ADUM6403CRWZ-RL

Overview

The ADUM6403CRWZ-RL is a quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It integrates an isolated DC/DC converter providing up to 400 mW of regulated power at 3.3 V or 5.0 V. The device offers four unidirectional signal channels with a data rate of 25 Mb/s and a common-mode transient immunity of 25 kV/µs. Key electrical parameters include a 5000 Vrms insulation voltage, propagation delay of 60 ns, and rise/fall times of 2.5 ns. It operates within a supply voltage range of 3 V to 5.5 V and functions across an industrial temperature range of -40°C to +105°C.

Feature Summary

• Integrates an isolated DC/DC converter delivering regulated 3.3 V or 5.0 V output power up to 400 mW
• Provides four unidirectional signal isolation channels using magnetic coupling technology
• Features high common-mode transient immunity for reliable noise rejection in harsh environments

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced safety isolation
• Power electronics control circuits with high-voltage interfaces

Procurement Notes

Verify the specific suffix (RL) indicates reel packaging when ordering. Confirm the required output voltage configuration (3.3 V or 5.0 V) matches the application design, as this may affect part selection within the series. Check current availability status as supply can be limited. Ensure the SOIC-16 package footprint aligns with the PCB layout requirements before finalizing procurement.

Selection Notes

Select this component when a single IC solution is needed for both signal isolation and isolated power generation. Compare against discrete solutions to evaluate board space savings. Consider the 25 Mb/s data rate limit for high-speed communication needs. Verify that the 5000 Vrms isolation rating meets the safety standards of the target system. Evaluate thermal performance given the 400 mW power dissipation capability.

Part Context

This part belongs to the ADuM6403 series of isoPower digital isolators. It combines analog and RF circuitry on silicon with air-gap transformer technology. The series is designed to replace bulky optocouplers and transformers in applications demanding high reliability and small form factors. It is manufactured by Analog Devices Inc. using specialized CMOS processes.

Replacement Considerations

Check for direct pin-compatible alternatives within the ADUM64xx family. Verify if the ADUM6400 or ADUM6401 variants meet the channel count and power requirements. Ensure any substitute maintains the same SOIC-16 package and isolation voltage ratings.