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Product Detailed Parameters
- Description：IC ACCELERATOR I2C HOTSWAP 8-MSO
- Series：-
- Mfr：3PEAK
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Buffer, Accelerator
- Applications：I2C - Hotswap
- Input：-
- Output：-
- Data Rate (Max)：1Mbps
- Number of Channels：2
- Delay Time：66ns
- Signal Conditioning：-
- Voltage - Supply：2.3V ~ 5.5V
- Current - Supply：4mA
- 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-MSOP
- Capacitance - Input：3 pF
- Grade：-
- Qualification：-
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Overview
The TPT29511H is a dual bidirectional I2C and SMBus hot-swap buffer supporting live insertion and removal. It operates from a 2.3 V to 5.5 V supply with a typical shutdown current of 0.3 μA. The device supports Fast-mode frequencies up to 400 kHz and includes a built-in ΔV/Δt rise time accelerator for weak pull-ups. It provides 7-kV HBM and 1.5-kV CDM ESD protection, isolating backplane and card capacitances during connection.
Feature Summary
- Bidirectional buffering for I2C and SMBus applications
- Supports hot-swap IO card insertion and removal
- Built-in rise time accelerator circuitry
- Digital enable input and open-drain ready output
Applications
- Servers and storage systems
- Enterprise switching equipment
- Telecom base stations
- Industrial automation equipment
Procurement Notes
Verify the package type (MSOP8 or SOP8) against the ordering suffix. Confirm the operating temperature range matches system requirements. Ensure voltage levels on SDA and SCL lines are within the 0 V to 5.5 V input/output range. Check that the design accounts for the offset voltage accumulation if multiple buffers are used in series.
Selection Notes
Select this component when hot-swappable I2C connectivity is required between a backplane and add-in cards. It is suitable for isolating high bus capacitance during live insertion. Consider the series connection limit of two buffers due to accumulated offset voltage affecting the rise time accelerator threshold.
Part Context
This part belongs to the TPT29511 family of hot-swap I2C buffers. The TPT29511H variant specifically denotes the version characterized for an extended industrial temperature range of -40°C to +125°C. It shares functional similarities with other I2C translators but focuses on hot-swap isolation capabilities.
Replacement Considerations
TPT29511H-SO1R is the SOP8 package equivalent of the MSOP8 TPT29511H-VS1R. Both share identical electrical specifications and functionality, differing only in the physical package outline and tape/reel quantity.
