HCPL-9031-300

Overview

The HCPL-9031-300 is a general-purpose digital isolator manufactured by Broadcom Limited. It features two independent channels with unidirectional signal transmission. The device utilizes magnetic coupling technology for isolation, providing a rated insulation voltage of 2500 Vrms. It supports data rates up to 110 MBd and exhibits a typical propagation delay of 15 ns. Operating on a supply voltage range of 3 V to 5.5 V, the component is housed in an 8-SMD, Gull Wing package designed for surface mount installation.

Feature Summary

• Provides galvanic isolation between circuits using magnetic coupling technology.
• Supports high-speed digital signal transmission with low propagation delay.
• Features unidirectional channel configuration for simplified interface design.

Applications

• General-purpose digital isolation in industrial control systems
• Signal isolation in embedded computing interfaces
• Noise reduction in mixed-signal circuit environments

Procurement Notes

Verify current availability status as distribution may be limited or discontinued. Confirm package variant matches the SMD gull wing specification required for your PCB layout. Ensure compatibility with existing supply voltage levels within the 3 V to 5.5 V operating range before finalizing procurement decisions.

Selection Notes

Select this component when bidirectional isolation is not required. Verify that the 110 MBd data rate meets system timing requirements. Ensure the 2500 Vrms isolation rating satisfies safety standards for the specific application voltage. Check thermal dissipation capabilities within the 8-SMD package constraints.

Part Context

This part belongs to the HCPL-90xx series of high-speed digital isolators from Broadcom. The series utilizes giant magnetoresistive (GMR) sensing technology rather than traditional optical components. This family offers improved reliability and lower power consumption compared to legacy optocoupler solutions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for direct replacements or cross-reference compatible devices with similar isolation ratings and pin configurations.