Home Energiemanagement Power over Ethernet (PoE)-ICs Stromversorgte Geräte

LM5070

AKTIV

PoE-PD der Klasse 3 mit Flyback-DC/DC-Controller mit einstellbarem UVLO

Produktdetails

PoE standards supported 802.3at Type 1 (802.3af) PD power level 13W DC/DC control PD and DC/DC Vin (max) (V) 75 Vin (min) (V) 1.8 PoE current limit (min) (mA) 300 PoE inrush limit (mA) (typ) (A) Programmable rDS(on) per FET (typ) (mΩ) 1000 Features Error amplifier, Programmable UVLO, Thermal shutdown Fault response Thermal Cycling Operating temperature range (°C) -40 to 125 Rating Catalog
PoE standards supported 802.3at Type 1 (802.3af) PD power level 13W DC/DC control PD and DC/DC Vin (max) (V) 75 Vin (min) (V) 1.8 PoE current limit (min) (mA) 300 PoE inrush limit (mA) (typ) (A) Programmable rDS(on) per FET (typ) (mΩ) 1000 Features Error amplifier, Programmable UVLO, Thermal shutdown Fault response Thermal Cycling Operating temperature range (°C) -40 to 125 Rating Catalog
TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm) WSON (NHQ) 16 25 mm² (5 mm × 5 mm)
  • Fully Compliant 802.3af Power Interface Port
  • 80V, 1Ω, 400 mA Internal MOSFET
  • Programmable Inrush Current Limit
  • Detection Resistor Disconnect Function
  • Programmable Classification Current
  • Programmable Under-voltage Lockout with Programmable Hysteresis
  • Thermal Shutdown Protection
  • Current Mode Pulse Width Modulator
  • Supports Both Isolated and Non-Isolated Applications
  • Error Amplifier and Reference for Non-Isolated Applications
  • Programmable Oscillator Frequency
  • Programmable Soft-Start
  • 80% Maximum Duty Cycle Limiter, Slope Compensation (-80 device)
  • 50% Maximum Duty Cycle Limiter, No Slope Compensation (-50 device)
  • 800 mA Peak Gate Driver

Packages

  • TSSOP-16
  • WSON-16 (5 mm x 5 mm)

All trademarks are the property of their respective owners.

  • Fully Compliant 802.3af Power Interface Port
  • 80V, 1Ω, 400 mA Internal MOSFET
  • Programmable Inrush Current Limit
  • Detection Resistor Disconnect Function
  • Programmable Classification Current
  • Programmable Under-voltage Lockout with Programmable Hysteresis
  • Thermal Shutdown Protection
  • Current Mode Pulse Width Modulator
  • Supports Both Isolated and Non-Isolated Applications
  • Error Amplifier and Reference for Non-Isolated Applications
  • Programmable Oscillator Frequency
  • Programmable Soft-Start
  • 80% Maximum Duty Cycle Limiter, Slope Compensation (-80 device)
  • 50% Maximum Duty Cycle Limiter, No Slope Compensation (-50 device)
  • 800 mA Peak Gate Driver

Packages

  • TSSOP-16
  • WSON-16 (5 mm x 5 mm)

All trademarks are the property of their respective owners.

The LM5070 power interface port and pulse width modulation (PWM) controller provides a complete integrated solution for Powered Devices (PD) that connect into Power over Ethernet (PoE) systems. The LM5070 integrates an 80V, 400mA line connection switch and associated control for a fully IEEE 802.3af compliant interface with a full featured current mode pulse width modulator dc-dc converter. All power sequencing requirements between the controller interface and switch mode power supply (SMPS) are integrated into the IC. Two options are available providing either an 80% maximum duty cycle limit with slope compensation (on the –80 suffix) device or a 50% maximum duty cycle limit and no slope compensation on the (–50 suffix) device.

The LM5070 power interface port and pulse width modulation (PWM) controller provides a complete integrated solution for Powered Devices (PD) that connect into Power over Ethernet (PoE) systems. The LM5070 integrates an 80V, 400mA line connection switch and associated control for a fully IEEE 802.3af compliant interface with a full featured current mode pulse width modulator dc-dc converter. All power sequencing requirements between the controller interface and switch mode power supply (SMPS) are integrated into the IC. Two options are available providing either an 80% maximum duty cycle limit with slope compensation (on the –80 suffix) device or a 50% maximum duty cycle limit and no slope compensation on the (–50 suffix) device.

Herunterladen Video mit Transkript ansehen Video

Ähnliche Produkte, die für Sie interessant sein könnten

Ähnliche Funktionalität wie der verglichene Baustein.
TPS23753A AKTIV PoE-Schnittstelle nach IEEE 802.3-2005 und Controller für isolierte Wandler mit erweiterter ESD-Ride This product integrates the PD & PWM controller and provides more robust protection from unexpected voltage transients (rated to 100V).

Technische Dokumentation

Keine Ergebnisse gefunden. Bitte geben Sie einen anderen Begriff ein und versuchen Sie es erneut.
Alle anzeigen 4
Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt LM5070 Integrated Power Over Ethernet PD Interface and PWM Controller datasheet (Rev. G) 29.03.2013
Auswahlhilfe Power Management Guide 2018 (Rev. R) 25.06.2018
Benutzerhandbuch AN-1358 LM5070 (Rev. A) 06.05.2013
Benutzerhandbuch AN-1346 LM5070 (Rev. C) 06.05.2013

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
WSON (NHQ) 16 Ultra Librarian

Bestellen & Qualität

Empfohlene Produkte können Parameter, Evaluierungsmodule oder Referenzdesigns zu diesem TI-Produkt beinhalten.

Support und Schulungen

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

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