ADUM3470WARSZ

Overview

The ADUM3470WARSZ is a four-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It integrates PWM control and transformer drivers for isolated DC/DC conversion. The device supports bidirectional signal transmission at data rates up to 25 Mb/s with an insulation voltage of 2500 Vrms. Operating within a supply range of 3 V to 5.5 V, it features propagation delays of approximately 60 ns and operates across temperatures from -40°C to +105°C. Packaged in SSOP-20, it meets AEC-Q100 automotive standards.

Feature Summary

• Integrates PWM controller and transformer driver for isolated power generation
• Provides bidirectional isolation for four independent channels
• Utilizes iCoupler magnetic coupling for high common-mode transient immunity

Applications

• Isolated DC/DC converter designs
• Industrial fieldbus isolation
• Power supply bias circuits

Procurement Notes

Verify the specific suffix 'W' indicates wide-body packaging when confirming part authenticity. Ensure compatibility with required thermal management solutions for the SSOP-20 form factor. Cross-reference the latest datasheet revision for any pinout or electrical parameter updates prior to finalizing procurement orders.

Selection Notes

Select this component for applications requiring integrated isolated power generation alongside signal isolation. The bidirectional nature suits feedback loops and two-way communication protocols. Verify that the 25 Mb/s data rate aligns with system timing requirements and that the 2500 Vrms insulation rating satisfies safety clearance needs.

Part Context

This part belongs to the ADuM347x series of digital isolators. It shares core architecture with variants like ADUM3471 and ADUM3472 but differs in channel directionality. The series is designed to replace traditional optocouplers and discrete transformers in compact industrial and automotive systems.

Replacement Considerations

ADUM3470CRSZ

FAQ

What is the primary function of the integrated circuitry?

It combines four-channel digital isolation with a PWM controller and transformer driver to generate isolated power.

Does this device support bidirectional communication?

Yes, the ADUM3470WARSZ supports bidirectional signal transmission across all four channels.