Texas Instruments

LM5185PWPR  

DC DC Switching Controllers

LM5185PWPR Description

The LM5185PWPR is a high-performance DC-DC switching controller designed by Texas Instruments, specifically tailored for applications requiring a reliable and efficient power conversion solution. This integrated circuit (IC) features a synchronous rectifier and is configured as a transistor driver with a positive output configuration. It operates within a wide input voltage range of 4.5V to 100V, making it suitable for a variety of power supply applications.

The LM5185PWPR employs a flyback topology, which is ideal for isolated power supplies and allows for high efficiency and compact design. The controller supports a switching frequency range of 11kHz to 350kHz, providing flexibility in design and optimization for different power levels and output requirements. The device is packaged in a surface-mount format, specifically in a tape and reel (TR) configuration, which is perfect for automated assembly processes and high-volume production.

LM5185PWPR Features

• Synchronous Rectifier: The LM5185PWPR includes a synchronous rectifier, which significantly improves efficiency by reducing power losses compared to traditional diode rectification.
• Transistor Driver: The output type is designed as a transistor driver, making it suitable for driving external power transistors and ensuring robust performance.
• Positive Output Configuration: The positive output configuration ensures compatibility with a wide range of applications requiring a positive voltage rail.
• Wide Input Voltage Range: With an input voltage range of 4.5V to 100V, the LM5185PWPR can handle a variety of input sources, from low-voltage batteries to high-voltage industrial supplies.
• Clock Synchronization: The device supports clock synchronization, which is beneficial for reducing electromagnetic interference (EMI) and improving overall system performance.
• Current Limit Control: The LM5185PWPR includes current limit control features, ensuring safe operation and protection against overcurrent conditions.
• Single Output Phase: The single output phase simplifies the design and reduces complexity, making it easier to implement in various power supply designs.

LM5185PWPR Applications

The LM5185PWPR is ideal for a range of applications where high efficiency, reliability, and compact design are critical. Some specific use cases include:

• Telecommunications: Powering base stations and network equipment where high efficiency and reliability are paramount.
• Industrial Equipment: Providing power to industrial machinery and control systems that require a wide input voltage range and high efficiency.
• Automotive Electronics: Suitable for automotive applications where the IC can handle the wide voltage swings and demanding operating conditions.
• Consumer Electronics: Used in power supplies for consumer devices such as laptops, gaming consoles, and other high-power electronics.

Conclusion of LM5185PWPR

The LM5185PWPR from Texas Instruments stands out as a versatile and efficient DC-DC switching controller. Its wide input voltage range, synchronous rectification, and flexible switching frequency make it an excellent choice for a variety of power supply applications. The inclusion of current limit control and clock synchronization further enhances its performance and reliability. Whether used in telecommunications, industrial equipment, automotive electronics, or consumer devices, the LM5185PWPR offers a robust and efficient solution for power conversion needs.

LM5185PWPR Documents

Download datasheets and manufacturer documentation for LM5185PWPR

PCN :

Product Change Notification 2024-06-14 (PDF)