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Details
| Topologie | Sonstige Topologie |
| Eingangsspannung | 37-57 V |
| Ausgang 1 | 20 V / 3 A |
Beschreibung
The NCP12700 is a fixed frequency, peak current mode, PWM controller containing all of the features necessary for implementing single-ended power converter topologies. The device features a high voltage startup capable of operating over a wide input range (9 – 120/200 V MSOP10/WQFN10) and supplying at least 20 mA to provide temporary bias to VCC during system startup. The controller offers an adjustable soft-start, input voltage UVLO protection, and an adjustable Over-Power Protection circuit which limits the total power capability of the circuit as the input voltage increases, easing the system thermal design. The UVLO pin also features a shutdown comparator which allows for an external signal to disable switching and bring the controller into a low quiescent state.
Eigenschaften
- Wide Input Range (9 – 120/200 V; MSOP10/WQFN10)
- Current Mode Control with Integrated Slope Compensation
- Single Resistor Programmable Oscillator
- 1 A / 2.8 A Source / Sink Gate Driver
- Input Voltage UVLO with Hysteresis
- Several Fault Protections:
- User Adjustable Over-Power Protection
- Overload Protection with 30 ms Overload Timer
- NTC-Compatible Fault Interface for Thermal Protection
- Output OVP Fault Interface
Typische Anwendungen
- Low to medium voltage isolated DC-DC, CCM & DCM Flyback Converters, Forward converters
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | C | Tol. C | VR(V (DC)) | Bauform | Betriebstemperatur | DF(%) | RISO | Keramiktyp | L(mm) | B(mm) | H(mm) | Fl(mm) | Verpackung | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC(mΩ) | fres(MHz) | Material | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 16 V(DC), 4.7 nF, ±10% | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-CSGP MLCCs 16 V(DC) | Kapazität4.7 nF | Kapazität±10% | Nennspannung16 V (DC) | Bauform0603 | Betriebstemperatur -55 °C up to +125 °C | Verlustfaktor3.5 % | Isolationswiderstand10 GΩ | KeramiktypX7R Klasse II | Länge1.6 mm | Breite0.8 mm | Höhe0.8 mm | Pad Dimension0.4 mm | Verpackung7" Tape & Reel | – | – | – | – | – | – | – | |||||
 | WE-HCI SMT-Hochstrominduktivität, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-HCI SMT-Hochstrominduktivität | – | – | – | Bauform7050 | Betriebstemperatur -40 °C up to +150 °C | – | – | – | Länge7 mm | Breite6.9 mm | Höhe4.8 mm | – | – | Induktivität0.47 µH | Performance Nennstrom31.9 A | Sättigungsstrom 19 A | Sättigungsstrom @ 30%20 A | Gleichstromwiderstand1.35 mΩ | Eigenresonanzfrequenz235 MHz | MaterialSuperflux | ||||
750318890 | Flyback Transformer, –, – | Simulation– | Downloads– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | Produktserie Flyback Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |