TPT29306L1-VS3R

Translators, Level Shifters Overview

The TPT29306L1-VS3R is a dual bidirectional I2C and SMBus voltage-level translator manufactured by 3PEAK. It operates with VREF1 ranging from 1.0 V to 3.6 V and VREF2 from 1.65 V to 5.5 V. The device supports Standard-mode, Fast-mode, and Fast-mode Plus protocols with a maximum propagation delay of less than 1.5 ns. It features an enable (EN) input for isolating bus segments and provides high-impedance states when disabled. The component is housed in a VSSOP8 package and is characterized for operation between -40°C and +85°C.

Translators, Level Shifters Feature Summary

• Dual bidirectional translation for SDA and SCL lines without requiring direction control pins
• Supports multi-mode communication including Standard-mode, Fast-mode, and Fast-mode Plus
• Features an enable pin to isolate ports and disconnect one side from the main bus
• Provides high ESD protection exceeding JESD 22 standards

Translators, Level Shifters Applications

• I2C, SMBus, PMBus, MDIO, UART, Low-Speed SDIO, and GPIO interfaces
• Servers and storage systems
• Telecom switching equipment and routers
• Personal computers and consumer handsets
• Industrial automation systems

Translators, Level Shifters Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the TPT29306 series includes MSOP8, VSSOP8, DFN1.4X1.0-8, and DFN3X4-8 variants. Confirm the operating temperature range requirements align with the standard -40°C to +85°C specification. Ensure design implementation accounts for the mandatory 200-kΩ pull-up resistor on the VREF2 pin to prevent excessive current draw and ensure reliable operation.

Translators, Level Shifters Selection Notes

Select this component when interfacing between different voltage domains such as 1.0 V to 5.5 V or 1.8 V to 3.3 V. It is suitable for applications requiring low propagation delay and support for multiple I2C speed modes. Consider the VSSOP8 package for space-constrained designs. Validate that the system bus capacitance remains within limits to maintain signal integrity across the translator.

Translators, Level Shifters Part Context

The TPT29306L1-VS3R belongs to the TPT29306 family of dual bidirectional translators produced by 3PEAK. This family addresses the need for seamless voltage translation in mixed-voltage digital systems. The L1 suffix indicates the specific VSSOP8 package variant, while other suffixes correspond to MSOP8 or DFN packages. All variants share identical electrical characteristics and functional capabilities.

Translators, Level Shifters Replacement Considerations

Direct substitutes include other TPT29306 variants with different packaging, such as TPT29306-VS1R (MSOP8), TPT29306L1-DFGR (DFN1.4X1.0-8), and TPT29306L1-DFER (DFN3X4-8). These parts offer identical electrical performance but differ in physical footprint and thermal characteristics.