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Onsemi NCP1681 | Demoboard NCP1681CCM1KWGEVB
CCM Totem pole PFC 1000 W design with Gate driver integrated GaNFETs
Overview
| Topology | Power Factor Correction |
| IC revision | 1 |
Description
This design used onsemi’s NCP1681BA Multi-Mode Totem Pole PFC controller, NCP58921 Gate driver integrated GaNFETs for Fast leg, NCP51530 650V gate driver for slow leg and NCP51561 galvanic isolated gate driver for fast leg.
Features
- Totem Pole PFC Topology Eliminates Input Diode Bridge Enabling Very High Efficiency & Compact Design
- AC Line Monitoring Circuit & AC Phase Detection
- Brownout Detection
- Digital Loop Compensation
- Novel Current Sensing Scheme Providing Inductor Current Upslope and Downslope Sensing
- PFCOK Indicator
- Skip/Standby Mode for Optimizing Light Load Performance
- Near−Unity Power Factor in All Operating Modes
Typical applications
- Totem-Pole PFC
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Safety Class | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Pitch(mm) | Packaging | Tol. C | Size | Operating Temperature | DF(%) | Ceramic Type | Fl(mm) | IR(A) | L(mH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WCAP-FTXX Film Capacitors, Across the mains, 47 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTXX Film Capacitors | Capacitance47 nF | Safety ClassX2 | Rate of Voltage Rise300 V/µs | Dissipation Factor0.1 % | Insulation Resistance30 GΩ | Pitch10 mm | PackagingBulk | Capacitance±10% | SizePitch 10 mm | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | Rated Voltage310 V (AC) | – | – | Length13 mm | Width4.5 mm | Height9.5 mm | MountBoxed THT | ||||
| WCAP-FTXX Film Capacitors, Across the mains, 1 µF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTXX Film Capacitors | Capacitance1 µF | Safety ClassX2 | Rate of Voltage Rise170 V/µs | Dissipation Factor0.1 % | Insulation Resistance10 GΩ | Pitch22.5 mm | PackagingBulk | Capacitance±10% | SizePitch 22.5 mm | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | Rated Voltage310 V (AC) | – | – | Length26 mm | Width11 mm | Height20 mm | MountBoxed THT | ||||
 | WE-CMBNC Common Mode Power Line Choke Nanocrystalline, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMBNC Common Mode Power Line Choke Nanocrystalline | – | – | – | – | – | – | – | – | SizeL | Operating Temperature -55 °C up to +125 °C | – | – | – | Rated Current7 A | Inductance7 mH | DC Resistance22 mΩ | Rated Voltage300 V (AC) | Insulation Test Voltage2100 V (AC) | MaterialNanocrystalline | Length29 mm | Width19 mm | Height28 mm | MountTHT | ||||
 | WE-CMBNC Common Mode Power Line Choke Nanocrystalline, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMBNC Common Mode Power Line Choke Nanocrystalline | – | – | – | – | – | – | – | – | SizeXL | Operating Temperature -55 °C up to +125 °C | – | – | – | Rated Current5 A | Inductance30 mH | DC Resistance46 mΩ | Rated Voltage300 V (AC) | Insulation Test Voltage2100 V (AC) | MaterialNanocrystalline | Length33 mm | Width23 mm | Height34 mm | MountTHT | ||||
 | WE-FI Leaded Toroidal Line Choke, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-FI Leaded Toroidal Line Choke | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | Rated Current6.1 A | Inductance0.15 mH | DC Resistance45 mΩ | – | – | – | Length27.5 mm | Width13.6 mm | – | MountTHT | |||
| WCAP-CSGP MLCCs 100 V(DC), –, 100 pF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 100 V(DC) | Capacitance100 pF | – | – | – | Insulation Resistance10 GΩ | – | Packaging7" Tape & Reel | Capacitance±10% | Size0603 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor2.5 % | Ceramic TypeX7R Class II | Pad Dimension0.4 mm | – | – | – | Rated Voltage100 V (AC) | – | – | Length1.6 mm | Width0.8 mm | Height0.8 mm | – | |||||
750319122 | Power Inductor, –, – | Simulation– | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Power Inductor | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |