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Overview
| Topology | Flyback Converter |
| Input voltage | 120-400 V |
| Switching frequency | 78-650 kHz |
| Output 1 | 12 V / 4 A |
| IC revision | a |
Description
The NCP1568DC48WGEVB is a 48 W, wide range DC input of 120 V to 400 V, constant voltage power supply intended for Server AUX power and other DC input applications requiring a low profile with high efficiency and high power density. The NCP1568DC48WGEVB uses an Active Clamp Flyback (ACF) topology utilizing ON Semiconductor NCP1568 ACF controller, NCP51530A half−bridge driver, NCP4306 synchronous rectified controller and secondary NTMFS6B03 synchronous MOSFET to achieve over 94% efficiency at full load.
Features
- Topology and Control Scheme
- Active Clamp Flyback Topology Aids in ZVS
- Proprietary Multi−Mode Operation to Enhance Light Load Efficiency
- Proprietary Adaptive ZVS Allows High Frequency Operation while Reducing EMI
- Inbuilt Adaptive Dead−Time for Both Main and Active Clamp FETs
- Peak Current−Mode Control with Inbuilt Slope Compensation with Options
- Flexible Control Scheme and Programmability Allow for Configuration with Either External Silicon or GaN FETs
- DCM and Light Load Operation
- Customer Programmable Optional Transition to DCM
- Integrated Frequency Foldback with Minimum Frequency
- Clamp for Highest Performance in Standby Mode
- Minimum Frequency Clamp and Quiet Skip Eliminates Audible Noise
- Standby Power < 30 mW
- Integrated HV and Startup Circuits
- 700 V Startup Circuit
- AC Line Brownout Detect
- Drivers
- 0.85 A/1.5 A Source/Sink for Low Side
- 65 mA/150 mA Active Clamp Driver Output
- Oscillator
- Programmable Frequency from 100 kHz to 1 MHz
- Internal Soft−Start Timer with 4 Options
- Protection
- Dedicated FLT Pin Compatible witha Thermistor
- Adjustable Over Power Protection (OPP)
- Option for Auto−Recovery and Latchedin Various Faults
- Internal Thermal Shutdown
Typical applications
- Notebook Adapters, High Density Chargers
- USB Power Delivery, Industrial Power Supplies
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC(mΩ) | fres(MHz) | Material | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 50 V(DC), 100 pF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance100 pF | Capacitance±10% | Rated Voltage50 V (DC) | Size0402 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor2.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1 mm | Width0.5 mm | Height0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), 1 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance1 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0402 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor2.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1 mm | Width0.5 mm | Height0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), 100 nF, ±20% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance100 nF | Capacitance±20% | Rated Voltage25 V (DC) | Size0402 | Operating Temperature -55 °C up to +85 °C | Dissipation Factor10 % | Insulation Resistance5 GΩ | Ceramic TypeX5R Class II | Length1 mm | Width0.5 mm | Height0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), 100 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance100 nF | Capacitance±10% | Rated Voltage25 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor3.5 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), 1 µF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance1 µF | Capacitance±10% | Rated Voltage25 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor10 % | Insulation Resistance0.5 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | |||||
 | WE-HCI SMT Flat Wire High Current Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | – | – | – | Size7050 | Operating Temperature -40 °C up to +150 °C | – | – | – | Length7 mm | Width6.9 mm | Height4.8 mm | – | – | Inductance2 µH | Performance Rated Current13.8 A | Saturation Current @ 10%4.5 A | Saturation Current @ 30%9 A | DC Resistance5.85 mΩ | Self Resonant Frequency68 MHz | MaterialSuperflux |