ADUM3470WARSZ-RL7

Overview

The ADUM3470WARSZ-RL7 is a four-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It integrates a PWM controller and transformer driver to support isolated DC/DC power conversion with up to 2W output. The device features bidirectional channels supporting data rates up to 25 Mb/s and provides 2500 Vrms isolation voltage. It operates within a temperature range of -40°C to +105°C and meets AEC-Q100 automotive qualification standards. Packaged in an SSOP-20 format, it eliminates the need for separate isolated converters in 2W designs.

Feature Summary

• Integrates PWM controller and transformer driver for isolated DC/DC power generation
• Provides bidirectional signal isolation via magnetic coupling technology
• Supports high-speed data transmission up to 25 Mb/s across four independent channels
• Delivers robust electrical isolation with 2500 Vrms rating

Applications

• Isolated DC/DC converter bias supply circuits
• RS-232, RS-422, and RS-485 transceiver isolation
• Industrial fieldbus isolation interfaces
• Gate drive isolation for power switches
• Isolated sensor interface applications

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity upon receipt, as the reel packaging requires specific handling procedures. Cross-reference the manufacturer part number against official datasheets to ensure correct revision levels. Check for any applicable safety certifications relevant to your specific end-use environment before integration.

Selection Notes

Select this component when a combined solution for signal isolation and isolated power generation is required. It is suitable for designs needing up to 2W of isolated power without external magnetics. Consider the SSOP-20 footprint constraints and thermal requirements. Ensure the 2500 Vrms isolation rating meets the system's safety clearance needs. Verify compatibility with the target input voltage range of 3V to 5.5V.

Part Context

This part belongs to the ADuM347x series of four-channel digital isolators. The series utilizes chip-level transformer technology to provide small-size, fully isolated solutions. These devices are designed to replace traditional optocouplers and discrete isolated power supplies in space-constrained applications requiring high reliability and speed.

Replacement Considerations

Other variants within the ADUM347x family may offer different channel configurations or polarity options. Direct substitutes include other ADUM3470 revisions or similar iCoupler-based isolators from Analog Devices. Always verify pinout compatibility and functional equivalence before swapping components.