IC-Hersteller Monolithic Power Systems

IC-Hersteller (99)

Monolithic Power Systems MP2480

5V―36V Input, 3A High Power LED Driver

Details

TopologieAbwärtswandler
Eingangsspannung30-36 V
Schaltfrequenz2000 kHz
Ausgang 124 V / 2 A
IC-Revision1.01

Beschreibung

The MP2480 is step-down switching regulator that delivers a constant current of up to 3A to high-power LEDs. It integrates a high-side, high-voltage power MOSFET with a current limit of 4.3A. The wide 5V to 36V input range accommodates a variety of step-down applications, making it ideal for general lighting and LCD backlighting applications. Hysteretic current-mode control helps provide for a very fast response, which makes the 20kHz dimming frequency possible. MPS’s proprietary feedback control minimizes the number of external components while delivering an LED current with a typical accuracy of ±3%.The switching frequency goes up to 2MHz, thus permitting smaller components. Thermal shut down, and short circuit protection providereliable fault-tolerant operation. A 160µA quiescent current allows for use in batterypowered applications.The MP2480 is available in SOIC8-EP with an exposed pad on the bottom.

Eigenschaften

  • Wide 5V to 36V Operating Input Range
  • Up to 95% Efficiency
  • Hysteretic Control with No Compensation
  • No Output Capacitor Required
  • ±3% LED Current Accuracy
  • Up to 2MHz Switching Frequency
  • Up to 20kHz Dimming Frequency
  • 200mV Reference Voltage
  • Short-Circuit Protection with Integrated High-Side MOSFET
  • Thermal Shut Down
  • Available in SOIC8-EP

Typische Anwendungen

  • High Power LED Driver
  • General Lighting
  • LCD Backlighting

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieL
(µH)
ISAT1
(A)
ISAT,30%
(A)
IR,40K
(A)
IRP,40K
(A)
RDC max.
(mΩ)
fres
(MHz)
BauformVersion Muster
744770147SPEC
8 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-PD SMT-Speicherdrossel 47 3.3 4.3 3 4.25 64 7.9 1280 Standard
Artikel Nr. Daten­blatt Simu­lation
744770147SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieL
(µH)
ISAT1
(A)
ISAT,30%
(A)
IR,40K
(A)
IRP,40K
(A)
RDC max.
(mΩ)
fres
(MHz)
BauformVersion Muster