參數(shù)資料
型號(hào)： NCP1027P065G
廠商： ON SEMICONDUCTOR
元件分類(lèi)： 穩(wěn)壓器
英文描述： High−Voltage Switcher for Medium Power Offline SMPS Featuring Low Standby Power
中文描述： 0.8 A SWITCHING REGULATOR, 71.5 kHz SWITCHING FREQ-MAX, PDIP8
封裝： LEAD FREE, PLASTIC, DIP-8
文件頁(yè)數(shù)： 1/30頁(yè)
文件大?。?/td> 607K
代理商： NCP1027P065G
Semiconductor Components Industries, LLC, 2006
December, 2006 Rev. 3
1
Publication Order Number:
NCP1027/D
NCP1027
HighVoltage 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 highvoltage 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 brownout circuitry blocks
the activity until sufficient input level is reached.
Currentmode 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 shortcircuit and
stops all operations, ensuring a safe autorecovery, low duty cycle burst
operation. An integrated, autorecovery, Overvoltage Protection
permanently monitors the V
CC
level and temporarily shuts down the
driving pulses in case of an unexpected feedback loop runaway.
Finally, a great R
DS(on)
figure makes the circuit an excellent choice
for standby/auxiliary offline power supplies or applications requiring
higher output power levels.
Features
Builtin 700 V MOSFET with Typical R
DS(on)
of 5.8 , T
J
= 25
°
C
CurrentMode Fixed Frequency Operation: 65 kHz and 100 kHz
Fixed Peak Current of 800 mA
SkipCycle Operation at Low Peak Currents
Internal Current Source for Clean and Lossless Startup Sequence
AutoRecovery Output Short Circuit Protection with TimerBased
Detection
AutoRecovery Overvoltage Protection with Auxiliary Winding
Operation
Programmable BrownOut 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
NoLoad Input Standby Power of 85 mW @ 265 Vac
500 mW Loaded, Input Power of 715 mW @ 230 Vac
These are PbFree Devices
Typical Applications
Medium Power ACDC Adapters for Chargers
Auxiliary/Standby Power Supplies for ATX and TVS Power Supplies
Reference
230 VAC
90265 VAC
NCP1027 5.8
25 W*
15 W*
*Typical values, openframe, 65 kHz version, R
JA
< 75
°
C/W, T
A
= 50
°
C.
8LEAD PDIP
P SUFFIX
CASE 626A
PIN CONNECTIONS
Device
Package
Shipping
*
ORDERING INFORMATION
NCP1027P065G
PDIP8
(PbFree)
50 Units / Rail
http://onsemi.com
MARKING
DIAGRAM
XXX = 65 or 100
A
= Assembly Location
WL = Wafer Lot
YY
= Year
WW = Work Week
G
= PbFree Package
(Top View)
Ramp Comp.
V
CC
BrownOut
FB
Drain
P1027PXXX
AWL
YYWWG
GND
OPP
*For additional information on our PbFree strategy
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
NCP1027P100G
PDIP8
(PbFree)
50 Units / Rail
相關(guān)PDF資料
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