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Product Detailed Parameters
- Description：USB-C 10-GBPS ALTERNATE MODE 6 B
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPST
- Multiplexer/Demultiplexer Circuit：4:04
- On-State Resistance (Max)：7Ohm (Typ)
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：3V ~ 3.6V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：-
- -3db Bandwidth：9.5GHz
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：20pF, 20pF
- Current - Leakage (IS(off)) (Max)：-
- Crosstalk：-38dB @ 5GHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：40-WFQFN Exposed Pad
- Supplier Device Package：40-WQFN (6x3)
- Number of Circuits：4
- Grade：-
- Qualification：-
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Overview
The TMUXHS4446RETR is a high-speed bidirectional passive crosspoint switch designed for USB Type-C Alternate Mode applications. It supports USB 3.2 Gen2 SuperSpeed and DisplayPort 1.4/2.1 signals up to 10Gbps per lane (UHBR10). The device features a 9.5GHz -3dB differential bandwidth, 6V tolerant SBU pins, and adaptive common mode voltage tracking from 0V to 1.8V. It operates on a single 3.3V supply with active power consumption of 340μA and standby power of 0.5μA. Control is achieved via GPIO or I2C interfaces supporting both 1.8V and 3.3V logic levels. The component is housed in a 3mm × 6mm WQFN-40 package and functions within an extended industrial temperature range of −40°C to 105°C.
Feature Summary
- Passive bidirectional switching between USB and DisplayPort signals over USB Type-C interfaces
- Adaptive common mode voltage tracking maintaining channel consistency across the full voltage range
- Dual control modes allowing configuration through either GPIO pins or I2C controllers
- 6V tolerance on sideband unit (SBU) pins to withstand short-to-VBUS events
Applications
- PCs and notebooks
- Docking stations
- Smartphones and tablets
- Gaming devices
- Electronic point of sale (EPOS)
Procurement Notes
Verify the specific suffix 'RETR' corresponds to the reel packaging format required for automated assembly processes. Confirm that the I2C address bits are correctly configured via the A0 and A1 pins for the target system bus topology. Ensure the PCB layout adheres to the thermal pad requirements specified in the datasheet to maintain junction temperatures within the recommended operating limits during continuous high-speed data transmission.
Selection Notes
Select this component when designing systems requiring seamless switching between USB 3.2 and DisplayPort Alt Mode signals at 10Gbps speeds. It is suitable for both source/host and sink/device configurations. Consider the 6V SBU pin tolerance if the design environment poses risks of VBUS shorts. Verify compatibility with the system's PD controller by confirming support for the required I2C logic voltage levels.
Part Context
This part belongs to the Texas Instruments TMUXHS4446 series of high-speed multiplexer switches. The 'RETR' suffix indicates the specific tape and reel packaging variant intended for surface-mount technology (SMT) manufacturing lines. It is distinct from other variants in the family based on its packaging and shipping configuration rather than internal functional differences.
Replacement Considerations
Consult the official Texas Instruments product selection guide for direct equivalents within the TMUXHS series. Verify that any substitute maintains the 10Gbps data rate capability and the specific 3mm x 6mm WQFN-40 footprint to ensure mechanical compatibility.
