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NCP1010_14 Datasheet, PDF (1/23 Pages) ON Semiconductor – Self-Supplied Monolithic Switcher for Low Standby-Power Offline SMPS | |||
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NCP1010, NCP1011,
NCP1012, NCP1013,
NCP1014
Self-Supplied Monolithic
Switcher for Low Standby-
Power Offline SMPS
The NCP101X series integrates a fixedâfrequency currentâmode
controller and a 700 V MOSFET. Housed in a PDIPâ7 or SOTâ223
package, the NCP101X offers everything needed to build a rugged and
lowâcost power supply, including softâstart, frequency jittering,
shortâcircuit protection, skipâcycle, a maximum peak current setpoint
and a Dynamic SelfâSupply (no need for an auxiliary winding).
Unlike other monolithic solutions, the NCP101X is quiet by nature:
during nominal load operation, the part switches at one of the available
frequencies (65 â 100 â 130 kHz). When the current setpoint falls
below a given value, e.g. the output power demand diminishes, the IC
automatically enters the soâcalled skipâcycle mode and provides
excellent efficiency at light loads. Because this occurs at typically 1/4
of the maximum peak value, no acoustic noise takes place. As a result,
standby power is reduced to the minimum without acoustic noise
generation.
Shortâcircuit detection takes place when the feedback signal fades
away, e.g. in true shortâcircuit conditions or in broken Optocoupler
cases. External disabling is easily done either simply by pulling the
feedback pin down or latching it to ground through an inexpensive
SCR for complete latchedâoff. Finally softâstart and frequency
jittering further ease the designer task to quickly develop lowâcost and
robust offline power supplies.
For improved standby performance, the connection of an auxiliary
winding stops the DSS operation and helps to consume less than
100 mW at high line. In this mode, a builtâin latched overvoltage
protection prevents from lethal voltage runaways in case the
Optocoupler would brake. These devices are available in economical
8âpin dualâinâline and 4âpin SOTâ223 packages.
http://onsemi.com
MARKING
DIAGRAMS
4
4
SOTâ223
CASE 318E
1
ST SUFFIX
AYW
101xy G
G
1
8
1
PDIPâ7
CASE 626A
AP SUFFIX
P101xAPyy
AWL
YYWWG
1
x
= Current Limit (0, 1, 2, 3, 4)
y
= Oscillator Frequency
A (65 kHz), B (100 kHz), C (130 kHz)
yy
= 06 (65 kHz), 10 (100 kHz), 13 (130 kHz)
A
= Assembly Location
WL = Wafer Lot
YY, Y = Year
WW, W = Work Week
G or G = PbâFree Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 21 of this data sheet.
Features
⢠Builtâin 700 V MOSFET with Typical RDSon of 11 W
and 22 W
⢠Large Creepage Distance Between HighâVoltage Pins
⢠CurrentâMode Fixed Frequency Operation:
65 kHz â 100 kHz â 130 kHz
⢠SkipâCycle Operation at Low Peak Currents Only:
No Acoustic Noise!
⢠Dynamic SelfâSupply, No Need for an Auxiliary
Winding
⢠Internal 1.0 ms SoftâStart
⢠Latched Overvoltage Protection with Auxiliary
Winding Operation
⢠Frequency Jittering for Better EMI Signature
⢠AutoâRecovery Internal Output ShortâCircuit
Protection
⢠Below 100 mW Standby Power if Auxiliary Winding
is Used
⢠Internal Temperature Shutdown
⢠Direct Optocoupler Connection
⢠SPICE Models Available for TRANsient Analysis
⢠These are PbâFree and HalideâFree Devices
Typical Applications
⢠Low Power AC/DC Adapters for Chargers
⢠Auxiliary Power Supplies (USB, Appliances,TVs, etc.)
© Semiconductor Components Industries, LLC, 2014
1
September, 2014 â Rev. 23
Publication Order Number:
NCP1010/D
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