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Details
| Topologie | Sperrwandler |
| Eingangsspannung | 90-130 V |
| Ausgang 1 | 24 V / 3 A |
| IC-Revision | B |
Beschreibung
The LM5023 is a quasi-resonant pulse width modulated (PWM) controller which contains all of the features needed to implement a highly efficient off-line power supply. The LM5023 uses the transformer auxiliary winding for demagnetization detection to ensure critical conduction mode (CrCM) operation. The LM5023 features a hiccup mode for overcurrent protection with an auto restart to reduce the stress on the power components during an overload. A skip-cycle mode reduces power consumption at light loads for energy conservation applications (ENERGY STAR®, CEPCP, and so forth). The LM5023 also uses the transformer auxiliary winding for output overvoltage protection (OVP); if an OVP fault is detected the LM5023 latches off the controller.
Eigenschaften
- Critical Conduction Mode
- Peak-Current Mode Control
- Skip-Cycle Mode for Low-Standby Power
- Hiccup Mode for Continuous Overload Protection
- Cycle-by-Cycle Overcurrent Protection MaintainsAccuracy Over the Universal AC Line
- Line-Voltage Feedforward
- OVP Protection by Sensing the Auxiliary Winding
- Integrated 0.7-A Peak Gate Driver
- Direct Opto-Coupler Interface
- Leading Edge Blanking of Current Sense Signal
- Maximum Frequency Clamp 130 kHz
- Programmable Soft-Start
- Thermal Shutdown
- 8-Pin VSSOP Package
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | C | Sicherheitsklasse | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Raster(mm) | Verpackung | IR(A) | L(mH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | B(mm) | H(mm) | Montageart | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WCAP-FTX2 Folienkondensatoren, Across the mains, 100 nF | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-FTX2 Folienkondensatoren | Kapazität100 nF | SicherheitsklasseX2 | Spannungsanstiegsgeschwindigkeit300 V/µs | Verlustfaktor0.1 % | Isolationswiderstand30 GΩ | Raster15 mm | VerpackungLose | – | – | – | Nennspannung275 V (AC) | – | – | Länge18 mm | Breite6 mm | Höhe12 mm | MontageartBoxed THT | ||||
 | WE-CMB Stromkompensierte Netzdrossel, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-CMB Stromkompensierte Netzdrossel | – | – | – | – | – | – | – | Nennstrom2 A | Induktivität1 mH | Gleichstromwiderstand45 mΩ | Nennspannung250 V (AC) | Prüfspannung1500 V (AC) | MaterialMnZn | Länge15 mm | Breite7.8 mm | Höhe18 mm | MontageartTHT |