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NCP1010, NCP1011,
NCP1012, NCP1013,
NCP1014
Self-
-Supplied Monolithic
Switcher for Low Standby-
-
Power Offline SMPS
The NCP101X series integrates a fixed-
-frequency current-
-mode
controller and a 700 V MOSFET. Housed in a PDIP- 7,
-
PDIP- Gull Wing, or SOT-
-7
-223 package, the NCP101X offers
everything needed to build a rugged and low-
-cost power supply,
including soft-
-start, frequency jittering, short-
-circuit protection,
skip-
-cycle, a maximum peak current setpoint and a Dynamic
Self-
-Supply (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 - 100 - 130 kHz). When the current setpoint falls
-
-
below a given value, e.g. the output power demand diminishes, the IC
automatically enters the so-
-called skip-
-cycle 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.
Short-
-circuit detection takes place when the feedback signal fades
away, e.g. in true short-
-circuit 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 latched-
-off. Finally soft-
-start and frequency
jittering further ease the designer task to quickly develop low-
-cost 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 built- latched overvoltage
-in
protection prevents from lethal voltage runaways in case the
Optocoupler would brake. These devices are available in economical
8-
-pin dual- -line and 4-
-in-
-pin SOT-
-223 packages.
Features
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MARKING DIAGRAMS
4
4
1
SOT-
-223
CASE 318E
ST SUFFIX
1
PDIP-
-7
CASE 626A
AP SUFFIX
1
PDIP-
-7
(Gull Wing)
CASE 626AA
APL SUFFIX
1
1
P101xAPyy
AWL
YYWWG
AYW
101xy
G
G
8
1
x
y
1xAPLyyy
AWL
YYWWG
= Current Limit (0, 1, 2, 3, 4)
= Oscillator Frequency
A (65 kHz), B (100 kHz), C (130 kHz)
yy
= 06 (65 kHz), 10 (100 kHz), 13 (130 kHz)
yyy
= 065, 100, 130
A
= Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G
or G = Pb--Free 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.
Built--in 700 V MOSFET with Typical R
DSon
of 11
Ω
and 22
Ω
Large Creepage Distance Between High-
-Voltage Pins
Current-
-Mode Fixed Frequency Operation:
65 kHz – 100 kHz - 130 kHz
-
Skip-
-Cycle Operation at Low Peak Currents Only:
No Acoustic Noise!
Dynamic Self-
-Supply, No Need for an Auxiliary
Winding
Internal 1.0 ms Soft-
-Start
Latched Overvoltage Protection with Auxiliary
Winding Operation
Frequency Jittering for Better EMI Signature
Auto--Recovery Internal Output Short--Circuit
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 Pb-
-Free and Halide-
-Free Devices
Typical Applications
Low Power AC/DC Adapters for Chargers
Auxiliary Power Supplies (USB, Appliances,TVs, etc.)
Semiconductor Components Industries, LLC, 2010
December, 2010 - Rev. 22
-
1
Publication Order Number:
NCP1010/D
NCP1010, NCP1011, NCP1012, NCP1013, NCP1014
PIN CONNECTIONS
PDIP-
-7
V
CC
1
NC 2
GND 3
FB 4
(Top View)
5 DRAIN
8 GND
7 GND
V
CC
1
NC 2
GND 3
FB 4
(Top View)
5 DRAIN
PDIP-
-7
(Gull Wing)
8 GND
7 GND
V
CC
FB
DRAIN
1
2
3
(Top View)
4
GND
SOT-
-223
Indicative Maximum Output Power from NCP1014
R
DSon
- Ip
-
11
Ω
-- 450 mA DSS
11
Ω
-- 450 mA Auxiliary Winding
230 Vac
14 W
19 W
100 - 250 Vac
-
6.0 W
8.0 W
1. Informative values only, with: Tamb = 50C, Fswitching = 65 kHz, circuit mounted on minimum copper area as recommended.
