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NCP1080 Datasheet

Integrated PoE-PD & DC-DC Converter Controller

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NCP1080
Integrated PoE-PD & DC-DC
Converter Controller
Introduction
The NCP1080 is a member of ON Semiconductor’s Power over
Ethernet Powered Device (PoEPD) product family and represents a
robust, flexible and highly integrated solution targeting demanding
Ethernet applications. It combines in a single unit an enhanced
PoEPD interface fully supporting the IEEE802.3af specification and
a flexible and configurable DCDC converter controller.
The NCP1080’s exceptional capabilities offer new opportunities for
the design of products powered directly over Ethernet lines,
eliminating the need for local power adaptors or power supplies and
drastically reducing the overall installation and maintenance cost.
ON Semiconductor’s unique manufacturing process and design
enhancements allow the NCP1080 to deliver up to 13 W of regulated
power to support PoE applications according to the IEEE802.3af
standard. This device leverages the significant cost advantages of
PoEenabled systems to a broad spectrum of products in markets such
as VoIP phones, wireless LAN access point, security cameras, point of
sales terminals, RFID readers, industrial ethernet devices, etc.
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 NCP1080 is fabricated in a robust high voltage process and
integrates a rugged vertical Nchannel 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 NCP1080 complements ON Semiconductor’s ASSP portfolio
in communications and industrial devices and can be combined with
other highvoltage interfacing devices to offer complete solutions to
the communication, industrial and security markets.
http://onsemi.com
1
TSSOP20 EP
DE SUFFIX
CASE 948AB
NCP1080 = Specific Device Code
XXXX = Date Code
Y = Assembly Location
ZZ = Traceability Code
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
Features
These are PbFree Devices
Powered Device Interface
Fully Supports IEEE802.3af Standard
Regulated Power Output up to 13 W
Programmable Classification Current
Adjustable Under Voltage Lock Out
Programmable Inrush Current Limit
Programmable Operational Current Limit up to 500 mA
Overtemperature Protection
Industrial Temperature Range 40°C to 85°C with Full
Operation up to 150°C Junction Temperature
0.6 W Hotswap Passswitch with Low Loss Current
Sense Technique
Vertical Nchannel DMOS Passswitch Offers the
Robustness of Discrete MOSFETs with Integrated
Temperature Control
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
© Semiconductor Components Industries, LLC, 2013
May, 2013 Rev. 7
1
Publication Order Number:
NCP1080/D


  ON Semiconductor Electronic Components Datasheet  

NCP1080 Datasheet

Integrated PoE-PD & DC-DC Converter Controller

No Preview Available !

NCP1080
VPORTP
CLASS
UVLO
INRUSH
ILIM1
VPORTN1
RTN
VPORTN2
TEST1
TEST2
PIN DIAGRAM
1
Exposed
Pad
(Top View)
SS
FB
COMP
VDDL
VDDH
GATE
ARTN
NC
CS
OSC
ORDERING INFORMATION
Part Number
Package
Shipping Configuration
Temperature Range
NCP1080DEG
TSSOP20 EP
(PbFree)
74 units / Tube
40°C to 85°C
NCP1080DER2G
TSSOP20 EP
(PbFree)
2500 / Tape & Reel
40°C to 85°C
†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
CLASS
UVLO
INRUSH
ILIM1
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
NC
VPORTN1,2
Figure 1. NCP1080 Block Diagram
ARTN
RTN
http://onsemi.com
2


Part Number NCP1080
Description Integrated PoE-PD & DC-DC Converter Controller
Maker ON Semiconductor
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NCP1080 Datasheet PDF






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