HCPL-091J

Digital Isolators Overview

The HCPL-091J is a high-speed digital isolator from the Broadcom HCPL-09xx series, housed in a 16-pin SOIC package. It provides four bidirectional channels with a data rate of 100 Mb/s and a propagation delay of 15 ns. The device operates on a supply voltage between 3 V and 5.5 V, drawing 3.3 mA of current. It features magnetic coupling for isolation, supporting an insulation voltage of 2500 Vrms. The component functions within a temperature range of -40°C to +100°C, with rise and fall times of 4 ns.

Digital Isolators Feature Summary

• Utilizes symmetric magnetic coupling technology for signal transmission across isolation barriers.
• Provides high channel density with four independent bidirectional logic paths in a compact surface-mount package.
• Designed for excellent transient immunity specifications to maintain signal integrity in noisy environments.

Digital Isolators Applications

• Isolating data conversion devices such as ADCs and DACs
• Protecting parallel buses in industrial control systems
• Securing peripheral interfaces in embedded computing

Digital Isolators Procurement Notes

Verify the specific suffix (e.g., -000E) against the original design requirements, as packaging and compliance details may vary. Confirm availability status, as this component may be discontinued or subject to limited distribution. Ensure the selected variant matches the required operating temperature range and pinout configuration for your PCB layout.

Digital Isolators Selection Notes

Select this component when four isolated bidirectional channels are required for high-speed digital signals. Consider the 16-pin SOIC footprint for space-constrained designs. Evaluate the 2500 Vrms isolation rating against system safety standards. Compare power consumption and propagation delay against alternative isolators if timing constraints are critical.

Digital Isolators Part Context

This part belongs to the HCPL-09xx family of CMOS digital isolators manufactured by Broadcom Limited. These devices are engineered for applications requiring robust signal isolation with minimal power consumption. The family includes variants with different channel counts and package options, all sharing the core magnetic coupling architecture.

Digital Isolators Replacement Considerations

Public confirmed substitute part numbers: HCPL-090J, HCPL-901J, HCPL-902J.