Cirrus Logic

CS1501-FSZ

CS1501-FSZ Description

The CS1501-FSZ is a Power Factor Correction (PFC) controller designed for high-efficiency power supply applications. Manufactured by Cirrus Logic Inc., this IC operates in both Critical Conduction Mode (CRM) and Discontinuous Conduction Mode (DCM), providing flexibility in design and optimization for various power supply requirements. The device features a switching frequency of 70kHz, ensuring efficient power conversion while minimizing electromagnetic interference (EMI). It supports a supply voltage range of 7.9V to 17V, making it suitable for a wide range of input voltage conditions.

The CS1501-FSZ is housed in an 8SOIC package and is available in a tube packaging format, facilitating easy integration into surface-mount designs. With a low startup current of 68 µA, it ensures minimal power consumption during the initial power-up phase. The product is classified under ECCN EAR99 and HTSUS 8542.39.0001, indicating compliance with international trade regulations. Additionally, it is REACH unaffected, ensuring compliance with environmental and chemical regulations.

Despite its obsolete status, the CS1501-FSZ remains a reliable choice for legacy systems and applications where its specific features are required. It has a moisture sensitivity level (MSL) of 2, allowing for a storage period of up to one year without additional handling precautions.

CS1501-FSZ Features

• Dual-Mode Operation: The CS1501-FSZ operates in both Critical Conduction Mode (CRM) and Discontinuous Conduction Mode (DCM), offering flexibility in power supply design and optimization for different load conditions.
• Efficient Power Conversion: With a switching frequency of 70kHz, the device ensures high efficiency and minimal EMI, making it suitable for applications where compact size and high performance are critical.
• Wide Input Voltage Range: The IC supports a supply voltage range of 7.9V to 17V, providing robustness and reliability across various input voltage conditions.
• Low Startup Current: A startup current of 68 µA minimizes power consumption during the initial power-up phase, contributing to overall system efficiency.
• Surface-Mount Compatibility: The 8SOIC package and tube packaging format facilitate easy integration into surface-mount designs, ensuring compatibility with modern manufacturing processes.
• Regulatory Compliance: Classified under ECCN EAR99 and HTSUS 8542.39.0001, the CS1501-FSZ adheres to international trade regulations. Additionally, it is REACH unaffected, ensuring compliance with environmental and chemical standards.
• Moisture Sensitivity Level: An MSL of 2 allows for a storage period of up to one year without additional handling precautions, providing flexibility in inventory management.

CS1501-FSZ Applications

The CS1501-FSZ is ideal for a variety of power supply applications, particularly those requiring high efficiency and flexibility in operating modes. Specific use cases include:

• Switching Power Supplies: The dual-mode operation and high switching frequency make it suitable for compact and efficient power supplies used in consumer electronics, industrial equipment, and telecommunications infrastructure.
• LED Lighting Systems: The wide input voltage range and low startup current ensure reliable operation in LED lighting applications, where consistent power delivery and minimal power consumption are essential.
• Renewable Energy Systems: The device's robustness and efficiency make it a reliable choice for power conversion in renewable energy systems, such as solar inverters and wind turbines, where high efficiency and reliability are paramount.
• Telecommunications Equipment: The CS1501-FSZ's compliance with international trade regulations and environmental standards make it suitable for use in telecommunications equipment, where regulatory adherence is crucial.

Conclusion of CS1501-FSZ

The CS1501-FSZ, manufactured by Cirrus Logic Inc., is a versatile PFC controller designed for high-efficiency power supply applications. Its dual-mode operation, wide input voltage range, and low startup current make it an ideal choice for a variety of applications, including switching power supplies, LED lighting systems, renewable energy systems, and telecommunications equipment. Despite its obsolete status, the CS1501-FSZ remains a reliable option for legacy systems and applications where its specific features are required. Its regulatory compliance and moisture sensitivity level further enhance its suitability for modern manufacturing and inventory management processes.