NCP1027 datasheet(1/30 Pages) ONSEMI

Il numero della parte	NCP1027

Spiegazioni elettronici	High?뭋oltage Switcher for Medium Power Offline SMPS Featuring Low Standby Power

Download	30 Pages

Scroll/Zoom	100%

Produttore elettronici	ONSEMI [ON Semiconductor]

Homepage	http://www.onsemi.com

Logo

1 / 30 page

December, 2006 − Rev. 3

1

Publication Order Number:

NCP1027/D

NCP1027

High−Voltage Switcher

for Medium Power Offline

SMPS Featuring Low

Standby Power

The NCP1027 offers a new solution targeting output power levels

from a few watts up to 15 W in a universal mains flyback application.

Our proprietary high−voltage technology lets us include a power

MOSFET together with a startup current source, all directly

connected to the bulk capacitor. To prevent lethal runaway in low

input voltage conditions, an adjustable brown−out circuitry blocks

the activity until sufficient input level is reached.

Current−mode operation together with an adjustable ramp

compensation offers superior performance in universal mains

applications. Furthermore, an Over Power Protection pin brings the

ability to precisely compensate all internal delays in high input voltage

conditions and optimize the maximum output current capability.

Protection wise, a timer detects an overload or a short−circuit and

stops all operations, ensuring a safe auto−recovery, low duty cycle burst

operation. An integrated, auto−recovery, Overvoltage Protection

permanently monitors the VCC level and temporarily shuts down the

driving pulses in case of an unexpected feedback loop runaway.

Finally, a great RDS(on) figure makes the circuit an excellent choice

for standby/auxiliary offline power supplies or applications requiring

higher output power levels.

Features

• Built−in 700 V MOSFET with Typical RDS(on) of 5.8 W, TJ = 25°C

• Current−Mode Fixed Frequency Operation: 65 kHz and 100 kHz

• Fixed Peak Current of 800 mA

• Skip−Cycle Operation at Low Peak Currents

• Internal Current Source for Clean and Lossless Startup Sequence

• Auto−Recovery Output Short Circuit Protection with Timer−Based

Detection

• Auto−Recovery Overvoltage Protection with Auxiliary Winding

Operation

• Programmable Brown−Out Input for Low Input Voltage Detection

• Programmable Over Power Protection

• Input to Permanently Latchoff the Part

• Internal Frequency Jittering for Improved EMI Signature

• Extended Duty Cycle Operation to 80% Typical

• No−Load Input Standby Power of 85 mW @ 265 Vac

• 500 mW Loaded, Input Power of 715 mW @ 230 Vac

• These are Pb−Free Devices

Typical Applications

• Medium Power AC−DC Adapters for Chargers

• Auxiliary/Standby Power Supplies for ATX and TVS Power Supplies

Reference

230 VAC

90−265 VAC

NCP1027 − 5.8

W

25 W*

15 W*

*Typical values, open−frame, 65 kHz version, RqJA < 75°C/W, TA = 50°C.

8−LEAD PDIP

P SUFFIX

CASE 626A

PIN CONNECTIONS

Device

Package

Shipping*

ORDERING INFORMATION

NCP1027P065G

PDIP−8

(Pb−Free)

50 Units / Rail

http://onsemi.com

MARKING

DIAGRAM

XXX = 65 or 100

A

= Assembly Location

WL = Wafer Lot

YY = Year

WW = Work Week

G

= Pb−Free Package

(Top View)

Ramp Comp.

VCC

Brown−Out

FB

Drain

P1027PXXX

AWL

YYWWG

GND

OPP

*For additional information on our Pb−Free strategy

and

soldering

details,

please

download

the

ON

Semiconductor

Soldering

and

Mounting

Techniques Reference Manual, SOLDERRM/D.

NCP1027P100G

PDIP−8

(Pb−Free)

50 Units / Rail

Codice articolo simile - NCP1027

Produttore elettronici	Il numero della parte	Scheda tecnica	Spiegazioni elettronici
ON Semiconductor	NCP1027	244Kb / 2P	300 W 80 PLUS ATX Reference Design Rev. 2, Oct-2006
	NCP1027	3Mb / 4P	AC-DC Offline Switching Controllers/Regulators Rev.0, Jun-2005
	NCP1027	739Kb / 6P	Power Factor Controllers Rev. 7, Sep-2006
	NCP1027P065G	526Kb / 30P	High-Voltage Switcher for Medium Power Offline SMPS Featuring Low Standby Power January, 2015 ??Rev. 5
	NCP1027P100G	526Kb / 30P	High-Voltage Switcher for Medium Power Offline SMPS Featuring Low Standby Power January, 2015 ??Rev. 5

More results

Descrizione simile - NCP1027

Produttore elettronici	Il numero della parte	Scheda tecnica	Spiegazioni elettronici
ON Semiconductor	NCP1028	633Kb / 29P	High?뭋oltage Switcher for Medium Power Offline SMPS Featuring Low Standby Power January, 2007 ??Rev. 0
	NCP1028	491Kb / 29P	High-Voltage Switcher for Medium Power Offline SMPS Featuring Low Standby Power January, 2015 ??Rev. 3
	NCP1027	526Kb / 30P	High-Voltage Switcher for Medium Power Offline SMPS Featuring Low Standby Power January, 2015 ??Rev. 5
	NCP1010	591Kb / 24P	Self--Supplied Monolithic Switcher for Low Standby--Power Offline SMPS December, 2010 -- Rev. 22
	NCP1014	324Kb / 24P	Self-Supplied Monolithic Switcher for Low Standby- Power Offline SMPS September, 2004 ??Rev. 10
	NCP1010	351Kb / 23P	Self-Supplied Monolithic Switcher for Low Standby-Power Offline SMPS September, 2014 ??Rev. 23
	NCP1015AP065G	403Kb / 22P	Self-Supplied Monolithic Switcher for Low Standby-Power Offline SMPS March, 2011 ??Rev. 3
	NCP1015	336Kb / 22P	Self-Supplied Monolithic Switcher for Low Standby- Power Offline SMPS October, 2007 - Rev. 1
	NCP1010	501Kb / 25P	Self-Supplied Monolithic Switcher for Low Standby- Power Offline SMPS August, 2021 - Rev. 25
	NCP1015	403Kb / 22P	Self-Supplied Monolithic Switcher for Low Standby-Power Offline SMPS March, 2011 ??Rev. 3

More results

NCP1027 Scheda tecnica(PDF) 1 Page - ON Semiconductor

NCP1027 Scheda tecnica(HTML) 1 Page - ON Semiconductor

Codice articolo simile - NCP1027

Descrizione simile - NCP1027

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Scheda tecnica Scarica

Link URL