PI3USB221AZUAEX

Analog Switches - Special Purpose Overview

The PI3USB221AZUAEX is a high-bandwidth USB switch IC designed for routing high-speed USB 2.0 signals in mobile and consumer electronics. It operates at VDD voltages of 2.5 V and 3.3 V, with I/O pins accepting signals up to 5.5 V. The device features a typical bandwidth of 1.6 GHz, an on-resistance (rON) maximum of 6 Ω, and low power consumption of 50 µA maximum. It provides ESD protection rated at 12 kV HBM for I/O pins and includes overvoltage protection for D+/D- pins. Packaged in a 10-pin UQFN (1.5x2 mm), it supports bidirectional switching with minimal signal attenuation.

Analog Switches - Special Purpose Feature Summary

• Supports USB 1.0, 1.1, and 2.0 signal routing with high bandwidth
• Provides overvoltage protection for data pins per USB specifications
• Features low-power mode with 2 µA current when OE is disabled
• Offers robust ESD protection for both I/O and control pins

Analog Switches - Special Purpose Applications

• Mobile phones and handheld devices
• Digital cameras
• Notebooks with limited USB I/O controllers or hubs
• MIPI signal routing applications

Analog Switches - Special Purpose Procurement Notes

Verify the component against Diodes Incorporated datasheet DS40269 Rev 5-2. Confirm the package code ZUA corresponds to the 10-pin UQFN (1.5x2.0 mm) form factor. Ensure compliance with RoHS 3 and REACH standards as specified by the manufacturer. Check for automotive qualification requirements if AEC-Q100 compliance is necessary for the target application.

Analog Switches - Special Purpose Selection Notes

Select this component for designs requiring bidirectional switching of differential USB data lines with minimal distortion. The 1.6 GHz bandwidth ensures signal integrity for high-speed transfers. Verify that the system voltage aligns with the 2.3 V to 3.6 V operating range. Consider the 10-pin UQFN footprint for PCB layout constraints and ensure adequate thermal management within the specified junction temperature limits.

Analog Switches - Special Purpose Part Context

This part belongs to the PI3USB221A family of high-speed multiplexer switches from Diodes Incorporated. It is specifically engineered for portable electronics where space and power efficiency are critical. The ZUA suffix denotes the specific 10-pin ultra-thin QFN package variant, distinguishing it from other package options like the UDFN.

Analog Switches - Special Purpose Replacement Considerations

Direct replacements include the PI3USB221EQ1ZUAEX and PI3USB221ZEEX. Verify pin compatibility and electrical parameters such as rON and bandwidth before substitution. Note that some variants may have different packaging or automotive qualifications.

Analog Switches - Special Purpose FAQ

What is the maximum voltage the I/O pins can accept?

The I/O pins can accept signals up to 5.5 V, allowing compatibility with various logic levels.

How does the device handle overvoltage conditions on data pins?

It offers overvoltage protection for D+/D- pins; if shorted to VBus (5V +/- 5%), a signal less than 3.8 V typically transmits through the outputs.

What is the typical bandwidth of the PI3USB221AZUAEX?

The device has a typical bandwidth of 1.6 GHz, ensuring minimal edge and phase distortion for high-speed signals.