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Overview
| Topology | Flyback Converter |
| Input voltage | 36-57 V |
| Switching frequency | 100-500 kHz |
| Output 1 | 12 V / 2.5 A |
Description
The NCP1083 is a member of ON Semiconductor’s high power HIPO 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 802.3at 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 IEEE 802.3at standard and up to 40 W for proprietary high power PoE applications. The NCP1083 enables the IEEE 802.3at and implements a two event physical layer classification. Additional proprietary classification procedures support high power power sourcing equipment (PSE) on the market. The unique high power features leverage the significant cost advantages of PoE− enabled systems to 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 and capable of withstanding harsh environments such as hot swap and cable ESD events.The NCP1083 complements ON Semiconductor’s ASSP portfolio in industrial devices and can be combined with stepper motor drivers, CAN bus drivers and other high− voltage interfacing devices to offer complete solutions to the industrial and security market
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.
- Improved robustness behavior against cable ESD. The NCP1083 reaches more then 4 kV on HBM and 3 kV for CESD.
- 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.
Typical applications
- PoE in combination with a wall wart, Power over Ethernet Powered Devices (PoE-PD)
- Wall-wart alternative, IP PTZ cameras
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | λPeak G typ.(nm) | λPeak Y typ.(nm) | IV typ.(mcd) | IV G typ.(mcd) | IV Y typ.(mcd) | VF typ.(V) | VF G typ.(V) | VF Y typ.(V) | Chip Technology | 2θ50% typ.(°) | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | Q(%) | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | xPxC | Variant | Ports | Shielding | Tab | EMI | LED | Application System | IR(mA) | Working Voltage(V (AC)) | Mount | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR 2(mA) | RDC max.(Ω) | Type | Pins | PCB/Cable/Panel | Modularity | Wire Section | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WL-SMCW SMT Mono-color Chip LED Waterclear, 570 nm, Bright Green | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]570 nm | Emitting ColorBright Green | Peak Wavelength [typ.]572 nm | – | – | Luminous Intensity [typ.]40 mcd | – | – | Forward Voltage [typ.]2 V | – | – | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | Size0603 | Operating Temperature -40 °C up to +85 °C | – | – | – | – | Length1.6 mm | Width0.8 mm | Height0.7 mm | – | PackagingTape and Reel | – | – | – | – | – | – | – | – | – | – | MountSMT | – | – | – | – | – | – | – | – | – | – | ||||
 | WE-CBF SMT EMI Suppression Ferrite Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Size0805 | Operating Temperature -55 °C up to +125 °C | – | – | – | – | Length2 mm | Width1.2 mm | Height0.9 mm | Pad Dimension0.5 mm | – | – | – | – | – | – | – | – | – | Rated Current800 mA | – | MountSMT | Impedance @ 100 MHz1000 Ω | Maximum Impedance1000 Ω | Maximum Impedance100 MHz | Rated Current 21000 mA | DC Resistance0.3 Ω | TypeHigh Current | – | – | – | – | ||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | Capacitance22 pF | Capacitance±5% | Rated Voltage16 V (DC) | Size0402 | Operating Temperature -55 °C up to +125 °C | Q-Factor840 % | – | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Length1 mm | Width0.5 mm | Height0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | Capacitance10 nF | Capacitance±10% | Rated Voltage16 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor3.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | Capacitance100 nF | Capacitance±10% | Rated Voltage16 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor3.5 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | Capacitance220 nF | Capacitance±10% | Rated Voltage16 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor5 % | Insulation Resistance2.3 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | Capacitance1 µF | Capacitance±10% | Rated Voltage16 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor10 % | Insulation Resistance0.1 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | Capacitance47 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor3 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | Capacitance2.2 µF | Capacitance±10% | Rated Voltage16 V (DC) | Size0805 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor10 % | Insulation Resistance0.05 GΩ | Ceramic TypeX7R Class II | Length2 mm | Width1.25 mm | Height1.25 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | Capacitance100 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0805 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor2.5 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Length2 mm | Width1.25 mm | Height0.8 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | Capacitance10 µF | Capacitance±20% | Rated Voltage16 V (DC) | Size0805 | Operating Temperature -55 °C up to +85 °C | – | Dissipation Factor10 % | Insulation Resistance0.01 GΩ | Ceramic TypeX5R Class II | Length2 mm | Width1.25 mm | Height1.25 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
 | WR-MJ Cat 3 Modular Jacks – THT, –, – | Simulation– | Downloads7 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-MJ Cat 3 Modular Jacks – THT | – | – | – | Peak Wavelength (Green) [typ.]569 nm | Peak Wavelength (Yellow) [typ.]588 nm | – | Luminous Intensity (Green) [typ.]15 mcd | Luminous Intensity (Yellow) [typ.]12 mcd | – | Forward Voltage (Green) [typ.]2.23 V | Forward Voltage (Yellow) [typ.]2.1 V | – | – | – | – | – | – | Operating Temperature -40 °C up to +85 °C | – | – | Insulation Resistance500 MΩ | – | – | – | – | – | PackagingTray | Number of Pins (xPxC)8P8C | – | Ports1x1 | ShieldingShielded | Tab PositionUp | EMI FingersYes | LED (Left-Right)yellow-green | Application SystemCAT 3 | Rated Current1500 mA | Working Voltage120 V (AC) | MountTHT | – | – | – | – | – | TypeHorizontal | – | – | – | – | ||
 | WR-TBL Series 322 - 3.81 mm Horizontal PCB Header, –, – | Simulation– | Downloads6 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 322 - 3.81 mm Horizontal PCB Header | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | – | Length8.81 mm | – | – | – | PackagingBox | – | – | – | – | – | – | – | – | Rated Current10500 mA | Working Voltage300 V (AC) | MountTHT | – | – | – | – | – | TypePCB Header | Pins2 | PCB/Cable/PanelCable | ModularityNo | – | ||
 | WR-TBL Series 361 - 3.81 mm Vertical, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 361 - 3.81 mm Vertical | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | – | Length7.62 mm | – | – | – | PackagingBox | – | – | – | – | – | – | – | – | Rated Current10500 mA | Working Voltage300 V (AC) | MountCable | – | – | – | – | – | TypeVertical | Pins2 | PCB/Cable/PanelCable | ModularityNo | Wire Section 16 to 26 (AWG) 1.31 to 0.129 (mm²) | |||
 | WR-TBL Series 381 - 2.50 mm Vertical CAB Entry Plug Screwless, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | – | Length15.6 mm | – | – | – | PackagingBox | – | VariantScrewless | – | – | – | – | – | – | Rated Current4000 mA | Working Voltage160 V (AC) | MountCable | – | – | – | – | – | TypeVertical | Pins6 | PCB/Cable/PanelCable | ModularityNo | Wire Section 28 to 20 (AWG) 0.08 to 0.5 (mm²) | ||||
 | WR-TBL Series 382 - 2.50 mm Horizontal PCB Header, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 382 - 2.50 mm Horizontal PCB Header | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | – | Length17 mm | – | – | – | PackagingBox | – | – | – | – | – | – | – | – | Rated Current4000 mA | Working Voltage160 V (AC) | MountTHT | – | – | – | – | – | TypeHorizontal | Pins6 | PCB/Cable/PanelPCB | ModularityNo | – | |||
 | WR-PHD Pin Header - Single, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | Insulation Resistance1000 MΩ | – | Length5.08 mm | – | – | – | PackagingBag | – | – | – | – | – | – | – | – | Rated Current3000 mA | Working Voltage250 V (AC) | MountTHT | – | – | – | – | – | TypeStraight | Pins2 | – | – | – |