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MAQ3203 - High-Brightness LED Driver Controller

General Description

The MAQ3203 is a hysteretic, step-down, constantcurrent, High-Brightness LED (HB LED) driver.

It provides an ideal solution for interior/exterior lighting, architectural and ambient lighting, LED bulbs, and other general illumination applications.

Key Features

  • AEC-Q100 qualified.
  • 4.5V to 42V input voltage range.
  • High efficiency (>90%).
  • ±5% LED current accuracy.
  • Dither enabled for low EMI.
  • High-side current sense.
  • Dedicated dimming control input.
  • Hysteretic control (no compensation!).
  • Up to 1.5MHz switching frequency.
  • Adjustable constant LED current.
  • Over-temperature protection.
  • 40°C to +125°C junction temperature range.

📥 Download Datasheet

Datasheet Details

Part number MAQ3203
Manufacturer Micrel Semiconductor
File Size 1.04 MB
Description High-Brightness LED Driver Controller
Datasheet download datasheet MAQ3203 Datasheet

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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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MAQ3203 High-Brightness LED Driver Controller with High-Side Current Sense General Description The MAQ3203 is a hysteretic, step-down, constantcurrent, High-Brightness LED (HB LED) driver. It provides an ideal solution for interior/exterior lighting, architectural and ambient lighting, LED bulbs, and other general illumination applications. The MAQ3203 is well suited for lighting applications requiring a wide-input voltage range. The hysteretic control gives good supply rejection and fast response during load transients and PWM dimming. The high-side current sensing and on-chip current-sense amplifier delivers LED current with ±5% accuracy. An external high-side currentsense resistor is used to set the output current.