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Texas Instruments LM5020 | Demoboard PMP30853

SiC Based 500W HV Buck Converter Reference Design

Details

TopologieAbwärtswandler
Eingangsspannung500-600 V
Ausgang 1400 V / 1.25 A
IC-RevisionD

Beschreibung

The LM5020 high voltage pulse-width-modulation (PWM) controller contains all of the features needed to implement single ended primary power converter topologies. Output voltage regulation is based on current-mode control, which eases the design of loop compensation while providing inherent line feed-forward. The LM5020 includes a high-voltage start-up regulator that operates over a wide input range up to 100V. The PWM controller is designed for high speed capability including an oscillator frequency range to 1MHz and total propagation delays less than 100ns. Additional features include an error amplifier, precision reference, line under-voltage lockout, cycle-by-cycle current limit, slope compensation, softstart, oscillator synchronization capability and thermal shutdown. The controller is available in both MSOP-10 and LLP-10 packages.

Eigenschaften

  • Internal Start-up Bias Regulator
  • Error Amplifier
  • Precision Voltage Reference
  • Programmable Softstart
  • 1A Peak Gate Driver
  • Maximum Duty Cycle Limiting (80% for LM5020-1 or 50% for LM5020-2)
  • Programmable Line Under Voltage Lockout (UVLO) with Adjustable Hysteresis
  • Cycle-by-Cycle Over-Current Protection
  • Slope Compensation (LM5020-1)
  • Programmable Oscillator Frequency with Synchronization Capability
  • Current Sense Leading Edge Blanking
  • Thermal Shutdown Protection

Typische Anwendungen

  • Telecommunication Power Converters
  • Industrial Power Converters
  • +42V Automotive Systems

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieØ Kabel max.
(mm)
Ø OD
(mm)
Ø ID
(mm)
L
(mm)
Z @ 25 MHz
1 Windung
(Ω)
Z @ 100 MHz
1 Windung
(Ω)
Z @ 25 MHz
2 Windungen
(Ω)
Z @ 100 MHz
2 Windungen
(Ω)
Material Muster
74270033SPEC
2 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-AFB 4.4 9.5 4.75 9.5 56 162 243 501 3 W 800
750319295SPEC
Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. Power Inductor
Artikel Nr. Daten­blatt Simu­lation
74270033SPEC
750319295SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieØ Kabel max.
(mm)
Ø OD
(mm)
Ø ID
(mm)
L
(mm)
Z @ 25 MHz
1 Windung
(Ω)
Z @ 100 MHz
1 Windung
(Ω)
Z @ 25 MHz
2 Windungen
(Ω)
Z @ 100 MHz
2 Windungen
(Ω)
Material Muster