ISO7741FTADWRQ1

Overview

The ISO7741FTADWRQ1 is an automotive-grade, quad-channel reinforced digital isolator manufactured by Texas Instruments. It integrates a 160-kHz transformer driver within the isolation barrier, eliminating external components. The device features four channels with a 3-forward and 1-reverse configuration, supporting data rates up to 100 Mb/s. It operates on a supply voltage range of 2.25 V to 5.5 V with a typical quiescent current of 6.3 mA. Key electrical parameters include a propagation delay of 13 ns, rise/fall times of 3.9 ns, and a common-mode transient immunity (CMTI) of 100 kV/µs. It provides a working isolation voltage of 1500 Vrms and withstands 5000 Vrms. The component is housed in a 16-pin SOIC (DW) package and functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a 160-kHz transformer driver for simplified design
• Provides reinforced insulation suitable for automotive safety applications
• Offers high common-mode transient immunity for noisy environments
• Features low power consumption with shutdown capability

Applications

• Automotive battery management systems
• Electric vehicle charging infrastructure
• Inverter control circuits
• Motor drive interfaces

Procurement Notes

Verify the specific suffix 'FTADWRQ1' to confirm the inclusion of the integrated transformer driver and automotive qualification. Ensure the order matches the SOIC-16 package code DW. Confirm AEC-Q100 certification status if required for your specific system validation. Check datasheet revisions for any updates regarding thermal characteristics or pin configurations before finalizing procurement.

Selection Notes

Select this component when a reinforced isolated solution with an integrated transformer driver is required for automotive systems. It is suitable for designs needing high CMTI and low propagation delay. Compare against standard ISO7741 variants if the transformer driver is unnecessary, as those may offer different power profiles. Ensure the 1500 Vrms working isolation meets the system's safety requirements.

Part Context

This part belongs to the ISO774xTA-Q1 family of high-performance, reinforced digital isolators. Unlike standard ISO7741 devices, the TA variant includes an internal transformer driver, reducing external bill of materials. It is designed specifically for automotive applications requiring functional safety capabilities. The family shares similar pinouts but differs in internal architecture and isolation ratings compared to non-TA series parts.

Replacement Considerations

ISO7741FBDWR is a non-automotive equivalent without the integrated transformer driver. ISO7741QDWRQ1 is a related automotive part but lacks the transformer driver feature. Verify compatibility with existing transformer drivers if substituting with non-TA variants.