TPT7741-SO3R

Overview

The TPT7741-SO3R is a general-purpose digital isolator from the TPT774x series, manufactured by 3PEAK. It features four unidirectional channels housed in a 16-SOIC package with a width of 0.154 inches (3.90mm). The device provides an isolation voltage of 3750Vrms and supports data rates up to 150Mbps. It exhibits a common-mode transient immunity (CMTI) of 150kV/µs. The input configuration consists of three inputs on Side 1 and one input on Side 2.

Feature Summary

• Provides robust signal isolation with high common-mode transient immunity for reliable data transmission in noisy environments
• Supports high-speed communication with a maximum data rate of 150Mbps across four independent channels
• Features unidirectional channel architecture suitable for separating logic levels between different circuit domains

Applications

• General-purpose digital isolation in industrial automation systems
• Isolating microcontroller interfaces in measurement and control equipment
• Signal isolation in power supply feedback loops

Procurement Notes

Verify the specific suffix SO3R corresponds to the 16-SOIC package variant when sourcing. Confirm that the required isolation voltage and data rate meet the design specifications. Ensure compatibility with the intended input/output voltage levels. Check for availability of the tape-and-reel packaging format if automated assembly is planned. Validate that the component meets necessary safety certifications for the target application region.

Selection Notes

Select this component when unidirectional isolation is required for multiple signals within a single package. The 150Mbps speed rating makes it suitable for moderate-to-high speed serial communications. Consider the 3750Vrms isolation rating for applications requiring strong galvanic separation. The 16-pin form factor allows for compact PCB layouts compared to discrete solutions.

Part Context

This part belongs to the TPT774x series of digital isolators from 3PEAK. It is designed to replace optocouplers in many applications, offering higher speed and better reliability. The series typically includes variants with different channel counts and package options to suit various design constraints.

Replacement Considerations

Direct replacements may include other 4-channel digital isolators with similar isolation ratings and pinouts. Verify that substitute parts support the same 150Mbps data rate and 3750Vrms isolation level. Check for compatible package dimensions to ensure mechanical fit without PCB redesign.