PI3USB221EQ1ZUAEX

Analog Switches - Special Purpose Overview

The PI3USB221EQ is a high-speed USB 2.0 multiplexer/demultiplexer switch designed for routing differential D+/D- signals between a host and two peripheral ports. It operates on a single supply voltage ranging from 2.3V to 3.6V, with I/O pins accepting signals up to 5.5V. The device features a typical bandwidth of 1.6 GHz, an on-resistance (rON) maximum of 7 Ohms, and low power consumption of 50 µA maximum. It includes overvoltage protection that allows signal transmission through the switch even when powered off if D+/D- pins are shorted to VBus. The component is housed in a 10-pin UQFN package measuring 1.5x2.0 mm.

Analog Switches - Special Purpose Feature Summary

• Supports bidirectional switching of high-speed USB 2.0 signals with minimal attenuation or phase distortion.
• Provides overvoltage protection allowing data pass-through during power-off states when connected to VBus.
• Features automotive-grade qualification including AEC-Q100 certification and IATF 16949 manufacturing compliance.

Analog Switches - Special Purpose Applications

• Routing signals for USB 1.0, 1.1, and 2.0 standards in mobile devices.
• Mobile Industry Processor Interface (MIPI) signal routing.
• Handset and consumer applications such as cell phones, digital cameras, and notebooks with limited USB I/Os.

Analog Switches - Special Purpose Procurement Notes

Verify the specific ordering suffix 'ZUAEX' corresponds to the 10-pin UQFN package and tape-and-reel packaging format. Confirm the 'EQ' designation aligns with the required automotive grade and RoHS 3 compliance specifications before finalizing procurement orders.

Analog Switches - Special Purpose Selection Notes

Select this component when designing systems requiring a 1:2 multiplexer for USB 2.0 High-Speed data paths. Ensure the design accommodates the 2.3V to 3.6V supply range and utilizes the 1.8V-compatible control inputs for seamless integration with standard logic levels.

Analog Switches - Special Purpose Part Context

This part belongs to the PI3USB series of USB switches manufactured by Diodes Incorporated. It is specifically engineered for portable electronics where space constraints necessitate the compact 10-UQFN form factor while maintaining high signal integrity for USB 2.0 protocols.

Analog Switches - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative USB multiplexers based on pinout, electrical characteristics, and package dimensions.

Analog Switches - Special Purpose FAQ

How does the device handle overvoltage conditions on the data lines?

The PI3USB221EQ supports overvoltage protection. If D+/D- pins are shorted to VBus (5V +/- 5%), a signal less than 3.8V typically transmits through the outputs even when the chip is powered off.

What is the control input voltage compatibility?

The control-pin inputs are compatible with 1.8-V logic levels, allowing direct interfacing with various controller types without additional level shifting.

Is this component suitable for automotive applications?

Yes, the PI3USB221EQ is AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities, making it suitable for automotive applications requiring specific change control.