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ONSEMI NCP1091DRG PoE Power Controller

The NCP1091 is a high-performance Power over Ethernet powered device interface controller supporting IEEE 802.3af standard. It features detection, classification with programmable current, undervoltage lockout, inrush limiting, and power-good indication, making it ideal for industrial and security applications. The device incorporates robust high-voltage processes, a vertical N-channel DMOS pass switch, and offers adjustable UVLO thresholds. Its thermal shutdown, over-temperature protection, and operation over -40°C to 85°C ensure reliability in harsh environments, enabling seamless integration with PoE-powered devices and auxiliary power sources.

Authorized Distributors
Part No:NCP1091DRG
Stock:1624
Inv Date:06-11-2026
Price: Unit price: $1.33
Buy/RFQ:
Part No:NCP1091DRG
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.61
Buy/RFQ:

ONSEMI NCP1091DRG PoE Power Controller Specifications:

  • Supports IEEE 802.3af standard for PoE detection and classification
  • Classification current programmable between 9.8 V and 24 V thresholds
  • Adjustable UVLO threshold via external resistor (Vuvlo_off 29.6 V to 31 V, Vuvlo_on 37 V to 40 V)
  • Maximum input voltage VPORTP and VPORTN up to 87 V
  • Inrush current limit range 75 mA to 170 mA (typical 120 mA)
  • Operational current limit up to 575 mA
  • Power good signal with threshold at 1 V typical, open-drain output
  • Thermal shutdown at 150°C with 15°C hysteresis
  • Junction temperature range from -40°C to 125°C, operation up to 85°C ambient
  • Package options: SOIC-8 and TSSOP-8 with high thermal resistance
  • ESD protection: 2 kV HBM, 500 V CDM, 200 V MM
  • Designed for harsh industrial environments with robust rugged vertical N-channel DMOS

Buy the ON Semiconductor Series PoE-PD Interface: NCP1091 Driver

Discover the NCP1091 PoE-PD interface controller from ON Semiconductor, engineered for industrial environments. It supports detection, classification, UVLO, inrush limiting, and power-good signaling, enabling efficient PoE device operation. Built with a rugged high-voltage process and vertical N-channel DMOS, it ensures durability against harsh conditions such as hot swap and ESD events. Easy to integrate with existing systems, it enhances security and industrial automation solutions. Purchase online today and optimize your PoE powered systems with trusted performance and reliability.

Buy ON Semiconductor NCP1091 now and experience unmatched reliability and performance in industrial PoE power management.

Frequently Asked Questions

Where can I buy ONSEMI NCP1091DRG?

You can click on the BUY or RFQ button to purchase NCP1091DRG from an authorized ONSEMI distributor.

How do I troubleshoot issues or seek technical support for part NCP1091DRG?

You can download the NCP1091DRG datasheet or visit the ONSEMI website for support.

Who is the manufacturer of NCP1091DRG?

ONSEMI

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