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NCP1081DER2G The ON Semiconductor NCP1081DER2G is an integrated Power over Ethernet (PoE) Powered Device (PD) interface and DC-DC converter controller. It supports IEEE802.3af and 802.3at standards, delivering up to 40W.
Mfr Part #:

NCP1081DER2G

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor NCP1081DER2G is an integrated Power over Ethernet (PoE) Powered Device (PD) interface and DC-DC converter controller. It supports IEEE802.3af and 802.3at standards, delivering up to 40W.
✓ Total Stock: 3,235 pcs
$ Price Range: $1.57

NCP1081DER2G Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Xingangxin ✓
Non-Authorised Inventory information
3,235 pcs
On Request
3235 pcs On Request 1 On Request On Request On Request On Request On Request
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NCP1081DER2G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Auxiliary Sense
Internal Switch(s)
Mounting Type
Number of Channels
Operating Temperature
Power
Standards
Supplier Device Package
Supplier Package
Type
Voltage
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NCP1081DER2G Description

Short technical summary and product information.

The ON Semiconductor NCP1081DER2G is a highly integrated solution for demanding medium and high power Ethernet applications. It combines an enhanced PoE-PD interface supporting IEEE802.3af and 802.3at standards with a flexible DC-DC converter controller. This device enables products to be powered directly over Ethernet lines, eliminating the need for local power adaptors and reducing installation costs.

 

Key features include support for IEEE802.3at two-event physical layer classification and proprietary classification procedures for high power PSE. The integrated current mode DC-DC controller facilitates isolated and non-isolated fly-back, forward, and buck converter topologies. It offers programmable switching frequency, duty cycle up to 80 percent, slope compensation, and soft start-up.

 

The NCP1081DER2G operates within an industrial temperature range of -40°C to 85°C and supports power ranges up to 40W for proprietary applications. It is fabricated in a robust high voltage process and integrates a rugged vertical N-channel DMOS suitable for demanding environments.

 

This controller is available in a 20-TSSOP (0.173", 4.40mm Width) Exposed Pad package, designed for surface mounting. It operates over a voltage range of 0V to 57V and supports 1 channel.

NCP1081DER2G Quick Information

Product Type: PoE Controller
Series: NCP1081
Canonical Name: NCP1081DER2G Integrated High Power PoE-PD Interface & DC-DC Converter Controller
Subcategory: DC-DC Converter Controller

NCP1081DER2G Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

NCP1081DER2G Estimated Pricing

Qty Low High
1+ $1.57 $1.57

Estimated market price range - modelled values for guidance only, not live distributor offers.

NCP1081DER2G Features

  • Integrated PoE-PD interface and DC-DC controller.
  • Supports IEEE802.3af and 802.3at standards.
  • Delivers up to 40W for high power applications.
  • Wide operating voltage from 0V to 57V.
  • Industrial temperature range of -40°C to 85°C.

NCP1081DER2G Applications

  • Powering devices over Ethernet networks.
  • Industrial Ethernet applications.
  • IP cameras and RFID readers.
  • High-end VoIP phones.
  • Notebook power solutions.

NCP1081DER2G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the NCP1081DER2G?

The operating voltage range is 0V to 57V.

What is the power output of the NCP1081DER2G?

The power output is 40W.

How many channels does the NCP1081DER2G have?

It has 1 channel.

What PoE standards does the NCP1081DER2G support?

It supports IEEE 802.3af (PoE) and 802.3at (PoE+).

What is the operating temperature range of the NCP1081DER2G?

The operating temperature range is -40°C to 85°C.

What is the package type of the NCP1081DER2G?

It comes in a 20-TSSOP with exposed pad (20-TSSOP-EP), surface mount.

Does the NCP1081DER2G have internal switches?

Yes, it includes both high-side and low-side internal switches.

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