TD541S-40L3

Overview

The TD541S-40L3 is a digital isolator from the TD541S-4xHx series manufactured by Mornsun America, LLC. It features four channels with a 5000VDC isolation voltage and 75kV/µs common-mode transient immunity. The device supports data rates up to 150Mbps with a maximum propagation delay of 13ns. It operates on a single 3.3V supply (2.25V ~ 3.75V) and utilizes capacitive coupling technology. Packaged in a 16-BDFN surface-mount case, it functions as an SPI-compatible isolator with integrated power capabilities.

Feature Summary

• Provides robust signal isolation via capacitive coupling technology for high-speed data transmission
• Integrates isolated power conversion capabilities within the digital isolator structure
• Ensures reliable operation under high electromagnetic interference with specified common-mode transient immunity

Applications

• Industrial communication systems requiring galvanic isolation
• SPI interface signal transmission between different voltage domains
• Medical equipment needing reinforced isolation barriers

Procurement Notes

Verify the specific suffix configuration against the official datasheet to ensure correct voltage and channel alignment. Confirm RoHS compliance status and check for any recent UL certification updates or validity periods associated with this component before finalizing procurement decisions.

Selection Notes

Select this component when a 3.3V supply domain requires four-channel isolation with integrated power functionality. It is suitable for applications demanding high CMTI and moderate data rates within a compact surface-mount footprint compared to standard optocouplers.

Part Context

This part belongs to the TD541S-4xHx family of digital isolators with integrated power. It shares architectural similarities with variants like TD541S-40H3 but differs in supply voltage requirements and pinout configurations. The series is designed for space-constrained industrial and automotive applications.

Replacement Considerations

TD541S-40H3 is listed as a parameter-equivalent substitute within the same manufacturer lineup.