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參數(shù)資料
| 型號： | NCP1028P100G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | High−Voltage Switcher for Medium Power Offline SMPS Featuring Low Standby Power |
| 中文描述： | 0.88 A SWITCHING REGULATOR, 110 kHz SWITCHING FREQ-MAX, PDIP7 |
| 封裝： | LEAD FREE, PLASTIC, DIP-8/7 |
| 文件頁數(shù)： | 1/29頁 |
| 文件大?。?/td> | 643K |
| 代理商： | NCP1028P100G |
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Semiconductor Components Industries, LLC, 2007
January, 2007
Rev. 0
1
Publication Order Number:
NCP1028/D
NCP1028
HighVoltage Switcher
for Medium Power Offline
SMPS Featuring Low
Standby Power
The NCP1028 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.
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
Built
in 700 V MOSFET with Typical R
DS(on)
of 5.8 , T
J
= 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
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
NCP1028
5.8
25 W*
15 W*
*Typical values, open
frame, 65 kHz version, R
JA
< 75
°
C/W, T
A
= 50
°
C.
**For additional information on our Pb
Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques Reference
Manual, SOLDERRM/D.
8
LEAD PDIP
P SUFFIX
CASE 626A
PIN CONNECTIONS
Device
Package
Shipping
*
ORDERING INFORMATION
NCP1028P065G
PDIP
8
(Pb
Free)
50 Units / Rail
http://onsemi.com
MARKING
DIAGRAM
xxx
A
WL
YY
WW
G
= 65 or 100
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb
Free Package
(Top View)
Ramp Comp.
V
CC
Brown
Out
FB
Drain
P1028Pxxx
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.
NCP1028P100G
PDIP
8
(Pb
Free)
50 Units / Rail
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