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MPQ2483 - 2.5A Programmable Frequency LED Driver

General Description

The MPQ2483 is a 55V, LED driver suitable for either step-down or inverting step-up/down applications.

It achieves 2.5A peak current over a wide input supply range with excellent load and line regulation.

Current mode operation provides fast transient response and eases loop stabilization.

Key Features

  • 2.5A Maximum Peak Current.
  • Buck or Buck-Boost Modes.
  • Wide 4.5V to 55V Operating Input Range.
  • 0.28Ω Internal Power MOSFET Switch.
  • Analog and PWM Dimming.
  • 0.198V Reference Voltage.
  • 5μA Shutdown Mode.
  • Stable with Low ESR Capacitors.
  • Cycle-by-Cycle Over Current Protection.
  • Thermal Shutdown, Over Voltage, Short Circuit & Open String Protection.
  • AEC-Q100 Qualified.

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Other Datasheets by Monolithic Power Systems

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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The Future of Analog IC Technology DESCRIPTION The MPQ2483 is a 55V, LED driver suitable for either step-down or inverting step-up/down applications. It achieves 2.5A peak 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, output over voltage protection, open strings protection and output short circuit protection. The MPQ2483 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.