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PDF NCP1051 Data sheet ( Hoja de datos )
| Número de pieza | NCP1051 | |
| Descripción | Monolithic High Voltage Gated Oscillator Power Switching Regulator | |
| Fabricantes | ON | |
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NCP1050, NCP1051,
NCP1052, NCP1053,
NCP1054, NCP1055
Monolithic High Voltage
Gated Oscillator Power
Switching Regulator
The NCP1050 through NCP1055 are monolithic high voltage
regulators that enable end product equipment to be compliant with low
standby power requirements. This device series combines the required
converter functions allowing a simple and economical power system
solution for office automation, consumer, and industrial products.
These devices are designed to operate directly from a rectified AC line
source. In flyback converter applications they are capable of providing
an output power that ranges from 6.0 W to 40 W with a fixed AC input
of 100 V, 115 V, or 230 V, and 3.0 W to 20 W with a variable AC input
that ranges from 85 V to 265 V.
This device series features an active startup regulator circuit that
eliminates the need for an auxiliary bias winding on the converter
transformer, fault detector and a programmable timer for converter
overload protection, unique gated oscillator configuration for extremely
fast loop response with double pulse suppression, power switch current
limiting, input undervoltage lockout with hysteresis, thermal shutdown,
and auto restart fault detection. These devices are available in
economical 8−pin dual−in−line and 4−pin SOT−223 packages.
Features
• Startup Circuit Eliminates the Need for Transformer Auxiliary Bias
Winding
• Optional Auxiliary Bias Winding Override for Lowest Standby
Power Applications
• Converter Output Overload and Open Loop Protection
• Auto Restart Fault Protection
• IC Thermal Fault Protection
• Unique, Dual Edge, Gated Oscillator Configuration for Extremely
Fast Loop Response
• Oscillator Frequency Dithering with Controlled Slew Rate Driver for
Reduced EMI
• Low Power Consumption Allowing European Blue Angel Compliance
• On−Chip 700 V Power Switch Circuit and Active Startup Circuit
• Rectified AC Line Source Operation from 85 V to 265 V
• Input Undervoltage Lockout with Hysteresis
• Oscillator Frequency Options of 44 kHz, 100 kHz, 136 kHz
• These are Pb−Free and Halide−Free Devices
Typical Applications
• AC−DC Converters
• Wall Adapters
• Portable Electronic Chargers
• Low Power Standby and Keep−Alive Supplies
www.onsemi.com
MARKING
DIAGRAMS
8
PDIP−8
NCP105XZ
8
P SUFFIX
AWL
CASE 626A
YYWWG
1
Pin: 1.
2.
VCC
1
Control Input
3, 7−8. Ground
4. No Connection
5. Power Switch Drain
SOT−223
ST SUFFIX
CASE 318E
Pin: 1.VCC
2.Control Input
1
3.Power Switch Drain
4.Ground
AYW
N5XZG
G
X = Current Limit (0, 1, 2, 3, 4, 5)
Z = Oscillator Frequency
A = 44 kHz, B = 100 kHz, C = 136 kHz
A = Assembly Location
WL, = 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 on page 22 of
this data sheet.
© Semiconductor Components Industries, LLC, 2015
April, 2015 − Rev. 14
1
Publication Order Number:
NCP1050/D
1 page  
NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055
ICC1, Current Measurement
ICC2, Current Measurement
VCC(on)
Hysteretic Regulation
VCC
VCC(off)
VCC(reset)
ICC3, Current Measurement
I(start)
ICC1
ICC
0V
6.3 mA
0 mA
ICC2
ICC3
0 mA
I(start)
47.5 mA
37.5 mA
ICONTROL, SINK
0 mA
V(pin 5)
Fault Applied
Fault Removed
Figure 4. Non−Latching Fault Condition Timing Diagram
www.onsemi.com
5
5 Page 
NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055
TYPICAL CHARACTERISTICS
50
CURRENT RISING
46
42
38
CURRENT FALLING
34
30
−50 −25
0 25 50 75 100 125
TEMPERATURE (°C)
Figure 11. Upper Window Control Input
Current Thresholds versus Temperature
150
1.39
1.38
1.37
1.36
1.35
1.34
1.33
1.32
1.31
1.30
1.29
1.28
−50 −25
ISINK = 25 mA
0 25 50 75 100 125 150
TEMPERATURE (°C)
Figure 12. Control Input Lower Window Clamp
Voltage versus Temperature
4.66
4.64
4.62
4.60
4.58
4.56
ISOURCE = 25 mA
4.54
4.52
−50 −25
0 25 50 75 100 125 150
TEMPERATURE (°C)
Figure 13. Control Input Upper Window Clamp
Voltage versus Temperature
45
40
NCP1050,1,2
35 (ID = 50 mA)
30
25
20
15
NCP1053,4,5
(ID = 100 mA)
10
5
0
−50 −25
0 25 50 75 100 125 150
TEMPERATURE (°C)
Figure 14. On Resistance versus Temperature
120
100
80
60
40
20
0
0
TJ = −40°C
TJ = 25°C
TJ = 125°C
100 200 300 400 500 600 700 800 900
APPLIED VOLTAGE (V)
Figure 15. Power Switch and Startup Circuit
Leakage Current versus Voltage
100
NCP1053,4,5
10
NCP1050,1,2
TJ = 25°C
1
0 100 200 300 400 500 600 700
APPLIED VOLTAGE (V)
Figure 16. Power Switch and Startup Circuit
Output Capacitance versus Applied Voltage
www.onsemi.com
11
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet NCP1051.PDF ] | |
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