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A8435 - High Efficiency Charge Pump White LED Driver

General Description

The A8435 high efficiency charge pump IC offers a simple, low-cost white LED driver solution for portable electronics display applications.

Key Features

  • Proprietary adaptive control scheme (1×, 1.5×).
  • Maximum efficiency, over 92%.
  • 0.5% LED current matching.
  • 1 MHz operating frequency.
  • Flexible dimming control: ▫ Serial 11-level dimming, down to 5% ▫ PWM ▫ 2-bit parallel.
  • Drives up to 4 white LEDs.
  • 30 mA per LED.
  • 120 mA total continuous output.
  • Low input ripple and EMI.
  • Soft-start limits inrush current.
  • Short circuit protection.
  • Overvoltage protection.
  • Thermal shutdown protection.

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Full PDF Text Transcription (Reference)

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A8435 High Efficiency Charge Pump White LED Driver Features and Benefits ▪ Proprietary adaptive control scheme (1×, 1.5×) ▪ Maximum efficiency, over 92% ▪ 0.5% LED current matching ▪ 1 MHz operating frequency ▪ Flexible dimming control: ▫ Serial 11-level dimming, down to 5% ▫ PWM ▫ 2-bit parallel ▪ Drives up to 4 white LEDs ▪ 30 mA per LED ▪ 120 mA total continuous output ▪ Low input ripple and EMI ▪ Soft-start limits inrush current ▪ Short circuit protection ▪ Overvoltage protection ▪ Thermal shutdown protection ▪ Space-saving MLP-16 package: 3 × 3 mm footprint ▪ Very thin 0.