IC manufacturers Onsemi

IC manufacturers (103)

Onsemi NCP1681 | Demoboard Totem-Pole PFC

NCP1681

Overview

TopologyPower Factor Correction
Input voltage95-245 V
Output 1375 V / 3 A
IC revision1

Description

1kW Totem-Pole PFC for Telecom Applications - Stand-by card and MainboardThe NCP1681 is a PFC controller IC designed to drive the bridgeless totem-pole PFC topology. The bridgeless totem-pole PFC is a power factor correction architecture that consists of a fast switching leg driven at the PWM switching frequency and a second leg that operates at the AC line frequency. This topology eliminates the diode bridge present at the input of a conventional PFC circuit, allowing significant improvement in the power stage efficiency. The controller can be configured to operate in Continuous Conduction Mode (CCM) or Multi-Mode (CrM-CCM) operation.

Features

Totem Pole PFC Topology Eliminates Input Diode BridgeContinuous Conduction Mode (CCM) Operation At High Power LevelOptional Multi-mode Operation With CCM at High Power & CrM at Medium Power LevelFrequency Foldback in DCM With 25 kHz Minimum FrequencySkip Mode in Very Light Load ConditionNovel Current Sense SchemeDigital Voltage Loop CompensationAC Line Monitoring Circuit & AC Phase DetectionNear Unity Power Factor in All Operating ModesPFC OK Indicator

Typical applications

  • PFC, Telecom, Server

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesPins
(pcs)
ApplicationPCB/Cable/PanelModularityWire SectionCTol. COperating TemperatureSafety ClassVIMP
(V (DC))
DF
(%)
RISOCeramic TypeFl
(mm)
PackagingdV/dt
(V/µs)
DF @ 1 kHz
(%)
Pitch
(mm)
ISAT
(A)
fres
(MHz)
Endurance
(h)
IRIPPLE
(mA)
ILeak
(µA)
Ø D
(mm)
RESR
(mΩ)
Ø Cable max.
(mm)
Ø OD
(mm)
Ø ID
(mm)
Z @ 25 MHz
1 turn
(Ω)
Z @ 100 MHz
1 turn
(Ω)
Z @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(mΩ)
TypeIR
(A)
L
(mH)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
MountVRMS
(V)
VDC
(V)
VBR
(V)
IPeak
(A)
Wmax
(J)
PDiss
(W)
VDE ApprovalVIN
(V)
VOut1
(V)
IOut1
(A)
VOut2
(V)
IOut2
(A)
Vaux
(V)
fswitchnIR
(A)
RDC 1
(mΩ)
RDC 2
(mΩ)
RDC 3
(mΩ)
RDC 4
(mΩ)
SizeLS
(µH)
Samples
691210910002SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-TBL Series 2109 - 2.54 mm Horiz. Entry 2 Rising Cage Clamp PCB No 30 to 18 (AWG) 0.2 to 0.75 (mm²) -40 °C up to +105 °C Box 2.54 Horizontal 6 5.48 THT
691236510002SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-TBL Series 2365 - 5.08 mm Horiz. Entry w. Rising Cage Clamp 2 Rising Cage Clamp PCB Yes 12 to 30 (AWG) 3.31 to 0.0509 (mm²) -30 °C up to +120 °C Box 5.08 Horizontal 20 10.16 THT
691236510003SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-TBL Series 2365 - 5.08 mm Horiz. Entry w. Rising Cage Clamp 3 Rising Cage Clamp PCB Yes 12 to 30 (AWG) 3.31 to 0.0509 (mm²) -30 °C up to +120 °C Box 5.08 Horizontal 20 15.24 THT
7448251201SPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

