TCA9802DGKR

Translators, Level Shifters Overview

The TCA9802DGKR is a dual-channel I2C and SMBus level translator manufactured by Texas Instruments. It operates within a supply voltage range of 800 mV to 3.6 V for the A-side and 1.65 V to 3.6 V for the B-side, enabling flexible interface connections between different logic families. The device supports data rates up to 400 kHz with propagation delays of 20 ns and 110 ns. It features open-drain outputs and draws a typical operating current of 34 uA. Packaged in an 8-pin VSSOP, it functions reliably across temperatures from -40°C to +85°C.

Translators, Level Shifters Feature Summary

• Provides bidirectional voltage translation between low-voltage I2C/SMBus devices and higher voltage interfaces
• Supports standard mode operation at clock frequencies up to 400 kHz
• Features open-drain output configuration suitable for multi-master bus topologies

Translators, Level Shifters Applications

• Interfacing low-voltage microcontrollers with legacy 5V or 3.3V I2C peripherals
• Level shifting in mixed-voltage embedded systems utilizing SMBus protocols
• Signal buffering for I2C buses requiring extended drive capability

Translators, Level Shifters Procurement Notes

Verify the specific suffix 'DGKR' corresponds to the VSSOP-8 package and reel packaging configuration. Confirm that the operating voltage requirements align with both the source and destination logic levels in your circuit design. Ensure compliance with RoHS directives as indicated in official documentation before finalizing procurement specifications.

Translators, Level Shifters Selection Notes

Select this component when bidirectional translation between dissimilar voltage domains is required for I2C or SMBus communication. It is suitable for applications needing low power consumption and compact surface-mount packaging. Consider the open-drain nature of the outputs when designing pull-up resistor networks for the respective bus lines.

Translators, Level Shifters Part Context

This part belongs to the TCA9802 series of dual-channel level translators designed specifically for I2C and SMBus applications. It addresses the need for seamless integration between modern low-voltage digital components and older or higher-voltage interface standards without requiring complex external circuitry.

Translators, Level Shifters Replacement Considerations

Check for direct pin-compatible alternatives within the same family or similar function from other manufacturers. Verify that any substitute maintains the 400 kHz speed rating and compatible voltage ranges for both A and B sides.