LNK6774K-TL

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LNK6774K-TL

IC OFFLINE SWITCH FLYBACK 12ESOP

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Thông số kỹ thuật

Series LinkSwitch™-HP
Part Status Active
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 725V
Topology Flyback
Duty Cycle 64%
Frequency - Switching 120kHz ~ 136kHz
Power (Watts) 39 W
Fault Protection Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit
Operating Temperature -40°C ~ 150°C (TJ)
Package / Case 12-BESOP (0.350", 8.89mm Width), 11 Leads, Exposed Pad
Supplier Device Package 12-ESOP
Mounting Type Surface Mount
Base Product Number LNK6774

Tổng quan

Description

LNK6774K-TL is a specific model of an integrated circuit (IC) produced by Texas Instruments, primarily used as a linear voltage regulator. It is designed to provide a stable output voltage and current for various electronic applications. The "K" in its designation typically indicates a specific package style, while "TL" denotes that it is part of Texas Instruments' "low-power" series, emphasizing energy efficiency.
The LNK6774K-TL is capable of delivering up to 1.5 A of output current and is often used in power management solutions for consumer electronics, industrial equipment, and automotive applications. It features built-in protections such as thermal shutdown and overcurrent protection, ensuring reliable operation. Its compact design and high efficiency make it suitable for space-constrained environments.
For designers, understanding the electrical characteristics, application circuits, and thermal performance is crucial for optimal implementation in their projects. Detailed specifications and application notes can usually be found in the manufacturer's datasheet.

Features

The LNK6774K-TL is a part of the LinkSwitch™-TN family of power management ICs designed for high-efficiency, offline flyback power supplies. Key features include:
1. Integrated High-Voltage MOSFET: It contains a built-in 700V MOSFET, optimizing efficiency and minimizing external component count.
2. Constant Current Regulation: Ensures stable output current for applications like LED drivers, enhancing performance in varying load conditions.
3. Low Start-Up Current: Reduces power consumption during the start-up phase, improving overall energy efficiency.
4. Wide Input Voltage Range: Supports a broad input voltage range, making it suitable for various applications.
5. Built-in Thermal Protection: Protects against overheating, ensuring reliability and longevity.
6. Cycle-by-Cycle Current Limiting: Safeguards the circuit against overcurrent conditions.
7. Frequency Jittering: Reduces electromagnetic interference (EMI) for compliance with regulatory standards.
Overall, the LNK6774K-TL is ideal for compact, efficient, and reliable power supply designs in consumer electronics, industrial applications, and LED lighting.

Package

The LNK6774K-TL is packaged in a TO-263 (DPAK) surface-mount package. This type of package is designed for efficient thermal performance and is suitable for high-power applications.

Pinout

The LNK6774K-TL is a power integrated circuit (IC) from the LinkSwitch family designed for off-line switch mode power supplies. It comes in a 7-pin package. The pin configuration and functions are as follows:
1. DRAIN: This pin connects to the drain of the internal power MOSFET.
2. GND: Ground reference for the IC.
3. SOURCE: Source of the internal MOSFET; connects to the output capacitor and feedback network.
4. VDD: Supply voltage pin for the IC; provides power to operate the IC.
5. CS (Current Sense): Monitors the current flowing through the MOSFET to provide overcurrent protection.
6. COMP (Compensation): Connects to an external capacitor and resistor network for loop compensation.
7. FB (Feedback): Feedback pin for voltage regulation; connects to the feedback network to regulate output voltage.
This IC is commonly used in various applications, including adapters and chargers, due to its high efficiency and compact size.

Manufacturer

The LNK6774K-TL is manufactured by Power Integrations, Inc. Power Integrations is a semiconductor company that specializes in designing and manufacturing high-performance electronic components for power management applications. Their products are widely used in various markets, including consumer electronics, industrial applications, and renewable energy systems. The company is known for its innovative technologies that provide energy efficiency and reliability in power supply designs.

Application

LNK6774K-TL is a high-voltage, isolated switcher designed for applications in power supply systems. Its primary use cases include LED lighting, power adapters, and industrial power supplies. It is ideal for low-power isolated applications, enabling efficient energy conversion and providing safety features like overvoltage and overcurrent protection.

Equivalent

The LNK6774K-TL is a part of the LinkSwitch-TN series, primarily used for off-line switching power supplies. Equivalent products include the LNK6764K-TL, LNK6765K-TL, and LNK6784K-TL, which offer similar electrical characteristics but with variations in output power and voltage ratings. Always verify specific application requirements and datasheets for compatibility.

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