onsemi

KA555I

KA555I Description

The KA555I is a 555 type timer/oscillator IC designed for a wide range of timing applications. Manufactured by onsemi, this single timer IC is housed in an 8-DIP package and is known for its robust performance and versatility. The KA555I operates within a supply voltage range of 4.5V to 16V and draws a supply current of 7.5 mA, making it suitable for various power supply conditions. It features a through-hole mounting type, which ensures reliable mechanical stability and ease of integration into printed circuit boards. The product is classified under ECCN EAR99 and is REACH unaffected, adhering to stringent environmental and regulatory standards. The KA555I is packaged in a tube, offering protection and ease of handling during assembly processes. Despite its obsolescence, the KA555I remains a reliable choice for applications requiring a single timer oscillator due to its proven performance and wide operational range.

KA555I Features

• Wide Operating Voltage Range: The KA555I operates within a supply voltage range of 4.5V to 16V, providing flexibility for various power supply configurations.
• Low Supply Current: Drawing only 7.5 mA, the KA555I ensures minimal power consumption, making it ideal for applications where energy efficiency is crucial.
• Through-Hole Mounting: This mounting type ensures robust mechanical stability and ease of integration into PCBs, enhancing the reliability of the end product.
• Compliance with Regulatory Standards: Classified under ECCN EAR99 and REACH unaffected, the KA555I meets stringent environmental and regulatory requirements.
• Packaged in Tube: The tube packaging protects the IC during handling and assembly, reducing the risk of damage and ensuring high-quality performance.
• Moisture Sensitivity Level (MSL) 1: The KA555I has an unlimited moisture sensitivity level, making it suitable for a wide range of environmental conditions without the need for special handling precautions.

KA555I Applications

The KA555I is ideal for a variety of applications requiring precise timing and oscillation functions. Some specific use cases include:

• Monostable and Astable Multivibrators: The KA555I can be configured to generate precise timing intervals and oscillation frequencies, making it suitable for applications such as pulse generation, frequency division, and time delay circuits.
• Sequential Timing Circuits: The timer/oscillator function of the KA555I can be utilized to create sequential timing circuits, which are essential in digital systems for controlling the timing of various operations.
• Frequency Modulation and Demodulation: The KA555I can be employed in frequency modulation and demodulation circuits, providing a cost-effective solution for communication systems.
• PWM Control Circuits: The IC can be used to generate pulse-width modulated signals, which are critical in applications such as motor speed control and power supply regulation.
• Educational and Experimental Circuits: Due to its simplicity and versatility, the KA555I is widely used in educational and experimental circuits, allowing students and hobbyists to explore the principles of timing and oscillation.

Conclusion of KA555I

The KA555I, manufactured by onsemi, is a versatile and reliable 555 type timer/oscillator IC. Its wide operating voltage range, low supply current, and through-hole mounting type make it suitable for a variety of applications requiring precise timing and oscillation functions. Despite being marked as obsolete, the KA555I continues to offer significant advantages over similar models due to its proven performance and compliance with regulatory standards. Its applications span across monostable and astable multivibrators, sequential timing circuits, frequency modulation and demodulation, PWM control circuits, and educational/experimental circuits, making it a valuable component in the electronics industry.