NCP1080_13 Datasheet, PDF (1/15 Pages) ON Semiconductor – Integrated PoE-PD & DC-DC Converter Controller

NCP1080
Integrated PoE-PD & DC-DC
Converter Controller
Introduction
The NCP1080 is a member of ON Semiconductor’s Power over
Ethernet Powered Device (PoE−PD) product family and represents a
robust, flexible and highly integrated solution targeting demanding
Ethernet applications. It combines in a single unit an enhanced
PoE−PD interface fully supporting the IEEE802.3af specification and
a flexible and configurable DC−DC 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
PoE−enabled 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 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 NCP1080 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 NCP1080 complements ON Semiconductor’s ASSP portfolio
in communications and industrial devices and can be combined with
other high−voltage interfacing devices to offer complete solutions to
the communication, industrial and security markets.
http://onsemi.com
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TSSOP−20 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 Pb−Free 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
• Over−temperature Protection
• Industrial Temperature Range −40°C to 85°C with Full
Operation up to 150°C Junction Temperature
• 0.6 W Hot−swap Pass−switch with Low Loss Current
Sense Technique
• Vertical N−channel DMOS Pass−switch Offers the
Robustness of Discrete MOSFETs with Integrated
Temperature Control
DC−DC Converter Controller
• Current Mode Control
• Supports Isolated and Non−isolated DC−DC Converter
Applications
• Internal Voltage Regulators
• Wide Duty Cycle Range with Internal Slope
Compensation Circuitry
• Programmable Oscillator Frequency
• Programmable Soft−start Time
© Semiconductor Components Industries, LLC, 2013
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May, 2013 − Rev. 7
Publication Order Number:
NCP1080/D