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MP3202 - 1.3A Fixed Frequency White LED Driver

Description

The MP3202 is a step-up converter designed for driving up to 39 white LEDs (13 strings of 3 LEDs each) from a 5V system rail.

The MP3202 uses a current mode, fixed frequency architecture to regulate the LED current, which is measured through an external current sense resistor.

Features

  • 2.5V to 6V Input Voltage Range.
  • On Board Power MOSFET.
  • Drives up to 39 White LEDs at 5V Input.
  • Up to 92% Efficiency.
  • Over 1MHz Fixed Switching Frequency.
  • Open Load Shutdown.
  • Low 104mV Feedback Voltage.
  • Soft-Start/PWM Dimming.
  • UVLO, Thermal Shutdown.
  • Internal 1.3A Current Limit.
  • Available in TSOT23-6 and QFN8 Packages.

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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 MP3202 is a step-up converter designed for driving up to 39 white LEDs (13 strings of 3 LEDs each) from a 5V system rail. The MP3202 uses a current mode, fixed frequency architecture to regulate the LED current, which is measured through an external current sense resistor. Its low 104mV feedback voltage reduces power loss and improves efficiency. The OV pin monitors the output voltage and turns off the converter if an over-voltage condition is present due to an open circuit condition. The MP3202 includes under-voltage lockout, current limiting and thermal overload protection preventing damage in the event of an output overload. The MP3202 is available in small 6-pin TSOT23 or 8-pin QFN (2mm x 2mm) packages. MP3202 1.
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