Startseite Energiemanagement AC/DC- und DC/DC-Controller (externer FET)

LM5041

AKTIV

Kaskadierter PWM-Controller mit Hiccup-Modus

Produktdetails

Vin (max) (V) 15 Operating temperature range (°C) -40 to 125 Control mode Current Topology Push pull Rating Catalog Features Current limiting, Programmable soft start, Synchronization pin Duty cycle (max) (%) 50
Vin (max) (V) 15 Operating temperature range (°C) -40 to 125 Control mode Current Topology Push pull Rating Catalog Features Current limiting, Programmable soft start, Synchronization pin Duty cycle (max) (%) 50
TSSOP (PW) 16 32 mm² 5 x 6.4 WSON (NHQ) 16 25 mm² 5 x 5
  • Internal Start-up Bias Regulator
  • Programmable Line Under-Voltage Lockout (UVLO) with Adjustable Hysteresis
  • Current Mode Control
  • Internal Error Amplifier with Reference
  • Dual Mode Over-Current Protection
  • Leading Edge Blanking
  • Programmable Push-Pull Overlap or Dead Time
  • Internal 1.5A Push-Pull Gate Drivers
  • Programmable Soft-start
  • Programmable Oscillator with Sync Capability
  • Precision Reference
  • Thermal Shutdown

Packages

  • TSSOP-16
  • WSON-16 (5x5 mm) Thermally Enhanced

All trademarks are the property of their respective owners.

  • Internal Start-up Bias Regulator
  • Programmable Line Under-Voltage Lockout (UVLO) with Adjustable Hysteresis
  • Current Mode Control
  • Internal Error Amplifier with Reference
  • Dual Mode Over-Current Protection
  • Leading Edge Blanking
  • Programmable Push-Pull Overlap or Dead Time
  • Internal 1.5A Push-Pull Gate Drivers
  • Programmable Soft-start
  • Programmable Oscillator with Sync Capability
  • Precision Reference
  • Thermal Shutdown

Packages

  • TSSOP-16
  • WSON-16 (5x5 mm) Thermally Enhanced

All trademarks are the property of their respective owners.

The LM5041 PWM controller contains all of the features necessary to implement either current-fed or voltage-fed push-pull or bridge power converters. These “Cascaded” topologies are well suited for multiple output and higher power applications. The LM5041’s four control outputs include: the buck stage controls (HD and LD) and the push-pull control outputs (PUSH and PULL). Push-pull outputs are driven at 50% nominal duty cycle at one half of the switching frequency of the buck stage and can be configured for either a specified overlap time (for current-fed applications) or a specified both-off time (for voltage-fed applications). Push-pull stage MOSFETs can be driven directly from the internal gate drivers while the buck stage requires an external driver such as the LM5102. The LM5041 includes a high-voltage start-up regulator that operates over a wide input range of 15V to 100V. The PWM controller is designed for high-speed capability including an oscillator frequency range up to 1 MHz and total propagation delays of less than 100ns. Additional features include: line Under-Voltage Lockout (UVLO), soft-start, an error amplifier, precision voltage reference, and thermal shutdown.

The LM5041 PWM controller contains all of the features necessary to implement either current-fed or voltage-fed push-pull or bridge power converters. These “Cascaded” topologies are well suited for multiple output and higher power applications. The LM5041’s four control outputs include: the buck stage controls (HD and LD) and the push-pull control outputs (PUSH and PULL). Push-pull outputs are driven at 50% nominal duty cycle at one half of the switching frequency of the buck stage and can be configured for either a specified overlap time (for current-fed applications) or a specified both-off time (for voltage-fed applications). Push-pull stage MOSFETs can be driven directly from the internal gate drivers while the buck stage requires an external driver such as the LM5102. The LM5041 includes a high-voltage start-up regulator that operates over a wide input range of 15V to 100V. The PWM controller is designed for high-speed capability including an oscillator frequency range up to 1 MHz and total propagation delays of less than 100ns. Additional features include: line Under-Voltage Lockout (UVLO), soft-start, an error amplifier, precision voltage reference, and thermal shutdown.

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Technische Dokumentation

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Alle anzeigen 5
Typ Titel Datum
* Data sheet LM5041 Cascaded PWM Controller datasheet (Rev. D) 25 Mär 2013
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
EVM User's guide AN-1299 LM5041 Evaluation Board (Rev. A) 06 Mai 2013
Application note DC - DC Converter Featuring the Cascaded Power Converter Topology 21 Mär 2007
White paper Communications System Power Supply Designs 01 Jan 2004

Design und Entwicklung

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

Evaluierungsplatine

LM5041EVAL — Kaskadierende PWM-Controller

LM5041 Cascaded PWM Controller

Benutzerhandbuch: PDF
Simulationsmodell

LM5041 TINA-TI Reference Design

SNVM423.TSC (613 KB) - TINA-TI Reference Design
Simulationsmodell

LM5041 TINA-TI Transient Spice Model

SNVM424.ZIP (28 KB) - TINA-TI Spice Model
Simulationsmodell

LM5041 Unencrypted PSpice Transient Model Package (Rev. A)

SNVM422A.ZIP (53 KB) - PSpice Model
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
TSSOP (PW) 16 Ultra Librarian
WSON (NHQ) 16 Ultra Librarian

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

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