ISL54224IRTZ-T

Analog Switches - Special Purpose Overview

The ISL54224IRTZ-T is a high-speed USB 2.0 multiplexer featuring dual 2:1 switching configuration, effectively acting as a DPDT switch. It operates on a single supply voltage ranging from 2.7V to 5.25V. The device incorporates overvoltage protection (OVP) circuitry that isolates fault voltages up to +5.25V or down to -5V from the protected side. It utilizes 6.5Ω switches designed for minimal signal distortion and includes an open-drain OE/ALM pin for control and alarm indication.

Analog Switches - Special Purpose Feature Summary

• Integrated overvoltage protection opens switches when input exceeds typical thresholds, safeguarding downstream transceivers
• Low on-resistance switches optimized for passing USB high-speed and full-speed data signals with minimal distortion
• Open-drain output pin provides both enable control and overvoltage alarm status indication

Analog Switches - Special Purpose Applications

• Portable battery-powered products requiring USB data signal switching
• USB hub designs needing inline protection against voltage faults
• Systems requiring isolation of negative or excessive voltage spikes on D-/D+ lines

Analog Switches - Special Purpose Procurement Notes

Verify component authenticity through authorized channels due to discontinuation status. Confirm package integrity and RoHS compliance before integration. Review latest datasheet revisions for any parameter updates. Ensure design compatibility with 1.8V logic inputs if operating within the 2.7V to 3.6V supply range. Validate OVP threshold requirements against specific system fault conditions.

Analog Switches - Special Purpose Selection Notes

Select this component for applications requiring integrated overvoltage protection alongside high-speed USB switching. Compare on-resistance and bandwidth specifications against alternative multiplexers if signal integrity margins are tight. Consider the open-drain alarm feature for systems requiring fault monitoring. Verify supply voltage compatibility with the 2.7V to 5.25V operational range.

Analog Switches - Special Purpose Part Context

This part belongs to the Intersil/Renesas ISL54224 series of high-speed USB multiplexers. It is specifically engineered for portable electronics where space and power efficiency are critical. The device combines switching functionality with robust protection mechanisms, distinguishing it from standard analog switches lacking overvoltage handling capabilities.

Analog Switches - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Renesas Electronics official resources for current obsolescence management and recommended replacement strategies.