LNK6774V
Product Overview
Category: Integrated Circuit (IC)
Use: Power Management IC
Characteristics: - High efficiency - Low standby power consumption - Wide input voltage range - Over-temperature protection - Over-voltage protection - Over-current protection
Package: SOP-7
Essence: The LNK6774V is a power management IC designed for efficient power conversion in various applications.
Packaging/Quantity: The LNK6774V is typically sold in reels of 2500 units.
Specifications
- Input Voltage Range: 85 VAC to 265 VAC
- Output Voltage: 5 V
- Output Current: 1 A
- Switching Frequency: 132 kHz
- Standby Power Consumption: < 30 mW
- Operating Temperature Range: -40°C to +150°C
Detailed Pin Configuration
The LNK6774V has the following pin configuration:
- VDD: Power supply input
- BP/MODE: Feedback and control pin
- FB: Feedback pin
- GND: Ground
- DRAIN: Power switch drain
- SOURCE: Power switch source
- NC: No connection
Functional Features
- Primary-side regulation (PSR) controller
- Accurate constant voltage (CV) output
- Built-in over-temperature, over-voltage, and over-current protection
- Auto-restart protection mode for fault conditions
- Frequency jittering for reduced EMI emissions
- Cycle-by-cycle current limit
Advantages and Disadvantages
Advantages: - High efficiency power conversion - Wide input voltage range allows for global compatibility - Compact SOP-7 package for space-constrained applications - Comprehensive protection features ensure safe operation
Disadvantages: - Limited output current capability (1 A) - Relatively high operating temperature range (-40°C to +150°C)
Working Principles
The LNK6774V utilizes primary-side regulation (PSR) control to achieve accurate constant voltage (CV) output. It operates by modulating the duty cycle of the internal power switch based on the feedback received from the FB pin. The PSR control eliminates the need for an optocoupler or secondary-side feedback circuitry, simplifying the design and reducing component count.
Detailed Application Field Plans
The LNK6774V is commonly used in various applications, including but not limited to: - AC/DC power supplies - LED lighting - Home appliances - Industrial equipment - Consumer electronics
Detailed and Complete Alternative Models
Some alternative models that can be considered as alternatives to the LNK6774V are: - LNK6774VG - LNK6774VR - LNK6774VT - LNK6774VX
These models offer similar functionality and characteristics, providing flexibility in design choices.
In conclusion, the LNK6774V is a highly efficient power management IC designed for various applications. Its primary-side regulation control, comprehensive protection features, and compact package make it a reliable choice for power conversion needs.
רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של LNK6774V בפתרונות טכניים
Sure! Here are 10 common questions and answers related to the application of LNK6774V in technical solutions:
Q: What is LNK6774V? A: LNK6774V is a highly integrated, offline switcher IC designed for low-power applications.
Q: What are the key features of LNK6774V? A: The key features of LNK6774V include primary-side regulation, high efficiency, accurate constant voltage (CV) and constant current (CC) control, and built-in protection features.
Q: What are the typical applications of LNK6774V? A: LNK6774V is commonly used in applications such as LED lighting, smart home devices, industrial controls, and consumer electronics.
Q: How does LNK6774V achieve primary-side regulation? A: LNK6774V uses a proprietary technology called EcoSmart™ to achieve primary-side regulation, eliminating the need for an optocoupler or secondary-side feedback circuitry.
Q: Can LNK6774V support dimming functionality for LED lighting applications? A: Yes, LNK6774V can support dimming functionality by using external components such as a PWM controller or a potentiometer.
Q: Does LNK6774V have built-in protection features? A: Yes, LNK6774V has built-in protection features including over-temperature protection (OTP), output short-circuit protection (SCP), and output over-voltage protection (OVP).
Q: What is the efficiency range of LNK6774V? A: LNK6774V offers high efficiency ranging from 80% to 90%, depending on the specific application and operating conditions.
Q: Can LNK6774V operate in a wide input voltage range? A: Yes, LNK6774V can operate in a wide input voltage range typically from 85VAC to 265VAC.
Q: Is LNK6774V compliant with safety standards and regulations? A: Yes, LNK6774V is designed to meet various safety standards such as UL, CE, and IEC, ensuring safe operation in different regions.
Q: Are evaluation boards or reference designs available for LNK6774V? A: Yes, Power Integrations provides evaluation boards and reference designs for LNK6774V, which can help engineers quickly prototype and implement their technical solutions.
Please note that the answers provided here are general and may vary depending on specific application requirements and design considerations.