Home Energiemanagement DC/DC-Schaltregler DC/DC-Controller
Home
Energiemanagement
DC/DC-Schaltregler
DC/DC-Controller

LM5115A

AKTIV

Sekundärseitiger Post-Regulator/synchroner Abwärtsregler (Buck), 75 V, mit Power-Up/Power-Down-Track

Jetzt bestellen
Datenblatt

Eine neuere Version dieses Produkts ist verfügbar

open-in-new Alternativen vergleichen
Selbe Funktionalität wie der verglichene Baustein bei abweichender Anschlussbelegung
LM5141 AKTIV Synchroner Abwärts-Controller (Buck), niedriger Ruhestrom, großer Eingangsbereich Optional spread spectrum for improved EMI.

LM5115A

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Rating Catalog Topology Buck Iout (max) (A) 15 Vin (max) (V) 75 Vin (min) (V) 4.5 Vout (max) (V) 13.5 Vout (min) (V) 0.75 Control mode current mode Features Frequency synchronization, Power good Duty cycle (max) (%) 85 Number of phases 1 Operating temperature range (°C) -40 to 125
Rating Catalog Topology Buck Iout (max) (A) 15 Vin (max) (V) 75 Vin (min) (V) 4.5 Vout (max) (V) 13.5 Vout (min) (V) 0.75 Control mode current mode Features Frequency synchronization, Power good Duty cycle (max) (%) 85 Number of phases 1 Operating temperature range (°C) -40 to 125
TSSOP (PW) 16 32 mm² 5 x 6.4
  • Power-up/Power-down Tracking
  • Self-synchronization to Main Channel Output
  • Leading Edge Pulse Width Modulation
  • Valley Current Mode Control
  • Standalone DC/DC Synchronous Buck Mode
  • Operates from AC or DC Input up to 75V
  • Wide 4.5V to 30V Bias Supply Range
  • Wide 0.75V to 13.5V Output Range.
  • Top and Bottom Gate Drivers Sink 2.5A Peak
  • Adaptive Gate Driver Dead-time Control
  • Wide Bandwidth Error Amplifier (4MHz)
  • Programmable Soft-start
  • Thermal Shutdown Protection
  • TSSOP-16 Package

All trademarks are the property of their respective owners.

  • Power-up/Power-down Tracking
  • Self-synchronization to Main Channel Output
  • Leading Edge Pulse Width Modulation
  • Valley Current Mode Control
  • Standalone DC/DC Synchronous Buck Mode
  • Operates from AC or DC Input up to 75V
  • Wide 4.5V to 30V Bias Supply Range
  • Wide 0.75V to 13.5V Output Range.
  • Top and Bottom Gate Drivers Sink 2.5A Peak
  • Adaptive Gate Driver Dead-time Control
  • Wide Bandwidth Error Amplifier (4MHz)
  • Programmable Soft-start
  • Thermal Shutdown Protection
  • TSSOP-16 Package

All trademarks are the property of their respective owners.

The LM5115A controller contains all of the features necessary to produce multiple tracking outputs using the Secondary Side Post Regulation (SSPR) technique. The SSPR technique develops a highly efficient and well regulated auxiliary output from the secondary side switching waveform of an isolated power converter. LM5115A can be also used as a standalone DC/DC synchronous buck controller (Refer to section). Regulation of the auxiliary output voltage is achieved by leading edge pulse width modulation (PWM) of the main channel duty cycle. Leading edge modulation is compatible with either current mode or voltage mode control of the main output. The LM5115A drives external high-side and low-side NMOS power switches configured as a synchronous buck regulator. A current sense amplifier provides overload protection and operates over a wide common mode input range. Additional features include a low dropout (LDO) bias regulator, error amplifier, precision reference, adaptive dead time control of the gate signals and thermal shutdown.

The LM5115A controller contains all of the features necessary to produce multiple tracking outputs using the Secondary Side Post Regulation (SSPR) technique. The SSPR technique develops a highly efficient and well regulated auxiliary output from the secondary side switching waveform of an isolated power converter. LM5115A can be also used as a standalone DC/DC synchronous buck controller (Refer to section). Regulation of the auxiliary output voltage is achieved by leading edge pulse width modulation (PWM) of the main channel duty cycle. Leading edge modulation is compatible with either current mode or voltage mode control of the main output. The LM5115A drives external high-side and low-side NMOS power switches configured as a synchronous buck regulator. A current sense amplifier provides overload protection and operates over a wide common mode input range. Additional features include a low dropout (LDO) bias regulator, error amplifier, precision reference, adaptive dead time control of the gate signals and thermal shutdown.
filter Andere DC/DC-Controller suchen
Herunterladen Video mit Transkript ansehen Video

Technische Dokumentation

star =Von TI ausgewählte Top-Empfehlungen für dieses Produkt
Keine Ergebnisse gefunden. Bitte geben Sie einen anderen Begriff ein und versuchen Sie es erneut.
Alle anzeigen 2
Top-Dokumentation Typ Titel Format-Optionen Datum
* Data sheet Secondary Side Post Regulator/DC-DC Converter with Power-up/Power-down Tracking datasheet (Rev. B) 26 Mär 2013
Application note Minimizing FET Losses For a High Input Rail Buck Converter (Rev. A) 23 Apr 2013

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
TSSOP (PW) 16 Ultra Librarian
Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

Bestellen & Qualität

Beinhaltete Information:
  • RoHS
  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
  • Werksstandort
  • Montagestandort

Support und Schulungen

TI E2E™-Foren mit technischem Support von TI-Ingenieuren

Alle Forenthemen auf Englisch anzeigen

Inhalte werden ohne Gewähr von TI und der Community bereitgestellt. Sie stellen keine Spezifikationen von TI dar. Siehe Nutzungsbedingungen.

Bei Fragen zu den Themen Qualität, Gehäuse oder Bestellung von TI-Produkten siehe TI-Support. ​​​​​​​​​​​​​​

Videos