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NCP1083 Datasheet

Integrated High Power PoE-PD Interface & DC-DC Converter Controller

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NCP1083
Integrated High Power
PoE-PD Interface & DC-DC
Converter Controller with
9 V Auxiliary Supply Support
Introduction
http://onsemi.com
The NCP1083 is a member of ON Semiconductor’s high power
HIPO Power over Ethernet Powered Device (PoEPD) product family
and represents a robust, flexible and highly integrated solution
TSSOP20 EP
DE SUFFIX
targeting demanding medium and high power Ethernet applications. It
combines in a single unit an enhanced PoEPD interface supporting
1 CASE 948AB
the IEEE 802.3af and the 802.3at standard and a flexible and
configurable DCDC converter controller.
The NCP1083’s exceptional capabilities enable applications to
smoothly transition from nonPoE 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
NCP1083 = Specific Device Code
XXXX = Date Code
Y = Assembly Location
ZZ = Traceability Code
leverage the significant cost advantages of PoEenabled systems to a
much broader spectrum of products in emerging markets such as
industrial ethernet devices, PTZ and Dome IP cameras, RFID readers,
ORDERING INFORMATION
See detailed ordering and shipping information in the package
MIMO WLAN access points, highend VoIP phones, notebooks, etc.
dimensions section on page 2 of this data sheet.
The integrated current mode DCDC controller facilitates
isolated and nonisolated flyback, 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 startup.
The NCP1083 is fabricated in a robust high voltage
9 V Front, Rear and Direct Auxiliary Supply Connections
Supporting the IEEE 802.3af and the 802.3at Standard
Supports IEEE 802.3at Two Event Layer 1
Classification
High Power Layer 1 Classification Indicator
Extended Power Ranges up to 40 W
process and integrates a rugged vertical Nchannel DMOS Programmable Classification Current
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
Adjustable Under Voltage Lock Out
Programmable Inrush Current Limit
Programmable Operational Current Limit up to
1100 mA for Extended Power Ranges
Overtemperature Protection
voltage interfacing devices to offer complete solutions to the Industrial Temperature Range 40°C to 85°C with Full
industrial and security market.
Operation up to 150°C Junction Temperature
Features
These are PbFree Devices
0.6 W HotSwap Passswitch with Low Loss Current
Sense Technique
Vertical Nchannel DMOS Passswitch Offers the
Powered Device Interface
Robustness of Discrete MOSFETs with Integrated
Flexible Auxiliary Power Supply Support
Temperature Control
© Semiconductor Components Industries, LLC, 2013
May, 2013 Rev. 3
1
Publication Order Number:
NCP1083/D


  ON Semiconductor Electronic Components Datasheet  

NCP1083 Datasheet

Integrated High Power PoE-PD Interface & DC-DC Converter Controller

No Preview Available !

NCP1083
DCDC Converter Controller
Current Mode Control
Supports Isolated and Nonisolated DCDC Converter
Applications
Internal Voltage Regulators
Wide Duty Cycle Range with Internal Slope
Compensation Circuitry
Programmable Oscillator Frequency
Programmable Softstart Time
VPORTP
CLASS
UVLO
INRUSH
ILIM1
VPORTN1
RTN
VPORTN2
AUX
TEST
PIN DIAGRAM
1
Exposed
Pad
SS
FB
COMP
VDDL
VDDH
GATE
ARTN
nCLASS_AT
CS
OSC
ORDERING INFORMATION
Part Number
Temperature Range
Package
(Top View)
Shipping Configuration
NCP1083DEG
40°C to 85°C
TSSOP20 EP
(PbFree)
74 units / Tube
NCP1083DER2G
40°C to 85°C
TSSOP20 EP
(PbFree)
2500 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specification Brochure, BRD8011/D.
VPORTP
AUX
CLASS
UVLO
INRUSH
ILIM1
VPORTN1,2
DETECTION
AUXILIARY
SUPPLY
DETECTION
INTERNAL
SUPPLY
&
BANDGAP
CLASSIFICATION
UVLO
VPORT
MONITOR
INRUSH
ILIM1
HOT SWAP SWITCH
CONTROL & CURRENT
LIMIT BLOCKS
THERMAL
SHUT
DOWN
VDDH
VDDL
VDDH
VDDL
VDDL
VDDL
5 mA
DCDC
CONVERTER
CONTROL
VDDL
5 K 1.2 V
OSC
VDDH
SS
FB
COMP
CS
OSC
GATE
VDDL
20 mA
nCLASS_AT
ARTN
RTN
Figure 1. NCP1083 Block Diagram
http://onsemi.com
2


Part Number NCP1083
Description Integrated High Power PoE-PD Interface & DC-DC Converter Controller
Maker ON Semiconductor
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NCP1083 Datasheet PDF






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