IL 3522VE

Overview

The IL 3522VE is a digital isolator from the NVE IsoLoop series, utilizing Giant Magnetoresistive (GMR) technology. It provides three unidirectional channels with a data rate of 40 Mbps and a maximum propagation delay of 35 ns. The device offers 6000 Vrms reinforced isolation and supports supply voltages of 3V to 5.5V or 4.5V to 5.5V. It features a minimum common-mode transient immunity of 30 kV/µs and operates within a temperature range of -55°C to 125°C in a 16-SOIC package.

Feature Summary

• Utilizes Giant Magnetoresistive (GMR) technology for signal transmission without optical components.
• Provides reinforced electrical isolation rated at 6000 Vrms between input and output sides.
• Features high common-mode transient immunity to maintain signal integrity in noisy environments.

Applications

• RS422 communication interface isolation
• RS485 communication interface isolation
• Industrial control system signal isolation

Procurement Notes

Verify component authenticity through authorized distributors due to discontinued status risks. Confirm RoHS compliance requirements as standard versions may not meet current regulations. Validate specific voltage supply ranges against design specifications before procurement.

Selection Notes

Select this component for applications requiring robust magnetic isolation technology over traditional optical methods. Ensure the 40 Mbps data rate meets system timing requirements. Verify that the 16-SOIC package dimensions fit the target PCB layout constraints.

Part Context

This part belongs to the IL3522 series of digital isolators designed for high-reliability industrial applications. The IsoLoop family leverages GMR sensors to provide isolation without the degradation issues associated with LEDs found in optocouplers.

Replacement Considerations

IL 3522E is listed as a similar alternative by the manufacturer. Verify pinout compatibility and specific voltage range differences when considering substitutes.

FAQ

What is the maximum common-mode transient immunity?

The IL 3522VE has a minimum common-mode transient immunity of 30 kV/µs.

Does this device support bidirectional communication?

No, the IL 3522VE consists of unidirectional channels only.