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A8501 - 4 Channel x 100 mA WLED/RGB Driver

General Description

TheA8501 is a multioutputWLED/RGB driver for backlighting medium-size displays.

The A8501 integrates a boost converter and four 100 mA current sinks.

LED channels can be tied together for up to 400 mA sink capability.

Key Features

  • 600 kHz to 2.2 MHz switching frequency.
  • ability to operate above the AM band.
  • Internal bias supply for single-supply operation (VIN = 6.8 to 21 V).
  • Boost converter with integrated 40 V DMOS switch and OVP.
  • load-dump protection.
  • 3.5 µA shutdown current.
  • limits battery drain.
  • Active current sharing between LED strings for 0.8% current matching and 0.7% accuracy.
  • Drive up to 9 series LEDs in 4 parallel strings, 36 LEDs maxi.

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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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A8501 2 MHz, 4 Channel×100 mA WLED/RGB Driver with Output Disconnect FEATURES AND BENEFITS • 600 kHz to 2.2 MHz switching frequency—ability to operate above the AM band • Internal bias supply for single-supply operation (VIN = 6.8 to 21 V) • Boost converter with integrated 40 V DMOS switch and OVP–load-dump protection • 3.5 µA shutdown current—limits battery drain • Active current sharing between LED strings for 0.8% current matching and 0.7% accuracy • Drive up to 9 series LEDs in 4 parallel strings, 36 LEDs maximum (Vf = 3.