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PDF NCP1605 Data sheet ( Hoja de datos )
| Número de pieza | NCP1605 | |
| Descripción | Power Factor Controller | |
| Fabricantes | ON Semiconductor | |
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NCP1605
Enhanced, High Voltage and
Efficient Standby Mode,
Power Factor Controller
The NCP1605 is a controller that exhibits near−unity power factor
while operating in fixed frequency, Discontinuous Conduction Mode
(DCM) or in Critical Conduction Mode (CRM).
Housed in a SOIC−16 package, the circuit incorporates all the
features necessary for building robust and compact PFC stages, with
a minimum of external components. In addition, it integrates the skip
cycle capability to lower the standby losses to a minimum.
General Features
• Near−Unity Power Factor
• Fixed Frequency, Discontinuous Conduction Mode Operation
• Critical Conduction Mode Achievable in Most Stressful Conditions
• Lossless High Voltage Current Source for Startup
• Soft Skipt Cycle for Low Power Standby Mode
• Switching Frequency up to 250 kHz
• Synchronization Capability
• Fast Line / Load Transient Compensation
• Valley Turn On
• High Drive Capability: −500 mA / +800 mA
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• Signal to Indicate that the PFC is Ready for Operation
(“pfcOK” Pin)
• VCC range: from 10 V to 20 V
• Follower Boost Operation
• This is a Pb−Free Device
Safety Features
• Output Under and Overvoltage Protection
• Brown−Out Detection
• Soft−Start for Smooth Startup Operation
• Overcurrent Limitation
• Zero Current Detection Protecting the PFC stage from Inrush
Currents
• Thermal Shutdown
• Latched Off Capability
Typical Applications
• PC Power Supplies
• All Off Line Appliances Requiring Power Factor Correction
http://onsemi.com
1
SOIC−16
D SUFFIX
CASE 751B
16
1
MARKING
DIAGRAM
NCP1605
AWLYWWG
A = Assembly Location
WL = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free Package
PIN CONNECTIONS
STBY 1
BO 2
Vcontrol 3
FB 4
CSin 5
CSout/ZCD 6
Ct 7
OSC/SYNC 8
(Top View)
16 HV
15 NC
14 OVP/UVP
13 STDWN
12 pfcOK/REF5V
11 VCC
10 DRV
9 GND
ORDERING INFORMATION
Device
Package
Shipping†
NCP1605DR2G SOIC−16 2500/Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2007
February, 2007 − Rev. 1
1
Publication Order Number:
NCP1605/D
1 page  
NCP1605
Typical Electrical Characteristics Table(s)
(Conditions: VCC = 16 V, VHV = 50 V, VPin2 = 2 V, VPin13 = 0 V, TJ from 0°C to +125°C, unless otherwise specified) (Note 2)
Symbol
Rating
Min Typ Max Unit
HTEMP
Thermal Shutdown Hysteresis
VCC UNDERVOLTAGE Lockout Section
VCCON
Turn on Threshold Level, VCC Raising Up
VCCOFF
Minimum Operating Voltage after Turn−on
HUVLO
Difference (VCCON − VCCOFF)
VCCSTUP
VCC Threshold below which the Startup Current Source Turns on
HLATCHOFF
Difference (VCCOFF − VCCSTUP)
VCCRST
VCC Level at which the Logic Resets
Internal STARTUP Current Source
− 15 − °C
14 15 16 V
8 9 10 V
5 6 −V
5.5 7.0 8.0 V
0.6 2.0 − V
2 4 5V
IC1_hv
High−Voltage Current Source (sunk by Pin 16), VCC = 13.5 V
5 12 20 mA
IC1_Vcc
Startup Charge Current flowing out of the VCC Pin, VCC = 13.5 V
5 12 20 mA
IC2 High−Voltage Current Source, VCC = 0 V
− 0.5 1.0 mA
Device Consumption
Icc_op1
Icc_op2
Icc_OFF
Icc_latchOFF
Power Supply Current:
Operating (@ VCC = 16 V, no load, no switching)
Operating (@ VCC = 16 V, no load, switching)
Off Mode (@ VCC = 16 V, Pin 6 grounded)
Latched−Off Mode (@ VCC = 13.5 V and VPin13 = 5 V)
− 2.5 5 mA
2.0 3.5
7 mA
310 570 780 mA
310 550 750 mA
2. The maximum transient voltage with a corresponding maximum transient current at 100 mA. The maximum transient power handling
capability must be observed as well.
3. The above specification gives the targeted values of the parameters. The final specification will be available once the complete circuit
characterization has been performed.
4. Not tested; guaranteed by characterization
5. Not tested; guaranteed by design
http://onsemi.com
5
5 Page 
NCP1605
95.9
95.8
95.7
95.6
95.5
95.4
95.3
95.2
95.1
−40 −15 10 35 60
85 110
TJ, JUNCTION TEMPERATURE (°C)
Figure 25. Ratio (VOUT Low Detect Threshold) /
VREF vs. Temperature
270
260
250
240
230
220
210
200
190
−40 −15 10 35 60
85 110
TJ, JUNCTION TEMPERATURE (°C)
Figure 26. Pin 3 Source Current when (VOUT Low
Detect Threshold) is Activated vs. Temperature
110 110
105 105
100 100
95 95
90 90
85
80
−40
−15 10 35 60
85
TJ, JUNCTION TEMPERATURE (°C)
110
Figure 27. Oscillator Charge Current vs.
Temperature
1.01
0.99
0.97
0.95
0.93
0.91
−40 −15 10 35 60
85 110
TJ, JUNCTION TEMPERATURE (°C)
Figure 29. Oscillator Swing vs. Temperature
85
80
−40
−15 10 35 60
85
TJ, JUNCTION TEMPERATURE (°C)
110
Figure 28. Oscillator Discharge Current vs.
Temperature
150
125
100
75
50
25
0
−40 −15 10 35 60
85 110
TJ, JUNCTION TEMPERATURE (°C)
Figure 30. pfcOK Pin Low Level Voltage vs.
Temperature
http://onsemi.com
11
11 Page | ||
| Páginas | Total 32 Páginas | |
| PDF Descargar | [ Datasheet NCP1605.PDF ] | |
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