NCP1075P065G Datasheet, PDF (1/28 Pages) ON Semiconductor – High-Voltage Switcher for Low Power Offline SMPS

NCP1070, NCP1071,
NCP1072, NCP1075,
NCP1076, NCP1077
High-Voltage Switcher for
Low Power Offline SMPS
The NCP107x products integrate a fixed frequency current mode
controller with a 700 V MOSFET. Available in a PDIP−7 or SOT−223
package, the NCP107x offer a high level of integration, including
soft−start, frequency−jittering, short−circuit protection, skip−cycle, a
maximum peak current set point, ramp compensation, and a Dynamic
Self−Supply (eliminating the need for an auxiliary winding).
Unlike other monolithic solutions, the NCP107x is quiet by nature:
during nominal load operation, the part switches at one of the available
frequencies (65, 100 or 130 kHz). When the output power demand
diminishes, the IC automatically enters frequency foldback mode and
provides excellent efficiency at light loads. When the power demand
reduces further, it enters into a skip mode to reduce the standby
consumption down to a no load condition.
Protection features include: a timer to detect an overload or a
short−circuit event, Overvoltage Protection with auto−recovery and
AC input line voltage detection.
For improved standby performance, the connection of an auxiliary
winding stops the DSS operation and helps to reduce input power
consumption below 50 mW at high line.
http://onsemi.com
MARKING
DIAGRAMS
SOT−223
ST SUFFIX
CASE 318E
AYW
107xyG
G
1
PDIP−7
P SUFFIX
CASE 626A
P107xPyyy
AWL
YYWWG
x
= Current Limit (0, 1, 2, 5, 6 or 7)
y
= Oscillator Frequency
=A (65 kHz), B (100 kHz), C (130 kHz)
yyy = 065, 100, 130
A
= Assembly Location
WL = Wafer Lot
Y, YY = Year
W, WW = Work Week
G or G = Pb−Free Package
Features
• Built−in 700 V MOSFET with R_DS(on) of 4.7 W
(NCP1076/77) / 11 W (NCP1072/75) / 22 W
(NCP1070/71)
• Large Creepage Distance Between High−voltage Pins
• Current−Mode Fixed Frequency Operation – 65 / 100 /
130 kHz
• Peak Current: NCP1070/72 with 250 mA, NCP1071
with 350 mA, NCP1075 with 450 mA, NCP1076 with
650 mA and NCP1077 with 800 mA
• Fixed Ramp Compensation
• Skip−Cycle Operation at Low Peak Currents Only: No
Acoustic Noise!
• Dynamic Self−Supply: No Need for an Auxiliary
Winding
• Internal 1 ms Soft−Start
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 26 of this data sheet.
• Auto−Recovery Output Short Circuit Protection with
Timer−Based Detection
• Auto−Recovery Overvoltage Protection with Auxiliary
Winding Operation
• Frequency Jittering for Better EMI Signature, Including
Frequency Foldback Mode
• No Load Input Consumption < 50 mW
• Frequency Foldback to Improve Efficiency at Light
Load
• Internal Temperature Shutdown
• These are Pb−Free Devices
Typical Applications
• Auxiliary / Standby Isolated Power Supplies White
Goods / Smart Meter / E−Meter
© Semiconductor Components Industries, LLC, 2014
1
February, 2014 − Rev. 0
Publication Order Number:
NCP1070/D