HCPL-091J-500

Overview

The HCPL-091J-500 is a high-speed digital isolator from Broadcom Limited, featuring four independent channels in a 16-pin SOIC package. It supports data rates up to 110 MBd with a propagation delay of 12 ns and a common-mode transient immunity of 15 kV/µs. The device operates on supply voltages between 3 V and 5.5 V, drawing 3.3 mA per side. It provides 2500 Vrms isolation voltage and functions within a temperature range of -40°C to +100°C.

Feature Summary

• Provides bidirectional signal transmission across four isolated channels
• Ensures high noise immunity through magnetic coupling technology
• Maintains CMOS logic compatibility for direct interface with standard digital circuits

Applications

• Isolating parallel buses in industrial control systems
• Protecting peripheral interfaces in embedded computing
• Signal isolation in data conversion devices

Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout and electrical characteristics. Confirm RoHS compliance status as it varies by revision. Check current availability as this component may be discontinued or subject to long lead times. Ensure the selected variant matches the required isolation voltage and channel count for the target application.

Selection Notes

Select this component when four-channel isolation is required for high-speed digital signals. Compare propagation delay and power consumption against other Broadcom HCPL series options. Verify that the 16-pin SOIC footprint fits the PCB layout constraints. Ensure the operating voltage range aligns with the system's power supply rails.

Part Context

This part belongs to the HCPL-09xJ family of high-density digital isolators. These components are designed to replace traditional optocouplers in applications requiring higher speed and better reliability. The family includes variants with different channel counts and packaging options to suit various design needs.

Replacement Considerations

HCPL-091J-000E: Same functional specifications but potentially different packaging or tape-and-reel configuration.