TPT29617AL1-SO1R

Translators, Level Shifters Overview

The TPT29617AL1-SO1R is a dual-channel bidirectional I2C bus level shifter and repeater manufactured by 3PEAK. It supports Standard-mode, Fast-mode, and Fast-mode Plus protocols for SDA/SCL lines in I2C and SMBus applications. The device enables voltage translation between VREF1 (0.8 V to 5.5 V) and VREF2 (2.2 V to 5.5 V). It features open-drain inputs/outputs, latch-up protection exceeding 600 mA, and ESD ratings of 7 kV HBM and 1.5 kV CDM. Characterized from -40°C to +125°C, it is housed in an 8-pin SOP package.

Translators, Level Shifters Feature Summary

• Dual-channel bidirectional buffer isolates capacitance and allows up to 540 pF on either side at 1 MHz.
• Supports multi-mode operation including Standard-mode, Fast-mode, and Fast-mode Plus.
• Features latching-free operation to prevent internal buffer lockup during signal transitions.
• Includes an active-high enable input with internal pull-up to isolate ports when disabled.

Translators, Level Shifters Applications

• Servers and storage systems
• Telecom switching equipment and routers
• Industrial automation control systems

Translators, Level Shifters Procurement Notes

Verify the specific suffix L1 corresponds to the SOP-8 package variant when sourcing. Confirm RoHS compliance and halogen-free status as defined by manufacturer standards. Ensure supply voltages strictly adhere to the specified VREF1 and VREF2 operating ranges to maintain functional integrity.

Translators, Level Shifters Selection Notes

Select this component for designs requiring translation between low-voltage logic down to 0.8 V and standard 2.5 V, 3.3 V, or 5 V buses. It is suitable for expanding I2C networks via star or series configurations. Ensure the application does not require simultaneous high-speed data transfer across multiple isolated domains beyond its repeater capabilities.

Translators, Level Shifters Part Context

This part belongs to the TPT29617A family of I2C level shifters. The AL1 suffix specifically denotes the SOP-8 package configuration, distinguishing it from the MSOP-8 VS1R variant. It serves as a bridge for mixed-voltage digital interfaces within complex electronic architectures.

Translators, Level Shifters Replacement Considerations

TPT29617A-VS1R

Translators, Level Shifters FAQ

How does the device handle power-up sequences?

The TPT29617A includes a power-up circuit that keeps output drivers off until VREF2 exceeds 2.2 V and VREF1 exceeds 0.8 V, preventing bus contention during initialization.

What is the function of the EN pin?

The EN pin acts as an active-high enable input. When low, it disconnects the translator, placing both ports in a high-impedance state to isolate the buses.