4DIR0400HXUMA1

Overview

The Infineon Technologies 4DIR0400HXUMA1 is a quad-channel digital isolator from the ISOFACE™ family, utilizing magnetic coupling technology. It provides 5700 Vrms isolation voltage and supports data rates up to 40 Mbps with a common-mode transient immunity of 100 kV/µs. The device operates within a temperature range of -40°C to +125°C and is supplied in a PG-DSO-16 package. This component is AEC-Q100 qualified for automotive applications.

Feature Summary

• Quad-channel unidirectional signal isolation using magnetic coupling technology
• High-speed data transmission capability supporting 40 Mbps rates
• Robust insulation performance with 5700 Vrms isolation voltage rating
• Automotive-grade qualification compliant with AEC-Q100 standards

Applications

• Automotive electronic control units requiring galvanic isolation
• Industrial communication interfaces such as CAN and LIN buses
• Motor drive systems needing high-voltage protection
• Power conversion equipment with isolated signal paths

Procurement Notes

Verify current lifecycle status as sources indicate this part may be scheduled for obsolescence or discontinued. Confirm package variant matches requirements, as suffixes denote specific tape-and-reel configurations. Ensure compatibility with existing design constraints before procurement due to potential availability limitations.

Selection Notes

Select this component when high channel density and automotive reliability are required. The 4-channel configuration reduces board space compared to single-channel alternatives. Verify that the 40 Mbps speed meets system timing requirements and that the PG-DSO-16 footprint fits the PCB layout constraints.

Part Context

This device belongs to the ISOFACE™ family of digital isolators designed for harsh environments. It replaces older optocoupler technologies by offering higher speed and lower power consumption. The 4DIR0400HA series is specifically engineered for automotive applications demanding high reliability and long-term stability under extreme thermal conditions.

Replacement Considerations

Check manufacturer announcements for end-of-life notices. Identify equivalent parts within the same ISOFACE™ family or newer generations that maintain pin compatibility and electrical specifications. Validate that any substitute meets the same AEC-Q100 automotive qualification standards.