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STR-W6253D

STR-W6253D Description

The STR-W6253D is a high-performance offline switch IC designed for AC-DC converter applications. Manufactured by Sanken Electric USA Inc., this device features a flyback topology and is housed in a through-hole TO220F-6L package. It is RoHS compliant and has a moisture sensitivity level (MSL) of 1, making it suitable for a wide range of industrial and consumer electronics applications. The STR-W6253D offers a maximum power output of 90 watts and operates with a breakdown voltage of 650V, ensuring robust performance in various electrical environments.

STR-W6253D Features

• Topology: Flyback topology ensures efficient power conversion and isolation between the primary and secondary sides.
• Mounting Type: Through-hole mounting provides a secure and reliable connection, ideal for applications requiring high mechanical stability.
• Voltage - Breakdown: 650V breakdown voltage offers enhanced protection against voltage spikes and transient conditions.
• Internal Switches: The presence of an internal switch simplifies circuit design and reduces component count, leading to more compact and cost-effective solutions.
• Power Output: Capable of delivering up to 90 watts, the STR-W6253D is suitable for a variety of high-power applications.
• Fault Protection: Comprehensive fault protection mechanisms, including current limiting, overload, over-temperature, and over-voltage protection, ensure reliable operation and protect against potential damage.
• Switching Frequency: Operates within a frequency range of 60kHz to 74kHz, balancing efficiency and electromagnetic interference (EMI) considerations.
• Start-Up Voltage: A start-up voltage of 15.5V ensures reliable activation under various input conditions.
• Supply Voltage Range: The wide supply voltage range of 8.9V to 18V accommodates a variety of input sources, enhancing the device's versatility.
• Duty Cycle: A maximum duty cycle of 75% allows for efficient power transfer and control.
• Output Isolation: Isolated output ensures safety and reliability in applications where galvanic isolation is required.
• Package Type: The tube packaging format facilitates easy handling and storage during manufacturing processes.

STR-W6253D Applications

The STR-W6253D is ideal for a range of applications where high efficiency, reliability, and robustness are critical. Key applications include:

• Power Supplies: Suitable for consumer and industrial power supplies, providing stable and efficient power conversion.
• Adapters and Chargers: Ideal for high-power adapters and chargers, ensuring reliable operation and protection against electrical faults.
• Telecommunications: Used in telecom equipment where isolated power supplies are necessary for safety and performance.
• Medical Devices: Applicable in medical equipment requiring isolated power sources to ensure patient safety and equipment reliability.
• Industrial Controls: Suitable for industrial control systems where high power output and fault protection are essential.

Conclusion of STR-W6253D

The STR-W6253D is a versatile and reliable offline switch IC designed for high-power AC-DC conversion applications. With its flyback topology, comprehensive fault protection, and robust design features, it offers significant advantages over similar models. The device's wide operating voltage range, high breakdown voltage, and internal switch capabilities make it an ideal choice for a variety of applications, from power supplies and adapters to medical and industrial equipment. Despite being marked as obsolete, the STR-W6253D remains a valuable component for engineers and designers seeking a reliable and efficient power conversion solution.