: What are the typical applications of UCC3889N? A: UCC3889N is commonly used in various power management applications such as telecom equipment, industrial automation, and automotive electronics.
Please note that these answers are general and may vary depending on specific design requirements and application scenarios.