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PDF NCP1652 Data sheet ( Hoja de datos )
| Número de pieza | NCP1652 | |
| Descripción | High-Efficiency Single Stage Power Factor Correction | |
| Fabricantes | ON Semiconductor | |
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NCP1652, NCP1652A
High-Efficiency Single
Stage Power Factor
Correction and Step-Down
Controller
The NCP1652 is a highly integrated controller for implementing
power factor correction (PFC) and isolated step down ac−dc power
conversion in a single stage, resulting in a lower cost and reduced part
count solution. This controller is ideal for notebook adapters, battery
chargers and other off−line applications with power requirements
between 75 W and 150 W. The single stage is based on the flyback
converter and it is designed to operate in continuous conduction
(CCM) or discontinuous conduction (DCM) modes.
The NCP1652 increases the system efficiency by incorporating a
secondary driver with adjustable nonoverlap delay for controlling a
synchronous rectifier switch in the secondary side, an active clamp
switch in the primary or both. In addition, the controller features a
proprietary Soft−Skip™ to reduce acoustic noise at light loads. Other
features found in the NCP1652 include a high voltage startup circuit,
voltage feedforward, brown out detector, internal overload timer, latch
input and a high accuracy multiplier.
Features
• Dual Control Outputs with Adjustable Non Overlap Delay for
Driving a Synchronous Rectifier Switch, an Active Clamp Switch or
Both
• Voltage Feedforward Improves Loop Response
• Frequency Jittering Reduces EMI Signature
• Proprietary Soft−Skip™ at Light Loads Reduces Acoustic Noise
• Brown Out Detector
• Internal 150 ms Fault Timer
• Independent Latch−Off Input Facilitates Implementation of
Overvoltage and Overtemperature Fault Detectors
• Single Stage PFC and Isolated Step Down Converter
• Continuous or Discontinuous Conduction Mode Operation
• Average Current Mode Control (ACMC), Fixed Frequency Operation
• High Accuracy Multiplier Reduces Input Line Harmonics
• Adjustable Operating Frequency from 20 kHz to 250 kHz
• These are Pb−Free Devices
Typical Applications
• Notebook Adapter
• High Current Battery Chargers
• Front Ends for Distributed Power Systems
• High Power Solid State Lighting
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SO−20 WB
DW SUFFIX
CASE 751D
MARKING
DIAGRAMS
20
NCP1652
AWLYYWWG
1
SOIC−16
D SUFFIX
CASE 751B
NCP1652G
AWLYWW
NCP1652AG
AWLYWW
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 32 of this data sheet.
© Semiconductor Components Industries, LLC, 2010
April, 2010 − Rev. 3
1
Publication Order Number:
NCP1652/D
1 page  
NCP1652, NCP1652A
MAXIMUM RATINGS (Notes 1 and 2)
Rating
Symbol
Value
Unit
Start_up Input Voltage
Start_up Input Current
Power Supply Input Voltage
Power Supply Input Current
Latch Input Voltage
Latch Input Current
OUTA Pin Voltage
OUTA Pin Current
OUTB Pin Voltage
OUTB Pin Current
All Other Pins Voltage
All Other Pins Current
VHV
IHV
VCC
ICC
VILLaattcchh
VoutA
IoutA
VoutB
IoutB
−0.3 to 500
$100
−0.3 to 20
$100
−0.3 to 10
$100
−0.3 to 20
$1.0
−0.3 to 20
$600
−0.3 to 6.5
$100
V
mA
V
mA
V
mA
V
A
V
mA
V
mA
Thermal Resistance, Junction−to−Air
0.1 in” Copper
0.5 in” Copper
qJA
130
110
°C/W
Thermal Resistance, Junction−to−Lead
RΘJL
50
°C/W
Maximum Power Dissipation @ TA = 25°C
PMAX
0.77
W
Operating Temperature Range
TJ −40 to 125
°C
Storage Temperature Range
TSTG
−55 to 150
°C
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.
1. This device series contains ESD protection and exceeds the following tests:
16 pin package:
Pin 1−15: Human Body Model 2000 V per JEDEC standard JESD22, Method A114.
Machine Model 200 V per JEDEC standard JESD22, Method A115.
Pin 16 is the high voltage startup of the device and is rated to the maximum rating of the part, 500 V.
20 pin package:
Pin 1−19: Human Body Model 2000 V per JEDEC standard JESD22, Method A114.
Machine Model 200 V per JEDEC standard JESD22, Method A115.
Pin 20 is the high voltage startup of the device and it is rated to the maximum
rating of the part, or 500 V.
2. This device contains Latchup protection and exceeds ±100 mA per JEDEC Standard JESD78.
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5
5 Page 
NCP1652, NCP1652A
90 90
85 85
80 80
75 75
70 70
65 65
60 60
55 55
50
−50 −25
0
25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
Figure 10. Error Amplifier Source Current vs.
Junction Temperature
60.0
50
−50 −25
0
25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
Figure 11. Error Amplifier Sink Current vs.
Junction Temperature
57.5
55.0
52.5
50.0
47.5
45.0
42.5
40.−050
−25 0 25 50 75 100 125
TJ, JUNCTION TEMPERATURE (°C)
Figure 12. Current Amplifier Input Bias
Current vs. Junction Temperature
150
770
760
750
740
730
720
710
700
−50
−25 0 25 50 75 100 125
TJ, JUNCTION TEMPERATURE (°C)
Figure 13. Current Limit Threshold vs.
Junction Temperature
150
6.0
5.8
5.6
5.4
5.2
5.0
−50
−25 0 25 50 75 100 125
TJ, JUNCTION TEMPERATURE (°C)
Figure 14. PWM Output Voltage Gain vs.
Junction Temperature
150
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11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet NCP1652.PDF ] | |
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