Texas Instruments

5962-8670409VPA  

DC DC Switching Controllers

5962-8670409VPA Description

The 5962-8670409VPA, also known as the UC1843A, is a highly versatile and efficient DC-DC switching controller designed by Texas Instruments. This controller is specifically engineered to meet the demands of high-performance power conversion applications. It features a current mode PWM control scheme, providing excellent line and load regulation, as well as fast transient response. The UC1843A is designed to operate with a wide input voltage range of 12V to 25V, making it suitable for a variety of power supply designs.

5962-8670409VPA Features

• Output Type: The UC1843A is a transistor driver with a positive output configuration, ideal for driving external power MOSFETs or BJTs.
• Topology: It supports multiple topologies including Boost, Flyback, and Forward converters, offering flexibility in power supply design.
• Frequency Control: The controller provides frequency control, allowing designers to optimize the switching frequency for efficiency and performance. It operates at a switching frequency of 500kHz, ensuring high efficiency and reduced component size.
• Duty Cycle: With a maximum duty cycle of 96%, the UC1843A can achieve high output voltage levels, making it suitable for applications requiring high voltage conversion.
• Mounting Type: The through-hole mounting type ensures robust mechanical stability and is well-suited for industrial and high-reliability applications.
• Control Features: The UC1843A includes essential control features such as frequency control, which allows for precise regulation of the switching frequency to meet specific application requirements.
• Output Phases: The controller is designed for single-phase operation, simplifying the design and reducing complexity.
• ECCN and HTSUS: Classified under ECCN EAR99 and HTSUS 8542.39.0001, the UC1843A complies with international export regulations and customs classifications.
• Package: Available in bulk packaging, the UC1843A is suitable for high-volume production and inventory management.

5962-8670409VPA Applications

The UC1843A is ideal for a wide range of applications due to its flexibility and robust performance. Key applications include:

• Power Supplies: Suitable for designing high-efficiency power supplies for various electronic devices, including computers, telecommunications equipment, and industrial control systems.
• DC-DC Converters: Ideal for use in DC-DC converter modules where high efficiency and compact size are critical.
• Battery Chargers: The UC1843A can be used in battery charging circuits to provide efficient and reliable charging solutions.
• LED Drivers: It can be employed in LED driver designs to control the current and voltage for LED lighting systems.
• Industrial Equipment: The robust through-hole mounting and wide operating voltage range make it suitable for industrial applications where reliability and durability are paramount.

Conclusion of 5962-8670409VPA

The 5962-8670409VPA (UC1843A) from Texas Instruments stands out as a reliable and versatile DC-DC switching controller. Its wide input voltage range, multiple topology support, and frequency control features make it an excellent choice for a variety of power conversion applications. The high maximum duty cycle and single-phase operation simplify design while maintaining high performance. Whether used in power supplies, DC-DC converters, or industrial equipment, the UC1843A offers a robust and efficient solution for power management. Its compliance with international regulations and availability in bulk packaging further enhance its appeal for both small-scale and large-scale production needs.

5962-8670409VPA Documents

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Datasheets :

5962-8670406VPA Datasheet