TPW4051-QF4R

Overview

The TPW4051-QF4R is a single-pole octal-throw (SP8T) analog switch manufactured by 3PEAK, designed for general-purpose multiplexer and demultiplexer applications. It operates with supply voltages ranging from 3 V to 12 V, supporting both single and dual supply configurations. The device features low on-state resistance, typically 50 Ω at ±4.5 V or 9 V, and achieves a bandwidth of 200 MHz. Key dynamic characteristics include a turn-on time of 60 ns and a turn-off time of 50 ns. It incorporates break-before-make switching to prevent momentary shorting during channel transitions. The component supports an operating temperature range from –40°C to 125°C and includes electrostatic discharge protection compliant with ANSI/ESDA/JEDEC standards.

Feature Summary

• Supports single-pole octal-throw (SP8T) configuration for efficient signal routing in multiplexer and demultiplexer designs.
• Features break-before-make switching action to eliminate momentary shorts between channels during state transitions.
• Provides high-speed signal transmission with a 200 MHz bandwidth and fast switching times suitable for demanding applications.
• Operates across a wide voltage range with low quiescent current, making it suitable for battery-powered systems.

Applications

• Industry control systems requiring reliable signal switching
• Battery-powered portable equipment needing low power consumption
• Audio signal routing and processing circuits
• General instrumentation and measurement devices

Procurement Notes

Verify the specific ordering suffix QF4R corresponds to the QFN3X3-16 package when sourcing. Confirm that the required quantity aligns with the standard tape and reel packaging of 4000 units per reel as specified in the manufacturer's order information. Ensure compatibility with RoHS and halogen-free requirements if environmental compliance is mandatory for the end product.

Selection Notes

Select this component when an SP8T analog switch is required within a 12 V system. Consider the typical 50 Ω on-resistance at higher supply voltages for minimal signal attenuation. Verify that the 200 MHz bandwidth meets the frequency requirements of the application. Ensure the QFN3X3-16 package fits the PCB layout constraints and thermal management strategy, noting the recommended connection of the thermal pad to VEE or leaving it floating.

Part Context

The TPW4051 belongs to the TPW405x series of general-purpose analog switches from 3PEAK. This family includes variants with different channel configurations, such as the TPW4052 (dual 4:1) and TPW4053 (triple 2:1), all sharing similar electrical characteristics and pinouts where applicable. The series is designed to provide cost-effective solutions for signal routing in industrial and consumer electronics, offering a balance of performance and power efficiency.

Replacement Considerations

Direct pin-compatible replacements within the same family include the TPW4051-SR (SOP16), TPW4051-TR (TSSOP16), and TPW4051-SOBR (WSOP16). When substituting, ensure the new package variant matches the physical footprint and thermal requirements of the design. Cross-vendor equivalents should be evaluated based on matching on-resistance, bandwidth, and supply voltage specifications.

FAQ

What is the function of the E pin?

The E pin is the digital enable input. When held high, the switch is turned off regardless of the select inputs. When low, the switch operates according to the S0, S1, and S2 logic levels.

How does the TPW4051 handle channel switching?

It utilizes break-before-make switching technology. This ensures that the previous channel is fully disconnected before the new channel is connected, preventing momentary short circuits between outputs.

What is the recommended handling for the thermal pad?

The datasheet recommends that the thermal pad be either left floating or connected to the VEE pin to assist with thermal dissipation and electrical stability.