Intersil

ISL84517IH-T

ISL84517IH-T Description

The ISL84517IH-T is a single-pole single-throw normally closed (SPST-NC) switch designed by Intersil, a leading manufacturer of high-performance analog and mixed-signal integrated circuits. This device is part of the Interface IC Chips category and is housed in a compact SOT23 package, making it ideal for space-constrained applications. Despite its small form factor, the ISL84517IH-T offers robust performance characteristics that make it suitable for a wide range of electronic systems.

ISL84517IH-T Features

• Low Leakage Current: The ISL84517IH-T boasts a maximum leakage current (IS(off)) of only 1nA, ensuring minimal power consumption and maintaining signal integrity when the switch is in the off state.
• Wide Supply Voltage Range: With a dual supply voltage (V±) range of ±1.5V to ±6V, this switch is versatile and can operate across a broad spectrum of power supply configurations, enhancing its compatibility with various electronic systems.
• Low On-State Resistance: The maximum on-state resistance (R(on)) is 20 ohms, which minimizes power dissipation and voltage drop across the switch, ensuring efficient signal transmission.
• Low Channel Capacitance: The channel capacitance (CS(off), CD(off)) is rated at 9pF for both the source and drain, which helps in maintaining high-frequency performance and reducing signal distortion.
• Minimal Charge Injection: The charge injection is limited to 10pC, which is crucial for maintaining signal fidelity, especially in sensitive analog applications.
• Fast Switching Times: The switch time (Ton, Toff) is a maximum of 100ns for turn-on and 75ns for turn-off, enabling rapid switching operations and making it suitable for high-speed applications.
• Surface Mount Technology: The ISL84517IH-T is designed for surface mount applications, facilitating automated assembly processes and enhancing reliability in modern manufacturing environments.

ISL84517IH-T Applications

The ISL84517IH-T is well-suited for applications requiring a reliable and efficient SPST-NC switch. Its low leakage current and wide supply voltage range make it ideal for battery-powered devices and portable electronics where power efficiency is critical. The low on-state resistance and channel capacitance ensure that it can handle both low and high-frequency signals with minimal distortion, making it suitable for analog signal routing in communication systems, medical equipment, and precision instrumentation.

Specific use cases include:

• Battery Management Systems: The low leakage current helps in extending battery life by minimizing power loss when the switch is off.
• Signal Routing in Communication Systems: The fast switching times and low channel capacitance ensure that high-frequency signals are transmitted with minimal delay and distortion.
• Medical Equipment: The device's reliability and low charge injection make it suitable for sensitive applications where signal integrity is paramount.
• Automotive Electronics: The surface mount technology and robust performance characteristics make it ideal for automotive applications where space and reliability are critical.

Conclusion of ISL84517IH-T

The ISL84517IH-T is a high-performance SPST-NC switch that offers a combination of low leakage current, wide supply voltage range, and fast switching times, making it a versatile component for various electronic applications. Despite its obsolete status, the ISL84517IH-T remains a reliable choice for applications where its unique features and performance benefits are required. Its compact SOT23 package and surface mount design further enhance its suitability for modern space,-constrained designs. For engineers and designers seeking a reliable and efficient switch solution, the ISL84517IH-T is a compelling option.