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Product Detailed Parameters
- Description：IC SWITCH SPDT X 1 2.8OHM 8VSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：2.8Ohm
- Channel-to-Channel Matching (ΔRon)：100mOhm
- Voltage - Supply, Single (V+)：4.5V ~ 44V
- Voltage - Supply, Dual (V±)：±4.5V ~ 22V
- Switch Time (Ton, Toff) (Max)：168ns, 180ns
- -3db Bandwidth：40MHz
- Charge Injection：-16pC
- Channel Capacitance (CS(off), CD(off))：34pF, 34pF
- Current - Leakage (IS(off)) (Max)：100pA (Typ)
- Crosstalk：-106dB @ 1MHz
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-VSSOP
- Number of Circuits：1
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The TMUX7219DGKRQ1 is a single-channel, 2:1 (SPDT) precision analog switch from Texas Instruments, designed for automotive applications with AEC-Q100 qualification. It operates on a single supply of 4.5V to 44V or dual supplies of ±4.5V to ±22V. The device features latch-up immunity and supports bidirectional signals ranging from VSS to VDD. Key electrical parameters include a maximum on-resistance of 2.8Ω at 44V single supply, a typical charge injection of -16pC, and a maximum continuous current of 330mA. It utilizes 1.8V logic compatible control inputs and is housed in an 8-pin VSSOP package.
Feature Summary
- AEC-Q100 qualified for automotive environments with functional safety capability documentation.
- Latch-up immune design prevents high-current events caused by overvoltage conditions.
- Fail-safe logic allows control pin voltages to be applied before power rails without damage.
- Bidirectional signal path supports rail-to-rail operation across the full supply range.
Applications
- EV charging station power modules
- Advanced driver assistance systems (ADAS)
- Automotive gateway and body control modules
- Battery management systems (BMS)
Procurement Notes
Verify the complete part number TMUX7219DGKRQ1 against official Texas Instruments documentation to confirm the specific suffix requirements for automotive grade and packaging. Ensure that the ordering information matches the intended application voltage and temperature specifications defined in the datasheet.
Selection Notes
Select this component when a single SPDT switch with high voltage tolerance up to 44V is required in an automotive context. Consider the low on-resistance and latch-up immunity for robust signal routing in harsh electrical environments. Verify that the 1.8V logic compatibility aligns with the system's control interface requirements.
Part Context
This device belongs to the TMUX72xx family of precision switches manufactured by Texas Instruments. The 'Q1' suffix indicates AEC-Q100 qualification for automotive use, while 'DGKR' specifies the 8-pin VSSOP package and reel-based tape and reel packaging format.
Replacement Considerations
Consult the Texas Instruments product selection guide for alternative parts within the TMUX72xx family or other automotive-qualified SPDT switches. Verify pinout compatibility and electrical parameter equivalence before substitution.
