TPT29306L1-DFER

Translators, Level Shifters Overview

The TPT29306L1-DFER is a dual bidirectional I2C and SMBus voltage-level translator in a DFN3X4-8 package. It operates with VREF1 from 1.0V to 3.6V and VREF2 from 1.65V to 5.5V. The device supports Standard-mode, Fast-mode, and Fast-mode Plus protocols with propagation delays under 1.5 ns. It features an enable pin for isolation and provides ESD protection exceeding 4000-V HBM and 1000-V CDM.

Translators, Level Shifters Feature Summary

• Dual bidirectional translation for SDA and SCL lines without direction pins
• Supports multi-mode operation including SM, FM, and FM+ protocols
• Provides high-impedance isolation between ports when the enable input is low

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 the specific suffix DFER corresponds to the DFN3X4-8 package configuration. Confirm the Moisture Sensitivity Level (MSL) rating matches your reflow soldering profile requirements. Ensure the operating temperature range of -40°C to +85°C aligns with your system's thermal design specifications before finalizing procurement.

Translators, Level Shifters Selection Notes

Select this component when translating between asymmetric voltage domains such as 1.8V to 3.3V or 1.0V to 5V. The internal 3.5-ohm on-resistance ensures minimal signal delay for high-speed bus applications. Verify that the total bus capacitance on both sides remains within the specified limits to maintain signal integrity across the translator channels.

Translators, Level Shifters Part Context

This part belongs to the TPT29306 family of voltage translators manufactured by 3PEAK. The L1-DFER suffix specifically denotes the DFN3X4-8 package variant characterized for industrial temperatures. It serves as a direct interface solution for connecting low-voltage controllers to higher-voltage peripheral devices on shared communication buses.

Translators, Level Shifters Replacement Considerations

TPT29306L1-DFGR (DFN1.4X1.0-8 package)

Translators, Level Shifters FAQ

How does the Enable (EN) pin function?

When the EN pin is high, the translator switch connects SCL1/SDA1 to SCL2/SDA2. When low, it creates a high-impedance state to isolate the two sides.

What are the recommended pull-up resistor connections?

Pull-up resistors are required on both sides. VREF2 must be connected to VCC2 through a 200-kΩ resistor to regulate the EN input effectively.