MP2480

Active
3A LED driver,Wide 5V to 36V Operating Input Range, Hysteretic Control, Short LED protection


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Product Description

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 provide reliable fault-tolerant operation. A 160µA quiescent current allows for use in battery-powered applications.  The MP2480 is available in SOIC8-EP with an exposed pad on the bottom.

Product Features

  • 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

Parametrics

  • SyncNo
  • Open LED ProtectionNo
  • PackageSOIC-8E
  • Rds(on) (mΩ)150
  • GradeCatalog
  • TypeBuck
  • Vfb (V)0.2
  • Vout (max) (V)30
  • fsw (max) (kHz)2000
  • fsw (min) (kHz)200
  • Iq (mA)0.16
  • Iout (max) (A)3
  • Vin (max) (V)36
  • Vin (min) (V)4.5
  • Ishutdown (µA)2

Evaluation Kit

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Kit details

The EV2480-PR-00A Evaluation Board is designed to demonstrate the capabilities of MP2480DPR. The MP2480 is step-down switching regulator to deliver a constant current of up to 3A for high power LED

With a 30-36V input VIN and an EN DC signal which is higher than 2V, EV2480-PR-00A can deliver a regulated current to drive a LED string. The LED current is regulated to about 2A.

$25.00 + tax