CPC5903GSTR

Overview

The CPC5903GSTR is a dual-channel I2C bus repeater optoisolator manufactured by IXYS Integrated Circuits Division. It provides galvanic isolation between I2C bus segments with a rated isolation voltage of 3750Vrms. The device operates within a supply voltage range of 2.7V to 5.5V and supports bidirectional data transmission. It is housed in an 8-SMD, gull-wing package designed for surface-mount installation. The component functions as a special purpose isolator to extend communication distance while maintaining signal integrity across electrically noisy environments.

Feature Summary

• Provides bidirectional I2C signal buffering and isolation
• Supports high-voltage galvanic separation between circuit sections
• Compatible with standard low-voltage power supply ranges

Applications

• Isolating I2C master devices from slave peripherals
• Extending I2C bus reach in mixed-signal systems
• Protecting sensitive control logic from ground potential differences

Procurement Notes

Verify the specific suffix designation when sourcing replacements, as packaging variations exist within the product family. Confirm that the required isolation voltage rating aligns with system safety standards. Check current availability status, as this component may be subject to discontinuation notices or lifecycle changes. Ensure the selected variant matches the necessary channel count and package type for the target PCB layout.

Selection Notes

Select this component when bidirectional I2C isolation is required without protocol conversion. Evaluate the maximum operating temperature range against environmental conditions. Consider the package dimensions for space-constrained designs. Verify compatibility with the system's supply voltage limits before integration into the final application architecture.

Part Context

This part belongs to the CPC5903 series of special purpose isolators. It shares functional similarities with other I2C repeaters but offers specific isolation characteristics. The STR suffix typically indicates tape-and-reel packaging, differing from tube-packaged variants like the CPC5903GS. It serves as a bridge between isolated domains in industrial and consumer electronics.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.