|
|
Número de pieza | NCP1380 | |
Descripción | Quasi-Resonant Current Mode Controller | |
Fabricantes | ON Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de NCP1380 (archivo pdf) en la parte inferior de esta página. Total 26 Páginas | ||
No Preview Available ! NCP1380
Quasi-Resonant
Current-Mode Controller for
High-Power Universal
Off-Line Supplies
The NCP1380 hosts a high−performance circuitry aimed to
powering quasi−resonant converters. Capitalizing on a proprietary
valley−lockout system, the controller shifts gears and reduces the
switching frequency as the power loading becomes lighter. This
results in a stable operation despite switching events always occurring
in the drain−source valley. This system works down to the 4th valley
and toggles to a variable frequency mode beyond, ensuring an
excellent standby power performance.
To improve the safety in overload situations, the controller includes
an Over Power Protection (OPP) circuit which clamps the delivered
power at high−line. Safety−wise, a fixed internal timer relies on the
feedback voltage to detect a fault. Once the timer elapses, the
controller stops and stays latched for option A and C or enters
auto−recovery mode for option B and D.
Particularly well suited for adapter applications, the controller
features a pin to implement either a combined overvoltage /
overtemperature protection (Version A and B) or a combined
brown−out/overvoltage protection (Version C and D).
Features
• Quasi−Resonant Peak Current−Mode Control Operation
• Valley Switching Operation with Valley−Lockout for Noise−Immune
Operation
• Frequency Foldback at Light Load to Improve the Light Load
Efficiency
www.Dat•aSAhedejtu4sUt.acbolme Over Power Protection
• Auto−Recovery or Latched Internal Output Short−Circuit Protection
• Fixed Internal 80 ms Timer for Short−Circuit Protection
• Combined Overvoltage and Overtemperature Protection (A and B
Versions)
• Combined Overvoltage Protection and Brown−Out (C and D
Versions)
• +500 mA / −800 mA Peak Current Source/Sink Capability
• Internal Temperature Shutdown
• Direct Optocoupler Connection
• Extended VCC Range Operation Up to 28 V
• Extremely Low No−Load Standby Power
• SO−8 Package
• These Devices are Pb−Free and are RoHS Compliant
Typical Applications
• High Power ac−dc Converters for TVs, Set−Top Boxes etc.
• Offline Adapters for Notebooks
http://onsemi.com
QUASI−RESONANT PWM
CONTROLLER FOR HIGH
POWER AC−DC WALL
ADAPTERS
8
1
SOIC−8
D SUFFIX
CASE 751
MARKING
DIAGRAMS
8
1380X
ALYWX
G
1
1380X = Specific Device Code
X = Device Option (A, B, C, or D)
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb−Free Package
PIN CONNECTIONS
ZCD 1
FB 2
CS 3
GND 4
8 CT
7 FAULT
6 VCC
5 DRV
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 25 of this data sheet.
© Semiconductor Components Industries, LLC, 2009
December, 2009 − Rev. 1
1
Publication Order Number:
NCP1380/D
1 page NCP1380
VDD
R pul l up
FB
VDD
LOGIC BLOCK
VDD
BO reset
latch V CC management
fa ul t
gr a nd
reset
VCCstop
aux
VCC
VDD
clamp
ICt
Ct
Ct se tpoint
+
−
DRV
gr a nd
reset
R
DRV
ga te
ZCD
Ct
discharge
10 V
ESD
Vth
+
−
de ma g
La ux
DRV
3 ms blanking
SS end
40 ms
Time Out
/ 4 The 40 ms Time Out is active
only during s oft−s ta r t
SS end
5 ms
Time Out
Ipeak(VCO) = 17.5% VILIMIT
CS
LEB 1
www.DataSheReste4nUse.com
OPP
SQ
Q
R
P W Mreset
IpFlag
VILIMIT
LEB 2
LEB 2 is shorter than LEB 1
Soft-start
+
−
Soft−s ta r t e nd ? the n 1
else 0
SS end
+
CsS top
−
VCS ( st op)
Q
QS
C:
l a tc he d
CsS top
GN D
Up
TIMER
Down
Res et
I pFl a g
P W Mreset
gr a nd
reset
nois e de la y
noi s e de l a y
BO r es et
+
−
VOVP
VCC HV
VDD
IBO
OVP/BO
VBO
+
−
Rclamp
Vclamp
Figure 4. Internal Circuit Architecture for Versions C and D
http://onsemi.com
5
5 Page NCP1380
85
75
65
55
45
35
−40 −20 0
20 40 60 80 100 120
TJ, JUNCTION TEMPERATURE (°C)
Figure 17. VZCD(th) vs. Junction Temperature
55
50
45
40
35
30
25
20
15
−40 −20 0
20 40 60 80 100 120
TJ, JUNCTION TEMPERATURE (°C)
Figure 18. VZCD(hys) vs. Junction Temperature
3.50
3.40
3.30
3.20
3.10
3.0
2.90
−40 −20 0
20 40 60 80 100 120
TJ, JUNCTION TEMPERATURE (°C)
Figure 19. TBLANK vs. Junction Temperature
www.DataSheet4U.com
6.6
6.4
6.2
6.0
5.8
5.6
5.4
5.2
5.0
−40
−20 0 20 40 60 80 100 120
TJ, JUNCTION TEMPERATURE (°C)
Figure 21. Tout vs. Junction Temperature
49.0
47.0
45.0
43.0
41.0
39.0
37.0
35.0
−40 −20 0
20 40 60 80 100 120
TJ, JUNCTION TEMPERATURE (°C)
Figure 20. ToutSS vs. Junction Temperature
810
805
800
795
790
785
780
−40 −20 0
20 40 60 80 100 120
TJ, JUNCTION TEMPERATURE (°C)
Figure 22. VOTP vs. Junction Temperature
http://onsemi.com
11
11 Page |
Páginas | Total 26 Páginas | |
PDF Descargar | [ Datasheet NCP1380.PDF ] |
Número de pieza | Descripción | Fabricantes |
NCP1380 | Quasi-Resonant Current Mode Controller | ON Semiconductor |
NCP1381 | Low Standby High Performance PWM Controller | ON Semiconductor |
Número de pieza | Descripción | Fabricantes |
SLA6805M | High Voltage 3 phase Motor Driver IC. |
Sanken |
SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |