onsemi

CS51221ED16  

DC DC Switching Controllers

CS51221ED16 Description

The CS51221ED16 is an integrated circuit designed for power management applications, specifically tailored for forward converter topologies. Manufactured by onsemi, this IC is a transistor driver with a positive output configuration that is capable of isolation. It operates within a supply voltage range of 3.8V to 15V and is designed to handle switching frequencies up to 1MHz. The CS51221ED16 is housed in a surface-mount package and is available in a tube format. Despite being marked as obsolete, it remains a reliable choice for specific power management needs.

CS51221ED16 Features

• Output Type: Transistor Driver
• Output Configuration: Positive, Isolation Capable
• Product Status: Obsolete
• Frequency - Switching: 1MHz
• REACH Status: REACH Unaffected
• Voltage - Supply (Vcc/Vdd): 3.8V ~ 15V
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Synchronous Rectifier: No
• ECCN: EAR99
• Topology: Forward Converter
• Mounting Type: Surface Mount
• Clock Sync: Yes
• Number of Outputs: 1
• Control Features: Current Limit, Frequency Control, Ramp, Soft Start
• Duty Cycle (Max): 85%
• Output Phases: 1
• HTSUS: 8542.31.0001
• Package: Tube
• Base Product Number: CS51221

The CS51221ED16 offers several unique features that set it apart from similar models. Its ability to operate within a wide supply voltage range and handle high switching frequencies makes it suitable for a variety of power management applications. The inclusion of control features such as current limit, frequency control, ramp, and soft start ensures stable and efficient operation. Additionally, its positive output configuration and isolation capability provide enhanced flexibility and safety in circuit design.

CS51221ED16 Applications

The CS51221ED16 is ideal for applications requiring efficient power conversion and control. Its forward converter topology makes it suitable for use in power supplies, telecom equipment, and industrial electronics. The IC's robust control features and wide operating voltage range make it a reliable choice for applications where stability and efficiency are paramount. Specific use cases include:

• Power Supplies: Ideal for designing efficient and reliable power supplies for various electronic devices.
• Telecom Equipment: Suitable for use in telecom infrastructure where high-frequency switching and stable power management are required.
• Industrial Electronics: Applicable in industrial applications where robust power management and control are essential.

Conclusion of CS51221ED16

The CS51221ED16, despite being marked as obsolete, remains a valuable component for specific power management needs. Its wide operating voltage range, high switching frequency, and robust control features make it a reliable choice for forward converter applications. The inclusion of current limit, frequency control, ramp, and soft start features ensures stable and efficient operation. While newer models may offer more advanced features, the CS51221ED16 continues to be a viable option for applications where its unique specifications and capabilities are required.

CS51221ED16 Documents

Download datasheets and manufacturer documentation for CS51221ED16