IC-Hersteller Analog Devices

IC-Hersteller (103)

Analog Devices LT3512

Monolithic High Voltage Isolated Flyback Converter

Details

TopologieSperrwandler
Eingangsspannung36-72 V
Schaltfrequenz40-650 kHz
Ausgang 13.3 V / 0.7 A
Ausgang 224 V / 0.11 A
Ausgang 3-15 V / 0.1 A
Ausgang 412 V / 0.2 A
Ausgang 515 V / 0.2 A
Ausgang 615 V / 0.1 A
Ausgang 75 V / 0.5 A
IC-RevisionB

Beschreibung

The LT3512 is a high voltage monolithic switching regulator specifically designed for the isolated flyback topology. No third winding or opto-isolator is required for regulation as the part senses output voltage directly from the primary-side flyback waveform. The device integrates a 420mA, 150V power switch, high voltage circuitry, and control into a high voltage 16-lead MSOP package with four leads removed.

The LT3512 operates from an input voltage range of 4.5V to 100V and delivers up to 4.5W of isolated output power. Two external resistors and the transformer turns ratio easily set the output voltage. Off-the-shelf transformers are available for several applications. The high level of integration and the use of boundary mode operation results in a simple, clean, tightly regulated application solution to the traditionally tough problem of isolated power delivery.

Eigenschaften

  • 4.5V to 100V Input Voltage Range
  • Internal 420mA, 150V Power Switch
  • Boundary Mode Operation
  • No Transformer Third Winding or
  • Opto-Isolator Required for Regulation
  • Improved Primary-Side Winding Feedback Load Regulation
  • VOUT Set with Two External Resistors
  • BIAS Pin for Internal Bias Supply and Power Switch Driver
  • No External Start-Up Resistor
  • 16-Lead MSOP Package

Remarks:

  • Refer page num 10 for more transformers.

Typische Anwendungen

  • Automotive Power Supplies
  • Isolated Telecom Power Supplies
  • Isolated Auxiliary/Housekeeping Power Supplies
  • Isolated Industrial Power Supplies
  • Medical Power Supplies

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Downloads Status Produktserie Muster
750311559
Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-FLYLT Flyback Transformers for Linear Technology
750311573
Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
750311662
Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
750311839
Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
Artikel Nr. Daten­blatt
750311559
750311573
750311662
750311839
Muster
Artikel Nr. Daten­blatt Downloads Status Produktserie Muster