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Product Detailed Parameters
- Description：IC SW SPST-NCX4 10.5OHM 16WQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPST - NC
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：10.5Ohm
- Channel-to-Channel Matching (ΔRon)：500mOhm
- Voltage - Supply, Single (V+)：8V ~ 44V
- Voltage - Supply, Dual (V±)：±5V ~ 22V
- Switch Time (Ton, Toff) (Max)：-
- -3db Bandwidth：550MHz
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：-
- Current - Leakage (IS(off)) (Max)：-
- Crosstalk：-100dB @ 1MHz
- 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：4
- Grade：-
- Qualification：-
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Overview
The TMUX7462FRRPR is a quad-channel analog switch IC from Texas Instruments, housed in a WQFN-16 package. It features four independent SPST switches with integrated overvoltage protection that automatically disconnects channels during fault conditions without external control signals. The device operates on a single supply voltage ranging from 8 V to 44 V or dual supplies of ±5 V to ±22 V. Key electrical parameters include a maximum on-resistance of 10.7 Ohms and a maximum power dissipation of 1.6 W. It supports a maximum DC switch current of 150 mA and has a maximum supply current of 500 uA. The component functions within an operating temperature range of -40°C to +125°C.
Feature Summary
- Integrated automatic channel disconnection during overvoltage faults eliminates the need for dedicated control pins per channel.
- Latch-up immune construction ensures robust performance under extreme electrical stress conditions.
- Low and flat on-resistance characteristics support high linearity and low distortion in signal paths.
- Interrupt flag output provides immediate indication of fault status for system monitoring.
Applications
- Factory automation and control systems
- Programmable logic controllers (PLC)
- Analog input modules
- Semiconductor test equipment
- Data acquisition systems (DAQ)
Procurement Notes
Verify the specific suffix 'RRPR' corresponds to the WQFN-16 package and reel packaging configuration as listed in official Texas Instruments documentation. Confirm RoHS compliance status through the manufacturer's datasheet before integration. Ensure ESD handling protocols are followed due to moisture sensitivity classification. Cross-reference the part number against the latest TI product selection guide to validate availability and lifecycle status.
Selection Notes
Select this component when designing systems requiring independent overvoltage protection for multiple analog channels without complex control logic. It is suitable for applications needing wide supply voltage ranges up to 44V single supply. Consider the 10.7 Ohm maximum on-resistance for signal integrity requirements. Verify that the WQFN-16 package dimensions fit the PCB layout constraints compared to TSSOP alternatives.
Part Context
This part belongs to the TMUX7462F family of fault-protected analog switches. It shares the same core protection architecture and pinout compatibility with other members like the TMUX7412F and TMUX7436F, differing primarily in channel count and multiplexing capabilities. The F-series designation indicates enhanced fault protection features compared to standard analog switches.
Replacement Considerations
Direct substitutes within the same family include TMUX7462FPWR (TSSOP-16 package). For similar functionality with different channel counts, consider TMUX7412FRRPR or TMUX7413FRRPR. Verify package compatibility and parameter alignment before substitution.
