TMUX6236RUMR

Overview

The TMUX6236RUMR is a Texas Instruments analog switch IC featuring two independent 2:1 (SPDT) channels in a 16-pin WQFN package. It operates on single supplies from 4.5V to 36V, dual supplies from ±4.5V to ±18V, or asymmetric configurations. The device supports bidirectional signals ranging from VSS to VDD with a maximum continuous current of 330mA. Key electrical parameters include a typical on-resistance of 2Ω and low off-leakage currents. Logic inputs are compatible with 1.8V thresholds, and the component functions reliably within an ambient temperature range of -40°C to +125°C.

Feature Summary

• Fail-safe logic circuitry allows control pin voltages to be applied before power supply rails to prevent damage.
• Integrated pull-down resistors on logic pins ensure defined states without external components.
• Rail-to-rail operation enables full signal path support from VSS to VDD for both analog and digital signals.

Applications

• Factory automation and industrial controls
• Programmable logic controllers (PLC)
• Analog input modules
• ATE test equipment
• Battery monitoring systems

Procurement Notes

Verify the specific ordering suffix RUMR corresponds to the WQFN-16 package configuration required for your design. Confirm that the reel packaging aligns with your assembly line handling capabilities. Ensure the component meets RoHS compliance standards applicable to your target market regulations before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring high voltage tolerance up to 36V with low on-resistance. The 1.8V logic compatibility makes it suitable for modern microcontroller interfaces. Consider the thermal dissipation limits of the WQFN package if operating near maximum current ratings at elevated temperatures.

Part Context

This part belongs to the TMUX6236 family of precision switches manufactured by Texas Instruments. It shares functional characteristics with other devices in the series but is distinguished by its specific 2-channel SPDT configuration and WQFN-16 physical footprint. The RUMR suffix indicates the specific tape-and-reel packaging variant of the standard TMUX6236 device.

Replacement Considerations

Direct substitutes within the same family include TMUX6236PW and TMUX6236PWR. These alternatives offer identical electrical specifications but utilize a TSSOP-16 package instead of the WQFN-16 form factor. Verify pinout compatibility and thermal management requirements when transitioning between package types.

FAQ

What is the maximum continuous current supported by the TMUX6236RUMR?

The device supports a maximum continuous current of 330mA per channel when operating in the WQFN package configuration.

How does the fail-safe logic feature benefit system reliability?

It protects the device from potential damage by allowing voltages on the control pins to be applied before the supply pins are powered up.

Is the signal path unidirectional or bidirectional?

The TMUX6236RUMR supports bidirectional analog and digital signals on the source and drain pins, ranging from VSS to VDD.