NCP1095DBR2

Overview

The NCP1095DBR2 is a PoE-PD interface controller from onsemi, compliant with IEEE 802.3af/at and 802.3bt standards. It integrates detection, classification, and current limiting functions for Powered Devices (PD). The device supports high-power applications up to 90W or 100W via external components. Key electrical parameters include an operating voltage range of 0V to 57V and a junction temperature range of -40°C to +125°C. It features a typical surge current limit of 110mA and an equivalent detection resistance of 23.7kΩ to 26.3kΩ. The component is housed in a TSSOP-16 package.

Feature Summary

• Supports IEEE 802.3af/at and 802.3bt standards with autogating capabilities
• Integrates detection, classification, and current limiting stages
• Provides power good indication and auxiliary power detection
• Includes overcurrent and overtemperature protection mechanisms

Applications

• High-power PoE-powered devices requiring 802.3bt compliance
• Network infrastructure equipment such as access points
• IP cameras and video surveillance systems
• IoT endpoints with significant power demands

Procurement Notes

Verify the specific suffix DBR2 against official datasheets to confirm the tape-and-reel packaging configuration. Ensure compatibility with RoHS directives and lead-free requirements. Confirm moisture sensitivity levels and recommended reflow soldering profiles prior to assembly. Validate that the ordering part number matches the exact pinout and functional specifications required for the design.

Selection Notes

Select this controller for designs requiring integrated PoE-PD functionality without external discrete logic for detection. It is suitable for applications needing support for higher power classes defined in the 802.3bt standard. Consider the TSSOP-16 package constraints for PCB layout. Evaluate thermal management needs given the wide operating temperature range and potential high-power dissipation scenarios.

Part Context

This component belongs to the NCP109x family of PoE-PD controllers from onsemi. It serves as a specialized interface solution for Ethernet-powered devices, simplifying compliance with evolving Power over Ethernet standards. The family focuses on integrating critical PD functions into a single compact IC to reduce bill-of-materials complexity.

Replacement Considerations

Check for direct substitutes within the NCP109x series, such as the NCP1096, which may offer integrated FETs. Verify pin-to-pin compatibility and functional equivalence before substitution. Consult official cross-reference lists for any updated revisions or alternative packages.