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Details
| Topologie | Sperrwandler |
| Eingangsspannung | 10-40 V |
| Schaltfrequenz | 80-250 kHz |
| Ausgang 1 | 15 V / 2 A |
| Ausgang 2 | 15 V / 3 A |
| Ausgang 3 | 15 V / 1 A |
| IC-Revision | LT3748EMS |
Beschreibung
The LT®3748 is a switching regulator controller specificallydesigned for the isolated flyback topology and capable ofhigh power. It drives a low side external N-channel powerMOSFET from an internally regulated 7V supply. No thirdwinding or opto-isolator is required for regulation as thepart senses the isolated output voltage directly from theprimary-side flyback waveform.
Eigenschaften
- 5V to 100V Input Voltage Range
- 1.9A Average Gate Drive Source and Sink Current
- Boundary Mode Operation
- No Transformer Third Winding or Opto-Isolator Required for Regulation
- Primary-Side Winding Feedback Load Regulation
- VOUT Set with Two External Resistors
- INTVCC Pin for Control of Gate Driver Voltage
- Programmable Soft Start
- Programmable Undervoltage Lockout
- Available in MSOP Package
Typische Anwendungen
- Military and High Temperature Applications
- Isolated Industrial Power Supplies
- Telecom and Industrial
- High Power Automotive Supplies