TXU0304QPWRQ1

Overview

The TXU0304QPWRQ1 is an automotive-grade, 4-bit bidirectional voltage-level translator manufactured by Texas Instruments. It operates with dual supply voltages ranging from 1.2 V to 5.5 V, enabling seamless translation between different logic families. The device utilizes an open-drain configuration on the B port, allowing it to interface with various bus standards. Designed for harsh environments, it meets AEC-Q100 qualification standards and supports a wide operating temperature range from -40°C to +125°C.

Feature Summary

• Bidirectional automatic voltage-level translation between two independent power domains without direction control signals
• Supports flexible I/O configurations with open-drain output capability on the B side for mixed-voltage bus compatibility
• AEC-Q100 qualified for automotive applications ensuring reliability under extended temperature conditions

Applications

• Interfacing low-voltage microcontrollers with higher-voltage peripheral devices in automotive ECUs
• Level shifting for I2C, SMBus, and other open-drain communication buses across mixed-voltage systems
• Connecting 1.2 V or 1.8 V logic cores to 3.3 V or 5 V sensor interfaces in vehicle networks

Procurement Notes

Verify the specific suffix 'PWRQ1' confirms the TSSOP-14 package and automotive grade status. Confirm AEC-Q100 certification requirements match your system's environmental specifications. Ensure supply voltage rails are within the 1.2 V to 5.5 V operational limits for both ports before integration.

Selection Notes

Select this component when bidirectional level translation is required without explicit direction control pins. It is suitable for open-drain protocols like I2C where the B-side open-drain structure is necessary. Compare against LSF0204QPWRQ1 if push-pull outputs are preferred over open-drain configurations for the same voltage ranges.

Part Context

This part belongs to Texas Instruments' TXU series of voltage-level translators. The 'Q1' suffix denotes automotive qualification, while 'PWR' indicates the TSSOP-14 surface-mount package. It complements the standard TXU0304 by providing enhanced reliability for automotive electronics manufacturing.

Replacement Considerations

TXB0104QPWRQ1 offers similar functionality but features push-pull outputs instead of open-drain, which may affect bus compatibility. LSF0204QPWRQ1 provides auto-direction sensing with push-pull outputs, suitable for non-open-drain applications.