MP2487

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55V, 1A LED Driver



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Product Description

The MP2487 is a fixed frequency step-down switching regulator to deliver a constant current of up to 1A to high power LEDs. It integrates a high-side, high voltage power MOSFET with a current limit of 1.5A. The wide 4.5V to 55V input range accommodates a variety of step-down applications, making it ideal for automotive, industry and general lighting applications. Peak current mode control and 200mV reference are applied for fast loop response, easy compensation and accurate LED current regulation. The switching frequency is programmable with an external resistor up to 200kHz, which can prevent EMI (Electromagnetic Interference) noise problems. The thermal shut down provides reliable, fault tolerant operations. A 12µA quiescent current in shutdown mode allows its use in battery-powered applications. The MP2487 is available in a SOIC8E package.

Product Features

  • Wide 4.5V to 55V Operating Input Range
  • 220mΩ Internal Power MOSFET
  • Up to 200kHz Programmable Switching Frequency
  • 130μA Quiescent Current
  • Ceramic Capacitor Stable
  • Internal Soft-Start
  • Up to 97.5% Efficiency
  • 200mV Reference Voltage for High Efficiency
  • Available in a SOIC8E Package

Parametrics

  • Vin (min) (V)4.5
  • Vin (max) (V)55
  • Iout (max) (A)1
  • SyncNo
  • Open LED ProtectionYes
  • PackageSOIC-8E
  • Rds(on) (mΩ)220
  • GradeCatalog
  • TypeBuck
  • Vfb (V)0.2
  • fsw (max) (kHz)200
  • Iq (mA)130
  • Ishutdown (µA)12

Evaluation Kit

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Kit details

The EV2487DN-00A is an evaluation board for the MP2487DN, a step down converter designed for driving up to 10 white LEDs in series with 330mA current.

The MP2487 is a peak current mode control, fixed frequency regulator to deliver a constant current of up to 1A to high power white LEDs. Its low 200mV feedback voltage reduces power loss and improves efficiency.

The wide 4.5V to 55V input range accommodates a variety of step-down applications, making it ideal for automotive, industry and general lighting application.

The MP2487 is available in a SOIC8E package.

US$ 25.00 + tax