TD541S-40L5

Overview

The TD541S-40L5 is a four-channel digital isolator from Mornsun America, LLC, designed for SPI applications. It features integrated isolated DC-DC conversion and utilizes capacitive coupling technology. The device provides 5000VDC isolation voltage with a minimum common-mode transient immunity of 75kV/µs. It supports data rates up to 150Mbps, with maximum propagation delays of 13ns and typical rise/fall times of 2.5ns. Operating on a 4.75V to 5.25V supply, it functions within -40°C to 125°C and is housed in a 16-BDFN surface-mount package.

Feature Summary

• Integrates an isolated DC-DC converter to eliminate the need for external isolated power supplies
• Employs capacitive coupling technology for high-speed signal transmission
• Provides enhanced isolation voltage ratings for robust noise immunity

Applications

• SPI communication interfaces requiring galvanic isolation
• Industrial automation systems with mixed-signal ground domains
• Medical equipment requiring reinforced isolation barriers

Procurement Notes

Verify the specific channel configuration (0 forward, 4 reverse) against system requirements before ordering. Confirm that the 16-BDFN package dimensions fit the PCB layout constraints. Ensure the operating temperature range meets the environmental specifications of the final assembly. Check for RoHS3 compliance if required by regulatory standards.

Selection Notes

Select this component when a single-chip solution for four-channel isolation with integrated power is needed. Compare propagation delay and CMTI specifications against other isolators in the TD541S series. Consider the 16-BDFN footprint availability during the design phase. Verify compatibility with the target SPI clock speeds and voltage levels.

Part Context

This part belongs to the TD541S-4xH(L)x series, which are four-channel digital isolators with integrated isolated DC-DC converters. The '40' designation indicates a specific channel direction configuration (0 forward, 4 reverse). The 'L5' suffix typically denotes specific insulation or packaging variants within the family.

Replacement Considerations

TD541S-40H5 is a parameter-equivalent alternative within the same series. Other substitutes include TD541S-41H3, TD541S-41L3, and TD541S-41L5, though channel configurations may differ.