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PDF NCP1075 Data sheet ( Hoja de datos )
| Número de pieza | NCP1075 | |
| Descripción | High-Voltage Switcher | |
| Fabricantes | ON Semiconductor | |
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NCP1070, NCP1071,
NCP1072, NCP1075,
NCP1076, NCP1077
High-Voltage Switcher for
Low Power Offline SMPS
The NCP107x products integrate a fixed frequency current mode
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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
MARKING
DIAGRAMS
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
SOT−223
ST SUFFIX
CASE 318E
AYW
107xyG
G
1
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
PDIP−7
P SUFFIX
CASE 626A
P107xfyyy
AWL
YYWWG
AC input line voltage detection.
For improved standby performance, the connection of an auxiliary
x = Current Limit (0, 1, 2, 5, 6 or 7)
winding stops the DSS operation and helps to reduce input power
consumption below 50 mW at high line.
y = Oscillator Frequency
= A (65 kHz), B (100 kHz), C (130 kHz)
yyy = 065, 100, 130
Features
• Built−in 700 V MOSFET with RDS(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,
f = OFF phase in fault mode
= P (420 ms), B (210 ms)
A = Assembly Location
WL = Wafer Lot
Y, YY = Year
W, WW = Work Week
G or G = Pb−Free Package
NCP1075 with 450 mA, NCP1076 with 650 mA and NCP1077 with
800 mA
ORDERING INFORMATION
• Fixed Ramp Compensation
• Skip−Cycle Operation at Low Peak Currents Only: No Acoustic
See detailed ordering and shipping information on page 28 of
this data sheet.
Noise!
• Dynamic Self−Supply: No Need for an Auxiliary Winding
• Internal 1 ms Soft−Start
• Frequency Foldback to Improve Efficiency at Light
• Auto−Recovery Output Short Circuit Protection with
Timer−Based Detection
Load
• Internal Temperature Shutdown
• Auto−Recovery Overvoltage Protection with Auxiliary
• These are Pb−Free Devices
Winding Operation
• Frequency Jittering for Better EMI Signature, Including
Frequency Foldback Mode
• No Load Input Consumption < 50 mW
Typical Applications
• Auxiliary / Standby Isolated Power Supplies White
Goods / Smart Meter / E−Meter
© Semiconductor Components Industries, LLC, 2016
April, 2016 − Rev. 7
1
Publication Order Number:
NCP1070/D
1 page  
NCP1070, NCP1071, NCP1072, NCP1075, NCP1076, NCP1077
ELECTRICAL CHARACTERISTICS
(For all NCP107X products except NCP1072P100BG: For typical values TJ = 25°C, for min/max values TJ = −40°C to +125°C, VCC = 8 V
unless otherwise noted)
(For NCP1072P100BG: For typical values TJ = 25°C, for min/max values TJ = −55°C (Note 7) to +125°C, VCC = 8 V unless otherwise noted)
Symbol
Rating
Pin Min Typ Max Unit
SUPPLY SECTION AND VCC MANAGEMENT
VCC(on)
VCC increasing level at which the switcher starts operation
NCP1070/71/72/75
NCP1076/77
V
1 7.8 8.2 8.6
1 7.7 8.1 8.5
VCC(min)
VCC(off)
VCC(reset)
VCC(clamp)
VCC decreasing level at which the HV current source restarts
VCC decreasing level at which the switcher stops operation (UVLO)
VCC voltage at which the internal latch is reset (guaranteed by design)
Offset voltage above VCC(on) at which the internal clamp activates
NCP1070/71
NCP1072/75
NCP1076/77
1 6.5 6.8 7.2 V
1 6.1 6.3 6.6 V
14V
mV
1 110 170 300
1 130 190 300
1 130 190 300
ICC1 Internal IC consumption, Mosfet switching
NCP1070/71/72/75
NCP1076/77
mA
1 − 0.7 1.0
1 − 1.0 1.3
ICCskip Internal IC consumption, FB is 0 V (No switching on MOSFET)
POWER SWITCH CIRCUIT
1
360 mA
RDS(on)
Power Switch Circuit on−state resistance (Id = 50 mA)
NCP1070/71
TJ = 25°C
TJ = 125°C
NCP1072/75
TJ = 25°C
TJ = 125°C
NCP1076/77
TJ = 25°C
TJ = 125°C
BVDSS
Power Switch Circuit & Startup breakdown voltage
(ID(off) = 120 mA, TJ = 25°C)
IDSS(off) Power Switch & Startup breakdown voltage off−state leakage current
TJ = 125°C (Vds = 700 V)
Switching characteristics (RL=50 W, VDS set for Idrain = 0.7 x Ilim)
ton Turn−on time (90% − 10%)
toff Turn−off time (10% − 90%)
INTERNAL START−UP CURRENT SOURCE
5W
− 22 32
− 38 55
− 11 16
− 19 24
− 4.7 6.9
− 8.7 10.75
5 700
V
mA
5 85
ns
5 20
5 10
Istart1
High−voltage current source, V = VCC(on) − 200 mV
NCP1070/71/76/77
NCP1072/75
mA
5 5.2 9.2 12.2
5 5 9 12
Istart2 High−voltage current source, VCC = 0 V
VCCTH VCC Transient level for Istart1 to Istart2 toggling point
CURRENT COMPARATOR
5 0.5 mA
1 − 2.2 − V
IIPK Maximum internal current setpoint at 50% duty cycle
FB pin open, Tj = 25°C
NCP1070
NCP1071
NCP1072
NCP1075
NCP1076
NCP1077
mA
− 250 −
− 350 −
− 250 −
− 450 −
− 650 −
− 800 −
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
4. The final switch current is: IIPK(0) / (Vin/LP + Sa) x Vin/LP + Vin/LP x tprop, with Sa the built−in slope compensation, Vin the input voltage, LP
the primary inductor in a flyback, and tprop the propagation delay.
5. NCP1072 130 kHz on demand only.
6. Oscillator frequency is measured with disabled jittering.
7. For coldest temperature, QA sampling at −40°C in production and −55°C specification is Guaranteed by Characterization.
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5
5 Page 
NCP1070, NCP1071, NCP1072, NCP1075, NCP1076, NCP1077
TYPICAL CHARACTERISTICS
29
28
27
26
25
24
23
22
21
−50
−25 0 25 50 75 100
TEMPERATURE (°C)
Figure 17. Fmin vs. Temperature
125
510
490
470
450
430
410
390
370
350
−50
−25 0
25 50 75 100
TEMPERATURE (°C)
Figure 19. trecovery vs. Temperature
125
65
60
55
50
45
40
−50 −25
0 25 50 75
TEMPERATURE (°C)
100 125
Figure 18. tSCP vs. Temperature
10
9.5
9.0
8.5
8.0
7.5
7.0
−50
−25 0 25 50 75 100
TEMPERATURE (°C)
Figure 20. IOVP vs. Temperature
125
110
105
100
95
90
85
80
−50 −25
0 25 50 75 100 125
TEMPERATURE (°C)
Figure 21. VHV(EN) vs. Temperature
6
NCP1076/77
5
4
3
NCP1072/75
2
1
NCP1070/71
0
−50 −25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
Figure 22. Drain Current Peak during Transformer
Saturation vs. Junction Temperature
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11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet NCP1075.PDF ] | |
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