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STR2W153D

STR2W153D Description

The STR2W153D is a Flyback topology Power Management Integrated Circuit (PMIC) designed for offline switch applications. Manufactured by Sanken Electric USA Inc., this device is part of the STR2W100D series and is housed in a Through Hole TO220F-6L package. The STR2W153D features a breakdown voltage of 650V and a maximum power output of 90 watts. It is RoHS compliant and has a moisture sensitivity level (MSL) of 1, indicating unlimited storage conditions.

STR2W153D Features

• Topology and Configuration: The STR2W153D employs a Flyback topology, which is ideal for applications requiring isolated output. It features an internal switch, simplifying the design process and reducing the need for external components.
• Voltage and Power Specifications: With a breakdown voltage of 650V and a supply voltage range of 8.1V to 32V, the STR2W153D is suitable for a wide range of input voltage conditions. It can deliver up to 90 watts of power, making it a robust solution for high-power applications.
• Fault Protection: The device includes comprehensive fault protection mechanisms such as current limiting, overload protection, over-temperature protection, and over-voltage protection. These features enhance the reliability and safety of the power supply system.
• Switching Frequency and Duty Cycle: The STR2W153D operates within a switching frequency range of 60kHz to 74kHz, with a maximum duty cycle of 74%. This frequency range ensures efficient power conversion and minimal electromagnetic interference (EMI).
• Start-Up Voltage: The device requires a start-up voltage of 15.3V, ensuring reliable operation under various input conditions.
• Output Isolation: The STR2W153D provides isolated output, which is crucial for applications where electrical isolation between the input and output is necessary to prevent ground loops and ensure safety.

STR2W153D Applications

The STR2W153D is well-suited for a variety of applications due to its high power capability, robust fault protection, and isolated output. Some specific use cases include:

• Power Supplies: Ideal for designing power supplies for consumer electronics, industrial equipment, and medical devices where high efficiency and reliability are paramount.
• Adapters and Chargers: Suitable for creating efficient and safe power adapters and chargers for various electronic devices.
• Telecommunications: Can be used in telecom infrastructure to provide stable and isolated power to critical components.
• Industrial Control Systems: The STR2W153D's robust design and fault protection make it suitable for industrial control systems where reliability and safety are critical.

Conclusion of STR2W153D

The STR2W153D is a versatile and reliable Power Management IC designed for offline switch applications. Its Flyback topology, high power capability, and comprehensive fault protection make it an excellent choice for a wide range of applications. Despite being marked as obsolete, the STR2W153D remains a valuable component for engineers and designers seeking a robust and efficient power solution. Its RoHS compliance and moisture sensitivity level of 1 ensure that it meets environmental standards and can be stored without degradation.