TPT29511H-SO1R

Overview

The TPT29511H-SO1R is a dual bidirectional I2C and SMBus hot-swap buffer manufactured by 3PEAK in an SOP-8 package. It supports Fast-mode operation up to 400 kHz with a supply voltage range of 2.3 V to 5.5 V. The device features a typical shutdown current of 0.3 μA, 7-kV HBM ESD protection, and a built-in ΔV/Δt rise time accelerator. It operates within a temperature range of -40°C to +125°C.

Feature Summary

• Supports live board insertion and removal while isolating backplane and card capacitances
• Includes a digital enable input for low current mode and an open-drain ready output pin
• Features a built-in rise time accelerator circuitry to meet signal slew rate requirements

Applications

• Servers and storage systems
• Enterprise switching equipment
• Telecom base stations
• Industrial automation equipment

Procurement Notes

Verify the specific ordering suffix SO1R corresponds to the SOP-8 package configuration. Confirm that the component meets RoHS compatibility and halogen-free standards as defined by the manufacturer's green product specifications. Ensure the selected variant aligns with the required thermal and electrical operating conditions for the target application environment.

Selection Notes

Select this component when designing systems requiring hot-swappable I2C connectivity between backplanes and add-in cards. The device is suitable for applications needing isolation of bus capacitance during insertion events. Consider the series connection limitations due to accumulated offset voltage when extending bus length or adding repeaters.

Part Context

This part belongs to the TPT29511H family of hot-swap buffers designed for I2C and SMBus protocols. The SOP-8 packaging option provides a standard surface-mount footprint compatible with common PCB layouts. The device integrates control logic to manage bus directionality and pre-charge states automatically.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.