onsemi

STK621-140B-E

STK621-140B-E Description

The STK621-140B-E is a half bridge driver IC designed for high-performance power management applications. Manufactured by onsemi, this device is part of the Power Management (PMIC) category and is housed in a through-hole 23SIP package. It features a half bridge output configuration with a peak output current of 15A and a maximum load voltage of 400V. The STK621-140B-E is designed to operate within a supply voltage range of 12.5V to 17.5V, making it suitable for applications that require robust power handling capabilities.

This IC is specifically designed for inductive load types, such as AC motors, and offers a range of advanced features to enhance its performance and reliability. These features include auto restart, a bootstrap circuit, and a status flag, which provide enhanced control and monitoring capabilities. The device also includes comprehensive fault protection mechanisms, such as current limiting, over-temperature protection, and under-voltage lockout (UVLO), ensuring safe and reliable operation under various conditions.

STK621-140B-E Features

The STK621-140B-E stands out due to its unique combination of features and performance benefits:

• Half Bridge Configuration: The half bridge output configuration allows for efficient power delivery and control, making it ideal for applications requiring high current handling.
• High Current Capability: With a peak output current of 15A and a per-channel output current of 10A, the STK621-140B-E can handle significant power loads, ensuring reliable performance in demanding applications.
• Wide Supply Voltage Range: The device operates within a supply range voltage of 12.5V to 17.5V, providing flexibility and compatibility with various power supply systems.
• Advanced Protection Features: Comprehensive fault protection mechanisms, including current limiting, over-temperature protection, and UVLO, safeguard the device and connected components from damage.
• Bootstrap Circuit: The built-in bootstrap circuit ensures efficient gate drive for the high-side switch, enhancing overall system performance.
• Status Flag and Auto Restart: These features provide enhanced control and monitoring capabilities, allowing for more sophisticated system management.
• Moisture Sensitivity Level (MSL) 1: The STK621-140B-E is rated for unlimited exposure to moisture, making it suitable for a wide range of environmental conditions.
• REACH Compliance: The device is REACH unaffected, ensuring compliance with environmental and safety regulations.

STK621-140B-E Applications

The STK621-140B-E is particularly well-suited for applications that require efficient power management and control, such as:

• AC Motors: The high current capability and inductive load handling make it ideal for driving AC motors in various industrial and commercial applications.
• Power Supplies: The robust design and comprehensive protection features make it suitable for use in power supply units that require high reliability and efficiency.
• Automotive Systems: The wide supply voltage range and high current handling capabilities make it suitable for automotive applications where power management is critical.

Conclusion of STK621-140B-E

The STK621-140B-E is a versatile and high-performance half bridge driver IC that offers a range of advanced features and benefits. Its robust design, comprehensive protection mechanisms, and high current handling capabilities make it an ideal choice for applications requiring efficient power management and control. While the product is now obsolete, its legacy continues to influence the design and development of modern power management solutions. For engineers and designers seeking a reliable and efficient power management solution, the STK621-140B-E remains a notable reference point in the industry.