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Overview
| Topology | Flyback Converter |
| Input voltage | 90-265 V |
| Switching frequency | 50-500 kHz |
| Output 1 | 12 V / 20 A |
| IC revision | 6 |
Description
The NCP1397 is a high performance controller that can be utilized in half bridge resonant topologies such as series resonant, parallel resonant and LLC resonant converters. It integrates 600 V gate drivers, simplifying layout and reducing external component count. With its unique architecture, including a 500 kHz Voltage Controlled Oscillator whose control mode permits flexibility when an ORing function is required, the NCP1397 delivers everything needed to build a reliable and rugged resonant mode power supply. The NCP1397 provides a suite of protection features with configurable settings to optimize any application. These include: auto-recovery or fault latch-off, brown-out, open optocoupler, soft-start and short-circuit protection. Deadtime is also adjustable to overcome shoot through current.
Features
- High−Frequency Operation from 50 kHz up to 500 kHz
- 600 V High−Voltage Floating Driver
- Adjustable Minimum Switching Frequency with ±3% Accuracy
- Adjustable Deadtime from 100 ns to 2 s.
- Startup Sequence Via an Externally Adjustable Soft−Start
- Brown−Out Protection for a Simpler PFC Association
- Latched Input for Severe Fault Conditions, e.g. Over Temperatureor OVP
- Timer−Based Input with Auto−Recovery Operation for DelayedEvent Reaction
- Latched Overcurrent Protection
- Disable Input for Immediate Event Reaction or Simple ON/OFFControl
- VCC Operation up to 20 V
- Low Startup Current of 300 A
- 1 A/0.5 A Peak Current Sink/Source Drive Capability
- Common Collector Optocoupler Connection for Easier ORing
- Optional Common Emitter Optocoupler Connection
- Internal Temperature Shutdown
- NCV Prefix for Automotive and Other Applications RequiringUnique Site and Control Change Requirements; AEC−Q100Qualified and PPAP Capable
- These Devices are Pb−Free, Halogen Free/BFR Free and are RoHSCompliant
Typical applications
- Computing Power Supplies
- Offline Battery Chargers
- Industrial and Medical Power Sources
- High Power ac−dc Adapters for Notebooks
- Flat Panel Display Power Converters
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | PCB/Cable/Panel | Modularity | Type | Wire Section | ISAT(A) | fres(MHz) | Q(%) | Ø Cable max.(mm) | Ø OD(mm) | Ø ID(mm) | Z @ 25 MHz 1 turn(Ω) | Z @ 100 MHz 1 turn(Ω) | W(mm) | H(mm) | IR(A) | Ti | Tl(mm) | Pins | IR(A) | L(mH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WR-TBL Series 2141 - 3.50 mm Horiz. Entry Modular, Rising Cage Clamp, PCB | Simulation– | Downloads6 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 2141 - 3.50 mm Horiz. Entry Modular | PCB/Cable/PanelPCB | ModularityYes | TypeHorizontal | Wire Section 24 to 16 (AWG) 0.2 to 1 (mm²) | – | – | – | – | – | – | – | – | – | – | – | – | – | Pins3 | Rated Current10 A | – | – | – | – | – | Length10.5 mm | MountTHT | ||
 | WE-SAFB, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-SAFB | – | – | – | – | – | – | – | Cable Diameter Max.1.4 mm | Outer Diameter4.1 mm | Inner Diameter1.6 mm | Impedance @ 25 MHz 1 turn33 Ω | Impedance @ 100 MHz 1 turn51 Ω | – | Height4.1 mm | – | – | – | – | – | – | – | – | – | Material3 W 800 | Length4 mm | – | ||||
 | WE-CMB Common Mode Power Line Choke, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | – | – | – | – | – | – | Width18.5 mm | Height33 mm | Rated Current3 A | – | – | Pins4 | Rated Current3 A | Inductance10 mH | DC Resistance105 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length27.5 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 | – | – | – | – | – | – | – | – | – | – | – | – | Width10.5 mm | – | – | – | – | – | Rated Current4.6 A | Inductance0.09 mH | DC Resistance40 mΩ | – | – | – | Length18.5 mm | MountTHT | |||
 | WE-LQ SMT Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQ SMT Inductor | – | – | – | – | Saturation Current0.16 A | Self Resonant Frequency2 MHz | Q-Factor28 % | – | – | – | – | – | Width3.2 mm | Height2.6 mm | – | – | – | – | Rated Current0.07 A | Inductance1 mH | DC Resistance30000 mΩ | – | – | – | Length4.5 mm | MountSMT | ||||
 | WP-BUFU REDCUBE PRESS-FIT with internal thread, full plain, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | – | – | – | – | – | – | – | – | – | – | – | – | Width7 mm | Height6 mm | Rated Current130 A | Inner ThreadM3 | Thread Length3.5 mm | Pins9 | Rated Current130 A | – | – | – | – | MaterialBrass | – | MountPress-Fit |