Texas Instruments

LM5021NA-1/NOPB  

AC DC Converters, Offline Switches

LM5021NA-1/NOPB Description

The LM5021NA-1/NOPB is a versatile offline switcher controller designed for a variety of power management applications. Manufactured by Texas Instruments, this device is part of the Power Management Integrated Circuit (PMIC) category and is known for its robust performance and reliability. The LM5021NA-1/NOPB is classified under ECCN EAR99 and is REACH unaffected, ensuring compliance with international regulatory standards. It is available in a through-hole mounting type, making it suitable for applications requiring high power density and thermal performance.

LM5021NA-1/NOPB Features

The LM5021NA-1/NOPB offers several advanced features that enhance its performance and flexibility. Key features include:

• Topology: Supports both Flyback and Forward topologies, providing designers with the flexibility to choose the most suitable configuration for their application.
• Frequency Control: The device offers frequency control, allowing for precise regulation of the switching frequency up to 1 MHz. This high-frequency operation enables the use of smaller inductors and capacitors, reducing the overall size of the power supply.
• Soft Start and Synchronization: The LM5021NA-1/NOPB includes soft start functionality to prevent inrush currents during startup and synchronization capabilities to ensure stable operation in multi-converter systems.
• Fault Protection: Comprehensive fault protection mechanisms such as current limiting and overload protection ensure the device's longevity and reliability under various operating conditions.
• Wide Input Voltage Range: The device operates from a supply voltage range of 8V to 30V, making it suitable for a wide range of input voltage applications.
• High Duty Cycle: With a duty cycle of up to 80%, the LM5021NA-1/NOPB can achieve high efficiency in power conversion.
• Output Isolation: The device provides isolated output, ensuring safety and reliability in applications where galvanic isolation is required.
• Moisture Sensitivity Level: The LM5021NA-1/NOPB has an MSL of 1 (Unlimited), making it suitable for storage and handling in various environmental conditions.
• Compliance: The device is RoHS3 compliant, ensuring it meets the latest environmental and safety standards.

LM5021NA-1/NOPB Applications

The LM5021NA-1/NOPB is ideal for a variety of power management applications, including:

• Adaptive Voltage Scaling (AVS): The device's ability to operate at high frequencies and provide precise voltage regulation makes it suitable for adaptive voltage scaling applications where power efficiency is critical.
• Isolated Power Supplies: The isolated output feature makes it ideal for applications requiring galvanic isolation, such as medical equipment and industrial control systems.
• High-Density Power Supplies: The high-frequency operation allows for the design of compact power supplies, making it suitable for space-constrained applications.
• Telecommunications: The LM5021NA-1/NOPB can be used in telecom infrastructure to provide reliable power conversion with minimal footprint.
• Consumer Electronics: The device's wide input voltage range and high efficiency make it suitable for consumer electronics where power efficiency and reliability are paramount.

Conclusion of LM5021NA-1/NOPB

The LM5021NA-1/NOPB from Texas Instruments is a highly versatile and reliable offline switcher controller that offers a range of advanced features and benefits. Its ability to support multiple topologies, high-frequency operation, and comprehensive fault protection makes it an excellent choice for a wide range of power management applications. The device's compliance with international regulatory standards and its RoHS3 compliance further enhance its appeal. The LM5021NA-1/NOPB is particularly well-suited for applications requiring high efficiency, compact design, and reliable performance, making it a standout choice in the power management industry.

LM5021NA-1/NOPB Documents

Download datasheets and manufacturer documentation for LM5021NA-1/NOPB

PCN Assembly/Origin :

Assembly Site 17/Dec/2021      

Datasheets :

LM5021MMX-2      

Reference Design Library :

RD-166: 2.5W, 5V @ 500mA, 100 ~ 240VAC      

Design Resources :

Load Detecting Pwr Supply RD-166      

PCN Obsolescence/ EOL :

EOL 27/Oct/2023