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STR3A161HD

STR3A161HD Description

The STR3A161HD is an offline switch flyback IC designed for efficient power management applications. Manufactured by Sanken Electric Co., Ltd., this device belongs to the STR3A100 series and is housed in a through-hole 8DIP package. It is classified under the Power Management (PMIC) category and is RoHS compliant, ensuring environmental sustainability. The STR3A161HD features a breakdown voltage of 700V and a power output of 36W, making it suitable for demanding applications requiring high voltage and power handling capabilities.

STR3A161HD Features

• Topology: Flyback topology ensures efficient power conversion and isolation between the primary and secondary circuits.
• Mounting Type: Through-hole mounting provides robust mechanical stability and is ideal for applications requiring high reliability.
• Voltage - Breakdown: A high breakdown voltage of 700V allows the device to operate in high-voltage environments without failure.
• Internal Switch(s): The inclusion of an internal switch simplifies the design and reduces the number of external components required.
• Fault Protection: Comprehensive fault protection mechanisms, including current limiting, overload, over-temperature, and over-voltage protection, enhance the reliability and safety of the device.
• Frequency - Switching: A switching frequency of 100kHz ensures efficient power conversion and minimal energy loss.
• Voltage - Start Up: A start-up voltage of 15.3V ensures reliable operation under varying input conditions.
• Duty Cycle: An 83% duty cycle maximizes the efficiency of power delivery.
• Voltage - Supply (Vcc/Vdd): A wide supply voltage range of 8.1V to 32V provides flexibility in power source selection.
• Output Isolation: Isolated output ensures safety and reliability in applications where electrical isolation is critical.
• Moisture Sensitivity Level (MSL): MSL 1 (unlimited) indicates that the device is not sensitive to moisture, reducing the risk of damage during storage and handling.

STR3A161HD Applications

The STR3A161HD is ideal for a variety of applications where high voltage and power handling capabilities are required. Its robust design and comprehensive fault protection make it suitable for:

• Adaptive Power Supplies: Efficiently converts input power to the required output voltage and current, ensuring reliable operation.
• Chargers: Provides a stable and safe charging solution for various electronic devices.
• Power Adapters: Delivers consistent power to external devices, ensuring optimal performance and longevity.
• Lighting Systems: Ensures stable power delivery to LED and other lighting systems, enhancing their efficiency and lifespan.
• Industrial Equipment: Provides reliable power management in harsh industrial environments where high voltage and power handling are critical.

Conclusion of STR3A161HD

The STR3A161HD is a versatile and reliable offline switch flyback IC designed for high-voltage and power-intensive applications. Its comprehensive feature set, including high breakdown voltage, internal switch, and robust fault protection, makes it an excellent choice for power management solutions. The device's wide supply voltage range, isolated output, and RoHS compliance further enhance its suitability for a variety of applications. While the product is currently marked as obsolete, its technical specifications and performance benefits make it a valuable component for existing designs and legacy systems.