TPW4425-QFKR-S

Overview

The TPW4425-QFKR-S is a four-channel single-pole dual-throw (SPDT) analog switch manufactured by 3PEAK. It operates on a supply voltage range of ±3.3V to ±8V or 3.3V to 16V, with an operating temperature range from –40°C to 125°C. The device features a typical ON-state resistance of 4.5Ω at Vs = ±5V and a bandwidth of 150 MHz. Switching times are specified as tON = 200ns and tOFF = 130ns at Vs = ±5V. It incorporates break-before-make switching action to prevent momentary shorting during channel transitions. The component is housed in a QFN-20 package.

Feature Summary

• Four independent SPDT channels for signal routing
• Break-before-make switching mechanism
• Wide supply voltage compatibility
• Low ON-state resistance

Applications

• Industry control systems
• Battery-powered systems
• Audio Signal Routing
• Instrumentation

Procurement Notes

Verify the specific ordering suffix 'QFKR' against the manufacturer's official documentation to confirm the QFN-20 package configuration and tape-and-reel quantity. Ensure that the selected variant matches the required thermal and electrical specifications for the intended application environment.

Selection Notes

Select this component when designing multiplexer or demultiplexer circuits requiring high-speed switching and low power dissipation. Consider the 150 MHz bandwidth and fast switching times for applications demanding rapid signal path changes. Verify that the input signals remain within the supply voltage rails to ensure proper operation.

Part Context

The TPW4425 is part of 3PEAK's general-purpose analog switch portfolio. It is designed using an enhanced process technology that balances low power consumption with high switching speeds. This family of devices serves as versatile building blocks for analog signal processing and routing tasks across various industrial and consumer electronics applications.

Replacement Considerations

The datasheet lists the TSSOP-20 version (TPW4425-TS4R) as a future product option. No other direct cross-model replacements are documented in the provided materials.

FAQ

What is the function of the /E pin?

The /E pin is an active-low digital input. When held high, it disables the device and turns off all switches. When held low, the INx logic inputs determine which switches are active.

How does the exposed pad connect internally?

In the QFN-20 package, the exposed pad is tied directly to the VEE pin, which represents the most negative power supply potential.

What is the purpose of break-before-make switching?

This feature prevents momentary shorting between channels during switching transitions, ensuring signal integrity and protecting connected circuitry.