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NCP1129 PDF даташит

Спецификация NCP1129 изготовлена ​​​​«ON Semiconductor» и имеет функцию, называемую «High-Voltage Switcher».

Детали детали

Номер произв NCP1129
Описание High-Voltage Switcher
Производители ON Semiconductor
логотип ON Semiconductor логотип 

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NCP1129 Даташит, Описание, Даташиты
NCP1124, NCP1126,
NCP1129
High Voltage Switcher for
Offline Power Supplies
The NCP112x products integrates a fixed−frequency peak current
mode controller with a low on−resistance, 650 V MOSFET. Available
in a PDIP−7 package, the NCP112x offers a high level of integration,
including soft−start, frequency−jittering, short−circuit protection,
thermal shutdown protection, frequency foldback mode and
skip−cycle to reduce power consumption in light load condition, peak
current mode control with adjustable internal ramp compensation and
adjustable peak current set point.
During nominal load operation, the part switches at one of the
available frequencies (65 or 100 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 no load condition.
Protection features include: a timer to detect an overload or a
short−circuit event with auto−recovery or latch protection, and a
built−in VCC overvoltage protection.
The switcher also provides a jittered 65 kHz or 100 kHz switching
frequency to improve the EMI.
Features
Built−in 650 V, 1 A MOSFET with RDS(on) of 8.6 W for NCP1124
Built−in 650 V, 1.8 A MOSFET with RDS(on) of 5.4 W for NCP1126
Built−in 650 V, 5.5 A MOSFET with RDS(on) of 2.1 W for NCP1129
Fixed−Frequency 65 or 100 kHz Current Mode Control with
Adjustable Internal Ramp Compensation
Adjustable Current Limit with External Resistor
Frequency Foldback Down to 26 kHz and Skip−Cycle for Light Load
Efficiency
Frequency Jittering for EMI Improvement
Less than 100 mW Standby Power @ High Line
EPS 2.0 Compliant
7−Pin Package Provides Creepage Distance
These are Pb−Free Devices
www.onsemi.com
PDIP−7
P SUFFIX
CASE 626B
MARKING DIAGRAMS
112xyPzzz
AWL
YYWWG
1
x = Specific Device Code
4 = NCP1124
6 = NCP1126
9 = NCP1129
y = A or B
A = Latch
B = Auto−recovery
zzz = Frequency
65 = 65 kHz
100 = 100 kHz
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
ORDERING INFORMATION
See detailed ordering and shipping information on page 17 of
this data sheet.
Table 1. OUTPUT POWER TABLE (Note 1)
230 Vac + 15% (Note 4)
85 − 265 Vac
Product
Adapter (Note 2)
Peak or Open Frame (Note 3)
Adapter (Note 2)
Peak or Open Frame (Note 3)
NCP1124
12 W
27 W
6W
14 W
NCP1126
15 W
32 W
10 W
17 W
NCP1129
28 W
43 W
20 W
26.5 W
1. 12 V output voltage with 135 V reflected output voltage
2. Typical continuous power in a non-ventilated enclosed adaptor measured at 50°C ambient temperature.
3. Maximum practical continuous power in an open-frame design at 50°C ambient temperature
4. 230 VAC or 115 VAC with voltage doubler.
© Semiconductor Components Industries, LLC, 2015
March, 2015 − Rev. 3
1
Publication Order Number:
NCP1126/D









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NCP1129 Даташит, Описание, Даташиты
NCP1124, NCP1126, NCP1129
Figure 1. Typical Application
Table 2. PIN FUNCTION DESCRIPTION
Pin No. Pin Name
Pin Description
1
VCC
This pin is connected to an external auxiliary voltage and supplies the controller. When above a certain
level, the part fully latches off.
2 FB Feedback input. Hooking an optocoupler collector to this pin will allow regulation.
3 CS This pin monitors the primary peak current but also offers a means to introduce ramp compensation.
4
Source
Source of the internal MOSFET. This pin is typically connected to the source of a grounded sense resistor.
5
Drain
The drain of the internal MOSFET. These pins connect to the transformer terminal and can withstand up to
650 V.
6 Drain
7 − Removed for creepage distance.
8
GND
Ground reference.
Table 3. OPTIONS
Switcher
NCP1124AP65G
NCP1124BP65G
NCP1124AP100G
NCP1124BP100G
NCP1126AP65G
NCP1126BP65G
NCP1126AP100G
NCP1126BP100G
NCP1129AP65G
NCP1129BP65G
NCP1129AP100G
NCP1129BP100G
Package
PDIP−7
PDIP−7
PDIP−7
PDIP−7
PDIP−7
PDIP−7
PDIP−7
PDIP−7
PDIP−7
PDIP−7
PDIP−7
PDIP−7
Frequency
65 kHz
65 kHz
100 kHz
100 kHz
65 kHz
65 kHz
100 kHz
100 kHz
65 kHz
65 kHz
100 kHz
100 kHz
Short−Circuit Protection
Latch
Auto−Recovery
Latch
Auto−Recovery
Latch
Auto−Recovery
Latch
Auto−Recovery
Latch
Auto−Recovery
Latch
Auto−Recovery
www.onsemi.com
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NCP1129 Даташит, Описание, Даташиты
NCP1124, NCP1126, NCP1129
VCC and logic
VDD management
double hiccup
Power
On Reset
VDD
Ipflag
SQ
Q
R
Power
on reset
UVLO
VOVP
+
RLIM
4 kW
Clamp
Vcc
Drain
+
Vskip
VDD
+
+
+
Frequency
Modulation
65/100 kHz
clock
Frequency
foldback
Vfold
−+
Slope
Compensation
SQ
Q
R
RFB
FB /4
CS
Rramp
The soft start is activated
− startup process
− auto recovery
250 mV Peak
Current Freeze
4 ms 5 s
VILIM
Ipflag
LEB
Figure 2. Functional Block Diagram
Source
GND
www.onsemi.com
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