Texas Instruments

UC3524D  

DC DC Switching Controllers

UC3524D Description

The UC3524D is a versatile and high-performance DC-DC switching controller designed by Texas Instruments. This device is specifically engineered to provide efficient power management solutions in a wide range of applications. The UC3524D features a transistor driver output type with a positive output configuration, making it suitable for driving power transistors in switching power supplies. It operates within a supply voltage range of 8V to 40V, ensuring compatibility with various power supply systems. The device is capable of switching frequencies up to 300kHz, which allows for high efficiency and compact design in power conversion circuits.

The UC3524D is housed in a surface-mount package, specifically a tube, which enhances its durability and ease of integration into modern electronic assemblies. It is designed for an operating temperature range of 0°C to 70°C, making it suitable for use in both standard and moderately elevated temperature environments. The device is REACH unaffected and RoHS3 compliant, ensuring it meets the latest environmental and safety standards in the electronics industry. Additionally, the UC3524D has a moisture sensitivity level (MSL) of 2, with a shelf life of 1 year, which is ideal for manufacturing processes that require extended storage times.

UC3524D Features

The UC3524D offers a comprehensive set of control features that enhance its performance and flexibility. These features include current limit, enable, frequency control, and ramp functions, which provide precise control over the switching process and ensure stable operation under varying load conditions. The device supports a maximum duty cycle of 45%, which is optimized for high-efficiency power conversion. It also features two outputs and a single output phase, allowing for versatile circuit design and implementation.

One of the unique advantages of the UC3524D is its ability to operate without a synchronous rectifier or clock synchronization, which simplifies the design and reduces the overall component count in power supply circuits. This feature is particularly beneficial in applications where simplicity and cost-effectiveness are critical. The UC3524D is also classified under ECCN EAR99 and HTSUS 8542.39.0001, ensuring compliance with international trade regulations.

UC3524D Applications

The UC3524D is ideal for a variety of applications where efficient power conversion and control are required. It is particularly well-suited for use in DC-DC converters, where its high switching frequency and precise control features enable the design of compact and high-efficiency power supplies. The device's wide operating voltage range and robust performance make it suitable for applications in telecommunications, consumer electronics, and industrial power supplies.

In telecommunications, the UC3524D can be used to power base stations and other critical infrastructure components, ensuring reliable and efficient power delivery. In consumer electronics, it can be integrated into devices such as laptops, tablets, and smartphones, where space and efficiency are paramount. Industrial applications include power supplies for manufacturing equipment, robotics, and automation systems, where device the's durability and performance are essential.

Conclusion of UC3524D

The UC3524D from Texas Instruments is a highly capable DC-DC switching controller that offers a balance of performance, flexibility, and compliance with industry standards. Its wide range of control features, robust operating specifications, and compatibility with various power supply systems make it a versatile solution for modern power management needs. Whether used in telecommunications, consumer electronics, or industrial applications, the UC3524D provides reliable and efficient power conversion, making it an ideal choice for engineers and designers seeking to optimize their power supply designs.

UC3524D Documents

Download datasheets and manufacturer documentation for UC3524D

Datasheets :

UC1524, UC2524, UC3524      

PCN Design/Specification :

Mult Devices Font 21/Apr/2018       Design 25/Feb/2022