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EV2481-H-01A

Active
1.2A, 36V, 1.4MHz White LED Driver Buck/Boost Halogen Replacement Evaluation Board
  • Quantity Price
  • 1
    $25.00 /unit
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Datasheet (EN)

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Product Description

The EV2481-H-01A is a Buck-Boost converter evaluation board for the MP2481, a wide input step-up/down converter designed for driving up to 27 white LEDs. The EV board parameters are optimized for the load of 3 white LEDs in series, 9 strings paralleled.

The MP2481 is a 1.2A output, 36V white LED driver suitable for either step-down or inverting step-up/down applications. It achieves 1.2A peak output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes thermal shutdown, cycle-by-cycle peak current limiting, open LED protection and output short circuit protection.

The MP2481 incorporates both DC and PWM dimming onto a single control pin. The separate input reference ground pin allows for direct enable and/or dimming control for a positive to negative power conversion.

The MP2481 requires a minimum number of readily available standard external components and is available in 8-pin MSOP8 packages.

Product Features

  • Wide 4.5V to 26V Operating Input Range for Inverting Step up/down Applications
  • Drives up to 27 White LEDs
  • Up to 85% Efficiency
  • Analog and PWM Dimming
  • Cycle-by-Cycle Over Current Protection
  • Thermal Shutdown Protection
  • Open Strings Protection
  • Input Over Voltage Protection
  • Output short circuit protection

Parametrics

  • IC Supported 1MP2481

Monolithic IC

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IC Details

The MP2481 is a 36V,1.2A,white LED driver suitable for either step-down or inverting step up/down applications. It achieves 1.2A peak output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes thermal shutdown, cycle­by­cycle peak current limiting, input over voltage protection, open strings protection and output short circuit protection. The MP2481 incorporates both DC and PWM dimming onto a single control pin. The separate input reference ground pin allows for direct enable and/or dimming control for a positive to negative power conversion.The MP2481 requires a minimum number of readily available standard external components and is available in 8-pin MSOP8 package.