11 files Active i| Production is active. Expected lifetime: >10 years.WE-CMB Common Mode Power Line Choke 4 -40 °C up to +125 °C 9 12 1 250 1500 MnZn 31 22 35 THT 40042670 12 XL
742792011SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WE-CBF SMT EMI Suppression Ferrite Bead -55 °C up to +125 °C 0.5 10 20 1000 MHz 3000 25 High Current 2 2 1.2 0.9 SMT 3 0805
74270033SPEC
2 files Active i| Production is active. Expected lifetime: >10 years.WE-AFB -25 °C up to +125 °C 4.4 9.5 4.75 47 68 3 W 800 9.5
820443211ESPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WE-VD Disk Varistor 230 VAC -40 °C up to +105 °C 16.5 16.5 4.8 20.5 THT 320 418 510 6000 190 0.6 Yes 14 mm
890334025027CSSPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-FTXX Film Capacitors Across the mains220 nF ±10% -40 °C up to +105 °C X230 GΩ Carton 180 0.1 15 310 18 6 11.5 Boxed THT Pitch 15 mm
890334026034CSSPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-FTXX Film Capacitors Across the mains2.2 µF ±10% -40 °C up to +105 °C X24.55 GΩ Carton 170 0.1 22.5 310 26 15 25 Boxed THT Pitch 22.5 mm
890334027025CSSPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-FTXX Film Capacitors Across the mains3.3 µF ±10% -40 °C up to +105 °C X23.03 GΩ Carton 130 0.1 27.5 310 31 15.5 29 Boxed THT Pitch 27.5 mm
7447076SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-FI Leaded Toroidal Line Choke -40 °C up to +105 °C 45 6.1 0.15 27.5 13.6 THT
744150SPEC
10 files Active i| Production is active. Expected lifetime: >10 years.WE-SI Leaded Toroidal Storage Choke -40 °C up to +105 °C 1.2 4 25 28.5 15 10.3 0.026 28.5 14.5 12 THT
760871135SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WE-UOST Universal Offline Standard Transformers -40 °C up to +125 °C 0.8 1.25 4200 25.81 16.6 13.5 SMT 85 - 265 V (AC) 12 0.55 12 0.55 14 60-150 136 : 13 : 13 : 15 2920 92 92 400 EE16/8/5 53
860021375011SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATG5 Aluminum Electrolytic Capacitors10 µF ±20% 15 Ammopack 5 2000 104 120 10 400 14
860130473003SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATET Aluminum Electrolytic Capacitors47 µF ±20% 13 Ammopack 2.5 1000 110 11.75 6.3 25 11
860080780026SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATLI Aluminum Electrolytic Capacitors680 µF ±20% 8 Ammopack 7.5 5000 2600 428.4 16 63 31.5
860040774002SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATUL Aluminum Electrolytic Capacitors47 µF ±20% 9 Ammopack 3.5 7000 360 29.61 8 63 11.5
870025574005SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-PTG5 Aluminum Polymer Capacitors100 µF ±20% 8 Ammopack 3.5 2000 4500 500 8 25 8 Radial THT
870025575009SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-PTG5 Aluminum Polymer Capacitors330 µF ±20% 8 Ammopack 5 2000 4900 1650 10 25 12.5 Radial THT
861141483007SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-AI3H Aluminum Electrolytic Capacitors220 µF ±20% -25 °C up to +105 °C 20 Tray 10 3000 1000 943.93 22 640 450 51 22.0 x 50.0
8853622110151SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSSA Interference Suppression2.2 nF ±10% -55 °C up to +125 °C X2 2500 2.510 GΩ X7R Class II 0.5 7" Tape & Reel 250 4.5 3.2 2.5 SMT-Chip 1812
760800102SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-TORPFC Toroidal PFC Chokes -40 °C up to +155 °C 10.5 60 20800 55 9.8 0.51 1000 54.5 700 - 85 T43
Order Code Data­sheet Simu­lation
691210910002SPEC
691236510002SPEC
691236510003SPEC
7448251201SPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

742792011SPEC
74270033SPEC
820443211ESPEC
890334025027CSSPEC
890334026034CSSPEC
890334027025CSSPEC
7447076SPEC
744150SPEC
760871135SPEC
860021375011SPEC
860130473003SPEC
860080780026SPEC
860040774002SPEC
870025574005SPEC
870025575009SPEC
861141483007SPEC
8853622110151SPEC
760800102SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesPins
(pcs)
ApplicationPCB/Cable/PanelModularityWire SectionCTol. COperating TemperatureSafety ClassVIMP
(V (DC))
DF
(%)
RISOCeramic TypeFl
(mm)
PackagingdV/dt
(V/µs)
DF @ 1 kHz
(%)
Pitch
(mm)
ISAT
(A)
fres
(MHz)
Endurance
(h)
IRIPPLE
(mA)
ILeak
(µA)
Ø D
(mm)
RESR
(mΩ)
Ø Cable max.
(mm)
Ø OD
(mm)
Ø ID
(mm)
Z @ 25 MHz
1 turn
(Ω)
Z @ 100 MHz
1 turn
(Ω)
Z @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(mΩ)
TypeIR
(A)
L
(mH)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
MountVRMS
(V)
VDC
(V)
VBR
(V)
IPeak
(A)
Wmax
(J)
PDiss
(W)
VDE ApprovalVIN
(V)
VOut1
(V)
IOut1
(A)
VOut2
(V)
IOut2
(A)
Vaux
(V)
fswitchnIR
(A)
RDC 1
(mΩ)
RDC 2
(mΩ)
RDC 3
(mΩ)
RDC 4
(mΩ)
SizeLS
(µH)
Samples