TCA9517ADGKR

Translators, Level Shifters Overview

The TCA9517ADGKR is a level-translating I2C bus repeater manufactured by Texas Instruments. It operates within a supply voltage range of 0.8 V to 5.5 V on the A side and 2.2 V to 5.5 V on the B side. The device supports I2C and SMBus interfaces with a maximum clock frequency of 400 kHz. It features a propagation delay of 141 ns and an input capacitance of 8 pF. The operating power supply current is 1 mA. The component functions in temperatures from -40°C to +85°C and is housed in an 8-VSSOP package.

Translators, Level Shifters Feature Summary

• Provides bidirectional voltage-level translation between different logic domains
• Acts as a repeater to extend I2C bus distance and increase fan-out capability
• Supports standard I2C and SMBus communication protocols

Translators, Level Shifters Applications

• Interfacing low-voltage microcontrollers with higher-voltage peripheral devices
• Extending I2C bus length in embedded systems
• Increasing I2C bus fan-out capacity for multiple slave devices

Translators, Level Shifters Procurement Notes

Verify the specific suffix 'DGKR' corresponds to the VSSOP-8 tape-and-reel packaging configuration. Confirm that the 'A' variant meets the required voltage translation specifications for your design. Check for end-of-life or not-for-new-design status updates directly from Texas Instruments documentation before finalizing procurement plans.

Translators, Level Shifters Selection Notes

Select this component when bidirectional level shifting is required for I2C buses connecting devices with different supply voltages. Ensure the target application operates within the specified -40°C to +85°C temperature range. Verify that the 400 kHz maximum clock frequency aligns with system timing requirements. Consider the 8-VSSOP package constraints for PCB layout availability.

Translators, Level Shifters Part Context

This part belongs to the TCA9517 family of level-shifting I2C bus repeaters. It serves as a functional equivalent to the PCA9517 series, offering similar capabilities in voltage translation and bus repeating. The device is designed to facilitate communication between digital circuits operating at different voltage levels while maintaining signal integrity.

Translators, Level Shifters Replacement Considerations

The TCA9517DR is a pin-compatible alternative in an SOIC-8 package. The PCA9517 series offers similar functionality from other manufacturers. Verify electrical parameters and package dimensions before substitution.