MP2483

Active
2.5A, 55V, Programmable Frequency LED Driver


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Product Description

The MP2483 is a 55V, 2.5A, white LED driver suitable for either step-down or inverting step up/down applications. It achieves 2.5A 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 MP2483 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 MP2483 requires a minimum number of readily available standard external components and is available in a 10-pin 3mm x 3mm QFN package.

Product Features

  • 2.5A Maximum Output Current
  • Unique Step-up/down Operation (Buck-Boost Mode)
  • Wide 4.5V to 55V Operating Input Range for Step-Down Applications (Buck Mode)
  • 0.28O Internal Power MOSFET Switch
  • Adjustable Switching Frequency
  • Analog and PWM Dimming
  • 0.198V Reference Voltage
  • 5µA Shutdown Mode
  • No minimum LED required
  • Stable with Low ESR Output Ceramic Capacitors

Parametrics

  • Vin (min) (V)4.5
  • Vin (max) (V)55
  • Vout (max) (V)55
  • Iout (max) (A)2.5
  • SyncNo
  • Open LED ProtectionYes
  • PackageQFN-10 (3x3)
  • Rds(on) (mΩ)280
  • GradeCatalog
  • TypeLow-Side Buck
  • Vfb (V)0.198
  • Iq (mA)0.8
  • Ishutdown (µA)3.4

Evaluation Kit

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Kit details

The MP2483 is a 55V, 2.5A, white LED driver suitable for either step-down or inverting step‑up/down applications. It achieves 2.5A 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 MP2483 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 MP2483 requires a minimum number of readily available standard external components and is available in 10-pin 3mm x 3mm QFN packages.

US$ 25.00 + tax


Evaluation Kit

GET THIS KIT

Kit details

The MP2483 is a 55V, 2.5A, white LED driver suitable for either step-down or inverting step‑up/down applications. It achieves 2.5A 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 MP2483 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 MP2483 requires a minimum number of readily available standard external components and is available in 10-pin 3mm x 3mm QFN packages.

US$ 25.00 + tax


Evaluation Kit

GET THIS KIT

Kit details

The MP2483 is a 55V, 2.5A, white LED driver suitable for either step-down or inverting step‑up/down applications. It achieves 2.5A 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 MP2483 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 MP2483 requires a minimum number of readily available standard external components and is available in 10-pin 3mm x 3mm QFN packages.

US$ 25.00 + tax