The MID400S from ON Semiconductor is a high-performance optoisolator designed specifically for AC line monitoring applications. This optically coupled isolator consists of an infrared emitting diode and a high-speed photodetector transistor. The device is encapsulated in a space-efficient 8-pin dual-inline package (DIP), providing optimal insulation and protection against electrical noise and transient voltages.

Key Features

• Voltage Isolation: The MID400S offers an excellent isolation voltage rating of 2500 Vrms, which ensures that the input and output are electrically isolated to protect sensitive microcontrollers and other digital circuits from high voltages.
• High-Speed Detection: With its fast response time, this optoisolator is capable of detecting AC line zero-cross events with precision, making it ideal for power control systems.
• Wide Operating Range: It operates over a wide temperature range of -40°C to +85°C, providing reliable performance in diverse environmental conditions.
• Logic Compatibility: The MID400S produces a logic-level output that is compatible with TTL, LSTTL, and CMOS logic, ensuring easy integration with a wide range of control circuits and microprocessors.

Applications

The MID400S is suited for a variety of applications where accurate AC line voltage monitoring is critical. These include:

• Industrial controls
• Motor control systems
• Power supply monitoring
• Instrumentation

Quality and Reliability

ON Semiconductor is known for its commitment to quality, and the MID400S is no exception. It is manufactured to stringent quality standards, ensuring high reliability and performance consistency. This optoisolator is a testament to ON Semiconductor's dedication to providing components that meet the rigorous demands of industrial and commercial applications.

Conclusion

The MID400S optoisolator from ON Semiconductor is a versatile and reliable solution for AC line monitoring. With its high-speed detection, robust voltage isolation, and logic-level output, it is an excellent choice for designers looking to enhance the safety and efficiency of their electronic systems.