Vout
+
+
100--250 Vac
1
2
3
8
7
+
4
5
NCP101X
GND
Figure 1. Typical Application Example
Quick Selection Table
NCP1010
R
DSon
[Ω]
Ipeak [mA]
Freq [kHz]
65
100
100
130
65
22
250
100
130
65
250
100
130
65
NCP1011
NCP1012
NCP1013
11
350
100
130
65
450
100
NCP1014
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2
NCP1010, NCP1011, NCP1012, NCP1013, NCP1014
PIN FUNCTION DESCRIPTION
Pin No.
(SOT-
-223)
1
Pin No.
(PDIP-
-7,
PDIP-
-7/Gull Wing)
1
Pin Name
V
CC
Function
Powers the Internal Circuitry
Description
This pin is connected to an external capacitor of typic-
ally 10
mF.
The natural ripple superimposed on the
V
CC
participates to the frequency jittering. For im-
proved standby performance, an auxiliary V
CC
can be
connected to Pin 1. The V
CC
also includes an active
shunt which serves as an opto fail--safe protection.
--
--
By connecting an optocoupler to this pin, the peak
current setpoint is adjusted accordingly to the output
power demand.
The internal drain MOSFET connection.
--
--
--
--
--
2
2
3
4
NC
GND
FB
--
The IC Ground
Feedback Signal Input
3
--
--
4
5
--
7
8
Drain
--
GND
GND
Drain Connection
--
The IC Ground
The IC Ground
V
CC
V
CC
1
Vclamp*
IV
CC
I?
Startup Source
Drain
Iref = 7.4 mA
IV
CC
--
+
Rsense
8 GND
UVLO
Management
High when V
CC
<
3 V
R
S
Q
250 ns
L.E.B.
NC 2
4V
Reset
EMI Jittering
65, 100 or
130 kHz
Clock
Set
Flip--Flop
DCmax = 65%
Reset
18 k
Error flag armed?
V
CC
Q
Driver
7
GND
GND 3
0.5 V
Overload?
+
--
--
+
+
Soft--Start
Startup Sequence
Overload
--
FB 4
Drain
5 Drain
*Vclamp = VCC
OFF
+ 200 mV (8.7 V Typical)
Figure 2. Simplified Internal Circuit Architecture
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3
NCP1010, NCP1011, NCP1012, NCP1013, NCP1014
MAXIMUM RATINGS
Rating
Power Supply Voltage on all pins, except Pin 5 (Drain)
Drain Voltage
Drain Current Peak during Transformer Saturation
NCP1010/11
NCP1012/13/14
Maximum Current into Pin 1 when Activating the 8.7 V Active Clamp
Thermal Characteristics
P Suffix, Case 626A
Junction--to--Lead
Junction--to--Air, 2.0 oz (70
mm)
Printed Circuit Copper Clad
0.36 Sq. Inch (2.32 Sq. Cm)
1.0 Sq. Inch (6.45 Sq. Cm)
PL Suffix (Gull Wing), Case 626AA
Junction--to--Lead
Junction--to--Air, 2.0 oz (70
mm)
Printed Circuit Copper Clad
0.36 Sq. Inch (2.32 Sq. Cm)
1.0 Sq. Inch (6.45 Sq. Cm)
ST Suffix, Plastic Package Case 318E
Junction--to--Lead
Junction--to--Air, 2.0 oz (70
mm)
Printed Circuit Copper Clad
0.36 Sq. Inch (2.32 Sq. Cm)
1.0 Sq. Inch (6.45 Sq. Cm)
Maximum Junction Temperature
Storage Temperature Range
ESD Capability, Human Body Model (All pins except HV)
ESD Capability, Machine Model
Symbol
V
CC
--
I
DS(pk)
Value
--0.3 to 10
--0.3 to 700
550
1.0
15
Unit
V
V
mA
A
mA
C/W
R
θJL
R
θJA
9.0
77
60
11.9
92
71
14
74
55
150
--60 to +150
2.0
200
C
C
kV
V
I_V
CC
R
θJL
R
θJA
R
θJL
R
θJA
T
Jmax
--
--
--
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
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4
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