NCP1091DBG

Overview

The NCP1091DBG is a Hot Swap Voltage Controller from onsemi, designed for IEEE 802.3af PoE-PD applications. It integrates an interface controller with current limiting of 500 mA and a maximum supply voltage of 57 V. The device operates within a temperature range of -40°C to +85°C and utilizes an SOIC-8 surface-mount package.

Feature Summary

• Integrates IEEE 802.3af PoE-PD interface controller functionality
• Provides power failure detection capabilities
• Supports hot swap operations via integrated current limiting

Applications

• PoE Powered Device (PoE-PD) interface control
• Hot swap voltage regulation in network equipment

Procurement Notes

Verify the End-of-Life status prior to procurement, as discontinuance notifications exist for this component series. Confirm that the SOIC-8 package variant matches design requirements. Ensure compliance with humidity sensitivity classifications during storage and handling procedures.

Selection Notes

Select this component for designs requiring integrated PoE interface control and hot swap protection. Verify compatibility with 57 V maximum input limits. Consider the SOIC-8 footprint constraints and industrial temperature range specifications against system thermal profiles.

Part Context

Part of the NCP109x family of high-power HIPO Ethernet供电 devices. This series integrates IEEE 802.3af compliant controllers. The DBG suffix indicates the specific SOIC-8 package configuration offered by onsemi for this controller line.

Replacement Considerations

Check for direct substitutes within the NCP1090 or NCP1092 families if pinout compatibility allows. Verify functional equivalence for PoE-PD interface control before substitution.