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Product Detailed Parameters
- Description：IC ACCELERATOR I2C HOTSWAP 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Buffer, Accelerator
- Applications：I2C - Hotswap
- Input：2-Wire Bus
- Output：2-Wire Bus
- Data Rate (Max)：-
- Number of Channels：1
- Delay Time：-
- Signal Conditioning：-
- Voltage - Supply：2.7V ~ 5.5V
- Current - Supply：5.1mA
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Capacitance - Input：10 pF
- Grade：-
- Qualification：-
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Overview
The TCA4311ADR is a single-channel I2C hot-swap buffer manufactured by Texas Instruments, designed to facilitate safe insertion and removal of circuit boards while powered. It operates within a supply voltage range of 2.7V to 5.5V and draws a supply current of 5.1mA. The device supports input capacitance up to 10pF and functions reliably across an operating temperature range of -40°C to 85°C. Housed in an 8-SOIC package with a width of 3.90mm, it serves as a signal buffer for two-wire bus applications, ensuring system integrity during hot-plugging events.
Feature Summary
- Enables safe hot-swapping of I2C bus devices without disrupting active system operations or causing electrical faults.
Applications
- I2C hot-swap interface protection
- Signal buffering for two-wire bus systems
Procurement Notes
Verify the specific ordering suffix 'ADR' corresponds to the tape-and-reel packaging format when sourcing components. Confirm that the manufacturer part number matches the exact specifications required for the design, as suffixes may indicate variations in packaging or testing criteria rather than functional changes. Ensure compliance with RoHS3 standards if environmental regulations apply to the final assembly.
Selection Notes
Select this component when designing systems requiring protected I2C connectivity for removable modules. Verify that the 8-SOIC footprint aligns with the PCB layout constraints. Ensure the operating voltage range of 2.7V to 5.5V matches the system power rails. Consider the thermal performance within the specified -40°C to 85°C range for the intended environment.
Part Context
This part belongs to the TCA4311 family of I2C hot-swap buffers from Texas Instruments. It is specifically engineered to manage the electrical transients associated with inserting or removing I2C peripherals. The 'ADR' suffix typically denotes the reel-based packaging variant used for automated surface-mount assembly processes.
Replacement Considerations
The TCA4311DR is a related variant within the same product family, though availability status may differ between the ADR and DR suffixes. Verify pinout compatibility and electrical specifications before substituting.
