HCPL-090J

Digital Isolators Overview

The HCPL-090J is a quad-channel digital isolator from Broadcom Limited, housed in a 16-pin SOIC-Narrow package. It operates on a supply voltage between 3 V and 5.5 V with a typical current consumption of 3.3 mA. The device supports a data rate of 110 MBd and offers a common mode transient immunity of 15 kV/µs. Key electrical parameters include a maximum propagation delay of 15 ns, pulse width distortion of 3 ns, and an isolation voltage rating of 2500 Vrms.

Digital Isolators Feature Summary

• Provides four independent bidirectional signal channels for high-speed data transmission across isolation barriers.
• Features CMOS-compatible logic levels suitable for direct interfacing with standard TTL and CMOS circuits.
• Delivers robust electromagnetic interference rejection through high common mode transient immunity specifications.

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation for sensor interfaces
• Medical equipment needing safe patient isolation and signal integrity
• Power electronics control circuits for motor drives and inverters

Digital Isolators Procurement Notes

Verify the specific suffix code to confirm RoHS compliance status, as some variants may differ. Confirm package availability since distribution channels vary by region. Check for end-of-life notifications or obsolescence warnings before finalizing design-in decisions. Ensure the selected variant matches the required insulation voltage ratings for your safety standards.

Digital Isolators Selection Notes

Select this component when four isolated channels are required within a single compact footprint. Compare against the HCPL-091J if bidirectional channel configuration is preferred over unidirectional setups. Evaluate power consumption requirements against the 3.3 mA typical draw. Consider the 15 ns propagation delay for timing-sensitive applications.

Digital Isolators Part Context

This part belongs to the HCPL-900J series of quad-channel digital isolators. The series includes variants like HCPL-091J which offer different channel direction configurations. These devices utilize magnetic coupling technology to achieve high-speed isolation without optical components.

Digital Isolators Replacement Considerations

HCPL-091J serves as a functional alternative with identical electrical characteristics but features two forward and two reverse channels instead of four unidirectional paths.