TPT7740-SO3R

Overview

The TPT7740-SO3R is a high-performance, four-channel digital isolator manufactured by 3PEAK. It provides electrical isolation between isolated and non-isolated circuits using proprietary capacitive isolation technology. The device operates within a supply voltage range of 2.25V to 5.5V and supports data rates up to 150Mbps. It features a common-mode transient immunity (CMTI) of 150kV/µs. The component is available in a 16-SOIC package with a width of 3.90mm and offers an isolation rating of 3750VRMS per UL 1577 standards.

Feature Summary

• Four independent signal channels for simultaneous bidirectional data transmission
• Proprietary capacitive isolation technology ensuring long-term reliability
• High common-mode transient immunity for noise-resistant operation
• Wide operating temperature range suitable for industrial environments

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing certified isolation barriers
• Power metering and energy monitoring applications
• Automotive electronics utilizing isolated communication buses

Procurement Notes

Verify the specific suffix 'SO3R' corresponds to the SOP-16 package variant when sourcing. Confirm that the required isolation rating aligns with the 3750VRMS specification for this package type rather than the higher WSOP16 rating. Ensure compatibility with the 2.25V to 5.5V supply voltage range during component selection.

Selection Notes

Select this component when four isolated channels are required within a single footprint. It serves as a direct replacement for standard quad-channel isolators in designs where 150Mbps speed and 150kV/µs CMTI are sufficient. Consider the SOP-16 package constraints if board space is limited compared to wider SOIC variants.

Part Context

This part belongs to the TPT774x series of digital isolators from 3PEAK. The series utilizes advanced capacitive isolation IP to replace traditional magnetic or optical isolators. The TPT7740 specifically denotes the four-channel configuration, distinguishing it from dual-channel or single-channel variants within the same family.

Replacement Considerations

Direct replacements include other quad-channel digital isolators with similar 3750VRMS ratings and 150Mbps speeds. Verify pinout compatibility before substitution. Functionally equivalent parts may exist from other manufacturers offering comparable isolation voltages and data rates.