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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 | Product series | Application | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 691214110003 | SPEC | – | 6 files | WR-TBL Series 2141 - 3.50 mm Horiz. Entry Modular | Rising Cage Clamp | PCB | Yes | Horizontal | 24 to 16 (AWG) 0.2 to 1 (mm²) | – | – | – | – | – | – | – | – | – | – | – | – | – | 3 | 10 | – | – | – | – | – | 10.5 | THT | |
 | 74270012 | SPEC | 2 files | WE-SAFB | – | – | – | – | – | – | – | – | 1.4 | 4.1 | 1.6 | 39 | 47 | – | 4.1 | – | – | – | – | – | – | – | – | – | 3 W 800 | 4 | – | ||
 | 744824310 | SPEC | 9 files | WE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | – | – | – | – | – | – | – | 18.5 | 33 | 3 | – | – | 4 | 3 | 10 | 105 | 250 | 1500 | MnZn | 27.5 | THT | ||
 | 7447013 | SPEC | – | 6 files | WE-FI Leaded Toroidal Line Choke | – | – | – | – | – | – | – | – | – | – | – | – | – | 10.5 | – | – | – | – | – | 4.6 | 0.09 | 40 | – | – | – | 18.5 | THT | |
 | 744045102 | SPEC | 8 files | WE-LQ SMT Inductor | – | – | – | – | – | 0.16 | 2 | 28 | – | – | – | – | – | 3.2 | 2.6 | – | – | – | – | 0.07 | 1 | 30000 | – | – | – | 4.5 | SMT | ||
 | 7461093 | SPEC | – | 4 files | WP-BUFU REDCUBE PRESS-FIT with internal thread, full plain | – | – | – | – | – | – | – | – | – | – | – | – | – | 7 | 6 | 130 | M3 | 3.5 | 9 | 130 | – | – | – | – | Brass | – | Press-Fit |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 691214110003 | SPEC | – |
| 74270012 | SPEC | |
| 744824310 | SPEC | |
| 7447013 | SPEC | – |
| 744045102 | SPEC | |
| 7461093 | SPEC | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | Application | 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 |
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