TPT29617A-VS1R

Translators, Level Shifters Overview

The TPT29617A-VS1R is a dual-channel bidirectional I²C bus level shifter and repeater manufactured by 3PEAK in an MSOP-8 package. It supports Standard-mode, Fast-mode, and Fast-mode Plus protocols with VREF1 ranging from 0.8 V to 5.5 V and VREF2 from 2.2 V to 5.5 V. The device features open-drain I/Os, latch-up protection exceeding 600 mA, and ESD ratings of 7 kV HBM and 1.5 kV CDM. Operating temperature spans -40°C to +125°C.

Translators, Level Shifters Feature Summary

• Dual-channel bidirectional translation between low-voltage (down to 0.8 V) and standard voltage domains
• Latching-free operation prevents internal buffer lockup during signal transitions
• Active-high enable pin isolates ports when driven low for system safety
• High ESD tolerance ensures robustness against electrostatic discharge events

Translators, Level Shifters Applications

• I2C, SMBus, PMBus, MDIO, UART, Low-Speed SDIO, GPIO, and Other Two-Signal Interfaces
• Servers/Storages
• Routers (Telecom Switching Equipment)
• Personal Computers/Consumer handsets
• Industrial Automation

Translators, Level Shifters Procurement Notes

Verify the VS1R suffix confirms the MSOP-8 package and tape-and-reel delivery format. Confirm the operating temperature range matches the application requirements. Ensure the design accounts for the specific pull-up resistor values required for the target I2C speed modes. Validate that the power sequencing aligns with the internal power-up circuit behavior.

Translators, Level Shifters Selection Notes

Select this component when interfacing I2C devices with significantly different supply voltages, such as translating between 0.8 V and 3.3 V systems. The dual-channel architecture allows simultaneous handling of clock and data lines. Consider the high ESD ratings for environments prone to static discharge. Verify that the maximum input/output voltage does not exceed the 5.5 V tolerance limit.

Translators, Level Shifters Part Context

This part belongs to the TPT29617A family of I2C level shifters produced by 3PEAK. The manufacturer specializes in high-performance analog chips for industrial, medical, and automotive applications. This specific model provides bidirectional buffering and repeater functionality, enabling complex multi-master or star-network topologies across different voltage domains.

Translators, Level Shifters Replacement Considerations

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

Translators, Level Shifters FAQ

How does the device handle power-up sequences?

The internal power-up circuit keeps output drivers off until VREF2 exceeds 2.2 V and VREF1 exceeds 0.8 V, allowing either voltage to be applied first.

What is the function of the EN pin?

The EN pin is active-high; driving it low disconnects the translator, placing SDA and SCL pins in a high-impedance state to isolate the two sides.