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Product Detailed Parameters
- Description：IC SW SPDT-NO/NCX2 2.4OHM 16WQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPDT - NO/NC
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：2.4Ohm
- Channel-to-Channel Matching (ΔRon)：100mOhm (Typ)
- Voltage - Supply, Single (V+)：4.5V ~ 44V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：130ns, 160ns
- -3db Bandwidth：35MHz
- Charge Injection：104pC
- Channel Capacitance (CS(off), CD(off))：45pF, 55pF
- Current - Leakage (IS(off)) (Max)：1nA
- Crosstalk：-
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-WQFN Exposed Pad
- Supplier Device Package：16-WQFN (4x4)
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The TMUX7236RUMR is a dual-channel, 2:1 (SPDT) precision analog switch manufactured by Texas Instruments in a 16-pin WQFN package. It operates on single supplies from 4.5 V to 44 V or dual supplies from ±4.5 V to ±22 V. The device supports bidirectional signals ranging from VSS to VDD and features latch-up immunity with integrated fail-safe logic. Key electrical parameters include a maximum on-resistance of 5.4 Ω at 12 V single supply, a typical on-resistance of 2 Ω at higher voltages, and a maximum continuous current of 330 mA in the WQFN package. Logic inputs are compatible with 1.8 V thresholds.
Feature Summary
- Latch-up immune design for harsh environments
- Bidirectional signal support across full supply range
- Integrated pull-down resistors on logic pins
- Fail-safe logic protects against premature control voltage application
Applications
- Gas meters
- Flow transmitters
- Programmable logic controllers (PLC)
- Analog input modules
- Data acquisition systems
Procurement Notes
Verify the specific ordering suffix RUMR corresponds to the WQFN-16 package and tape-and-reel packaging format. Confirm that the component meets RoHS compliance requirements for your assembly process. Ensure the supplier provides valid traceability documentation consistent with Texas Instruments production standards.
Selection Notes
Select this component when high-voltage single-supply operation up to 44 V is required alongside low on-resistance characteristics. The 1.8 V logic compatibility makes it suitable for modern microcontroller interfaces. Consider the thermal dissipation limits of the WQFN package if operating near maximum current ratings.
Part Context
This part belongs to the TMUX72xx family of CMOS switches designed for industrial applications. The family emphasizes robustness through latch-up immunity and wide supply voltage ranges. The TMUX7236 specifically addresses needs for dual-channel switching with precise signal routing capabilities.
Replacement Considerations
Direct substitutes within the same family include the TMUX7234RRQR, which offers four channels in a WQFN-20 package. Other variants like the TMUX7219-Q1 provide similar SPDT functionality but may differ in channel count or qualification standards.
