TCA9517DGKRQ1

Translators, Level Shifters Overview

The TCA9517DGKRQ1 is an automotive-grade, level-shifting I2C bus repeater manufactured by Texas Instruments. It functions as a dual bidirectional voltage-level translator designed for I2C and SMBus systems. The device supports standard and fast-mode operations with a maximum clock frequency of 400 kHz. It operates within a supply voltage range of 0.9 V to 5.5 V on the A side and 2.7 V to 5.5 V on the B side. The component features low propagation delay of 141 ns and input capacitance of 8 pF. It is housed in an SOIC-8 package and rated for operating temperatures from -40 °C to +125 °C.

Translators, Level Shifters Feature Summary

• Provides level translation between different voltage domains for I2C and SMBus interfaces
• Supports bidirectional data buffering for both SCL and SDA lines
• Maintains high-impedance state on outputs when power is removed
• Capable of tolerating overvoltage conditions up to 5.5 V even in powered-off states

Translators, Level Shifters Applications

• Automotive infotainment system interconnects
• Vehicle sensor network expansion
• I2C bus topology extension in harsh environments

Translators, Level Shifters Procurement Notes

Verify that the specific suffix 'Q1' confirms AEC-Q100 automotive qualification status through official Texas Instruments documentation. Confirm the SOIC-8 package designation matches the required PCB footprint. Ensure the datasheet revision aligns with current manufacturing specifications before finalizing procurement orders.

Translators, Level Shifters Selection Notes

Select this component when automotive reliability and wide temperature operation are required for I2C bus extension. It serves as a suitable alternative to non-automotive variants like the PCA9517 series. Consider its voltage tolerance capabilities if interfacing with mixed-voltage logic levels in vehicle electronics.

Translators, Level Shifters Part Context

This part belongs to the TCA9517 family of level-translating I2C bus repeaters. It shares functional similarities with the PCA9517 but includes automotive-specific qualifications. The DGKRQ1 designation indicates a specific tape-and-reel packaging configuration optimized for automated assembly processes in mass production environments.

Translators, Level Shifters Replacement Considerations

TCA9517DR is a verified commercial-grade substitute with identical electrical characteristics but without automotive qualification.