ISOW7741FBDFMR

Overview

The ISOW7741FBDFMR is a reinforced, quad-channel digital isolator from Texas Instruments featuring an integrated DC-DC converter. It provides galvanic isolation with a data rate of 100 Mb/s and insulation voltage of 5000 Vrms. The device operates within a supply voltage range of 2.97 V to 5.5 V, consuming 280 uA in low-power mode. Key electrical parameters include a propagation delay of 15 ns, rise/fall times of approximately 3.26 ns/3.2 ns, and pulse width distortion of 0.9 ns. It supports unidirectional signal transmission across four channels in a 20-SOIC package.

Feature Summary

• Integrates a high-efficiency DC-DC converter for isolated power generation
• Provides reinforced galvanic isolation for safety-critical applications
• Features low electromagnetic emissions and low ripple output
• Offers quad-channel configuration with shutdown capability

Applications

• Industrial automation systems requiring robust signal isolation
• Medical equipment needing reinforced isolation standards
• Automotive electronics demanding high reliability
• Power metering and energy management systems

Procurement Notes

Verify the specific suffix 'FBDFMR' against the official Texas Instruments datasheet to confirm the tape-and-reel packaging and temperature grade. Ensure compatibility with system voltage levels and isolation requirements before procurement. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status as indicated in the product specifications.

Selection Notes

Select this component when reinforced isolation and integrated power conversion are required in a single package. It is suitable for designs needing low EMI and high CMTI performance. Compare channel count and isolation voltage ratings against alternative isolators. Consider the SOIC-20 footprint constraints and thermal dissipation capabilities during PCB layout planning.

Part Context

This device belongs to the ISOW774x family of digital isolators with integrated power converters. It complements other TI isolators by combining signal isolation and power delivery in one compact solution. The series targets applications where board space is limited and multiple isolated domains require independent power sources.

Replacement Considerations

Direct replacements may include ISOW7740FDFMR or ISOW7743FDFMR from the same family. Verify pinout compatibility and electrical parameter alignment before substitution. Ensure the replacement maintains the required reinforcement isolation rating and integrated converter functionality.