NCP1083DEG DC-DC Power Conversion by ON Semiconductor

Integrated PoE-PD and DC-DC Converter Controller, 40 W, with Auxiliary Supply Support

Status: Active
Series: NCP1083
RoHS: Compliant
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The NCP1083 is a member of the ON Semiconductor high power HIPOâ„¢ Power over Ethernet Powered Device (PoE-PD) product family and represents a robust, flexible and highly integrated solution targeting demanding medium and high power Ethernet applications. It combines in a single unit an enhanced PoE-PD interface supporting the IEEE 802.3af and the upcoming draft IEEE 802.3at (D3.0) standard and a flexible and configurable DC-DC converter controller. The NCP1083's exceptional capabilities enable applications to smoothly transition from non-PoE to PoE enabled networks by also supporting power from auxiliary sources such as AC power adapters and battery supplies, eliminating the need for a second switching power supply. ON Semiconductor's unique manufacturing process and design enhancements allow the NCP1083 to deliver up to 25.5 W for the draft IEEE 802.3at (D3.0) standard and up to 40 W for proprietary high power PoE applications. The NCP1083 enables the draft IEEE 802.3at (D3.0) and implements a two event physical layer classification. Additional proprietary classification procedures support high power sourcing equipment (PSE) on the market. The unique high power features leverage the significant cost advantages of PoE-enabled systems to a much broader spectrum of products in emerging markets such as industrial ethernet devices, PTZ and Dome IP cameras, RFID readers, MIMO WLAN access points, high-end VoIP phones, notebooks, etc. The integrated current mode DC-DC controller facilitates isolated and non-isolated fly-back, forward and buck converter topologies. It has all the features necessary for a flexible, robust and highly efficient design including programmable switching frequency, duty cycle up to 80 percent, slope compensation, and soft start-up. The NCP1083 is fabricated in a robust high voltage process and integrates a rugged vertical N-channel DMOS with a low loss current sense technique suitable for the most demanding environments

Prices starting from US$2.29


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Logo for Newark Electronics Newark Electronics US$2.97
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Logo for Future Electronics Future Electronics US$2.29
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Logo for element14 element14 US$2.79
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Logo for Farnell Farnell US$2.30
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Features

Auxiliary supply support with an input down to 9 V DC in combination with an extended power range up to 40 W.
Improved robustness behavior against cable ESD. The NCP1083 reaches more then 4 kV on HBM and 3 kV for CESD.
A programmable operational current limit up to 1100 mA for extended power ranges up to 40 W.
Benefits
Eliminates the need for a second DC-DC converter to support traditional non-PoE power sources which may range down to 9 V.
Protects the device against cable transients and hot swap events that can occur in harsh environments and when installed outdoors.
Supports the IEEE802.3at and proprietary high power solutions beyond the standard up to 40 W.
Applications
Power over Ethernet Powered Devices (PoE-PD)
PoE in combination with a wall wart
Point of sale
WLAN MIMO access point
End Products
Wall-wart alternative
IP PTZ cameras
High end VoIP phones
Industiral high power equipment

Specifications

Description NCP1083
Compliance Pb-free Halide free
Topology Flyback
Phases 1
Control Mode Current Mode
VCC Max (V) 57
fSW Typ (kHz) 250
Package Type TSSOP-20

Alternative Descriptions

NCP1083DEG, POE-PD 40W DC-DC AUX SUPP | RS
Integrated Poe-Pd And Dc-Dc Converter Controller, 40 W, With Auxiliary Supply Support/Tube |Onsemi NCP1083DEG | Newark Electronics
Power Over Ethernet Controller 1 Channel 802.3at (PoE+), 802.3af (PoE) 20-TSSOP | Future Electronics
DC/DC CTRL, FLYBACK, 500KHZ, TSSOP-20 | Farnell


Frequently Asked Questions

Where can I find additional details, specifications and documents for a NCP1083DEG?

Additional datasheets, footprints and schematics for NCP1083DEG are listed on our Part Details page. You can also find images and similar parts to NCP1083DEG on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for NCP1083DEG on our Product Comparison page. Access via the 'View Pricing & Stock' button to view NCP1083DEG price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does NCP1083DEG fall under?

The NCP1083DEG is listed under Power Management > DC-DC Power Conversion > Controllers.

Can I view similar or alternative parts?

You can view similar parts to NCP1083DEG when available in the Controllers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the NCP1083DEG you can contact the distributor directly for product support, shipping queries etc.

Is the NCP1083DEG RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.

Which authorised distributors for NCP1083DEG have stock available?

Authorised distributors including RS, Newark Electronics, Future Electronics, element14 and Farnell have stock available or on a lead time for NCP1083DEG.

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