ADUM3472ARSZ

Overview

The ADUM3472ARSZ is a quad-channel digital isolator from Analog Devices, housed in an SSOP-20 package. It features magnetic coupling isolation with a rated insulation voltage of 2500 Vrms and supports data rates up to 25 Mb/s. The device operates on a supply voltage between 3 V and 5.5 V, with a typical propagation delay of 55 ns. It includes an integrated PWM controller and transformer driver for isolated DC-to-DC converters. The component functions bidirectionally, offers high common-mode transient immunity, and operates within a temperature range of -40°C to +105°C.

Feature Summary

• Integrates a PWM controller and transformer driver for isolated power conversion
• Provides four independent bidirectional signal channels
• Utilizes iCoupler magnetic technology for galvanic isolation

Applications

• Isolated DC-to-DC converter control circuits
• Industrial automation systems requiring signal isolation
• Medical equipment with safety isolation requirements

Procurement Notes

Verify the specific suffix and packaging configuration against official Analog Devices documentation before procurement. Confirm availability status as distribution listings may indicate limited stock or discontinuation. Ensure the part number matches the exact pinout and electrical specifications required for your design integration.

Selection Notes

Select this component when an integrated solution for both signal isolation and isolated power management is required. The built-in transformer driver simplifies the design of flyback or forward converters. Compare channel count and isolation voltage ratings against alternative general-purpose isolators if power control integration is not needed.

Part Context

This part belongs to the ADUM347x series of digital isolators. It is distinct from the ADUM348x series by its lower insulation voltage rating and integrated power control features. The ARSZ designation indicates the SSOP-20 package variant.

Replacement Considerations

Check for ADUM3472ARSZ-RL7 for reel packaging equivalents. Verify compatibility with ADUM3470 or ADUM3471 if bidirectional functionality without integrated power control is acceptable.