ISO7741FEDWQ1

Overview

The ISO7741FEDWQ1 is a reinforced quad-channel digital isolator from Texas Instruments, designed for automotive applications. It features four independent channels with three forward and one reverse direction, operating at data rates up to 100 Mb/s. The device provides 5000 Vrms isolation voltage and utilizes capacitive coupling technology. It operates within a supply voltage range of 2.25 V to 5.5 V, consuming typical currents of 8.6 mA and 18 mA on respective sides. Propagation delay is 10.7 ns, with rise and fall times of 4.1 ns. It functions between -40°C and +150°C, housed in a 16-pin SOIC package.

Feature Summary

• Automotive Grade 0 qualification for high-temperature reliability
• Reinforced electromagnetic compatibility robustness
• High common-mode transient immunity capability

Applications

• Automotive powertrain control systems
• Inverter gate drive isolation
• On-board charging (OBC) interfaces

Procurement Notes

Verify the specific suffix 'FED' confirms Automotive Grade 0 classification and extended temperature range up to 150°C. Confirm package type is tube rather than reel or cut tape. Ensure AEC-Q100 compliance matches project requirements. Check for end-of-life status as some sources indicate potential obsolescence for related variants.

Selection Notes

Select this component when reinforced isolation and extreme temperature operation are required. The unidirectional polarity suits signal flow from controller to actuator. Compare against standard grade variants if lower cost suffices for non-critical zones. Ensure PCB layout supports the 16-SOIC footprint and creepage distances for 5000 Vrms isolation.

Part Context

Part of the ISO7741 family of digital isolators. Distinguished by the 'FE' suffix indicating Automotive Grade 0 and higher thermal performance compared to standard Grade 1 parts. Shares pinout with other ISO774x variants but differs in qualification and temperature limits.

Replacement Considerations

ISO7741FEDWRQ1 offers identical electrical specifications in a reel package. ISO7741QDWQ1 is a Grade 1 alternative with lower temperature rating. Verify functional equivalence before substitution.