Texas Instruments

UC3525AJ  

DC DC Switching Controllers

UC3525AJ Description

The UC3525AJ is a regulating pulse width modulator (PWM) designed for power management applications. Manufactured by Texas Instruments, this device is part of the Power Management Integrated Circuit (PMIC) category and is housed in a tube package. It features a transistor driver output type with a positive output configuration, making it suitable for a variety of power conversion and control applications.

UC3525AJ Features

• Operating Temperature: The UC3525AJ operates within a temperature range of 0°C to 70°C (TA), ensuring reliable performance in various environmental conditions.
• Synchronous Rectifier: Equipped with a synchronous rectifier, the UC3525AJ enhances efficiency and reduces power loss, making it ideal for high-efficiency power conversion systems.
• Output Type and Configuration: The device provides a transistor driver output with a positive configuration, offering flexibility in circuit design.
• Mounting Type: Through-hole mounting ensures robust mechanical stability and ease of integration into printed circuit boards.
• Product Status: The UC3525AJ is an active product, indicating ongoing support and availability from Texas Instruments.
• Clock Sync: The ability to synchronize clocks ensures precise timing control in multi-phase or multi-device systems.
• Number of Outputs: With two outputs, the UC3525AJ can drive multiple power stages or control multiple devices simultaneously.
• Control Features: The device includes enable, frequency control, and soft start features, providing comprehensive control over the power conversion process.
• Duty Cycle (Max): A maximum duty cycle of 49% allows for precise control of power delivery and minimizes switching losses.
• Output Phases: Single-phase output simplifies design and reduces complexity in power management systems.
• Frequency - Switching: The UC3525AJ supports a wide switching frequency range of 100Hz to 400kHz, enabling optimization for different power levels and efficiency requirements.
• REACH Status: The UC3525AJ is REACH unaffected, ensuring compliance with stringent chemical regulations.
• Voltage - Supply (Vcc/Vdd): The device operates with a supply voltage range of 8V to 35V, providing compatibility with a wide range of power sources.
• RoHS Status: ROHS3 compliant, the UC3525AJ meets environmental standards for restricted hazardous substances.
• Moisture Sensitivity Level (MSL): Not applicable, indicating that the device is not sensitive to moisture, enhancing its reliability in various operating conditions.

UC3525AJ Applications

The UC3525AJ is ideal for a range of power management applications, including:

• Power Supplies: Suitable for designing efficient and reliable power supplies for consumer electronics, industrial equipment, and telecommunications infrastructure.
• DC-DC Converters: The device's wide switching frequency range and synchronous rectification make it an excellent choice for high-efficiency DC-DC converters.
• Motor Control: The enable and frequency control features allow precise control of motor speed and torque, making it suitable for motor control applications.
• Battery Chargers: The UC3525AJ can be used in battery charging circuits to regulate the charging process and ensure safe and efficient battery management.
• Renewable Energy Systems: The device's ability to operate over a wide voltage range and its efficiency features make it suitable for renewable energy applications, such as solar inverters and wind turbines.

Conclusion of UC3525AJ

The UC3525AJ from Texas Instruments is a versatile and efficient regulating pulse width modulator designed for a wide range of power management applications. Its comprehensive feature set, including synchronous rectification, multiple control features, and a wide operating voltage range, makes it a reliable choice for engineers looking to optimize power conversion efficiency and system performance. The UC3525AJ's compliance with environmental standards and its robust mechanical design further enhance its appeal for modern power management solutions.

UC3525AJ Documents

Download datasheets and manufacturer documentation for UC3525AJ