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A8518-1 - Fault-Tolerant LED Driver

Download the A8518-1 datasheet PDF. This datasheet also covers the A8518 variant, as both devices belong to the same fault-tolerant led driver family and are provided as variant models within a single manufacturer datasheet.

General Description

The A8518 is a multi-output LED driver for small-size LCD backlighting.

It integrates a current-mode boost converter with internal power switch and two current sinks.

The boost converter can drive up to 22 white LEDs, 11 LEDs per string, at 200 mA.

Key Features

  • Automotive AEC-100 qualified.
  • Fully integrated 42 V MOSFET for boost converter.
  • Fully integrated LED current sinks.
  • Withstands surge input to 40 VIN for load dump.
  • Operates down to 3.9 VIN (max) for idle stop.
  • Drives two strings of LEDs.
  • Maximum output voltage 40 V.
  • Up to 11 white LEDs in series.
  • Drive current for each string is 200 mA.
  • Fixed 2.15 MHz boost switching frequency.
  • Dithering of boost.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (A8518-Allegro.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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A8501 PWM CONTROL STEP-UP DC-DC CONVERTER AiT Semiconductor
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Other Datasheets by Allegro MicroSystems

Part Number Description
A8518 Fault-Tolerant LED Driver
A8510 High Efficiency Fault Tolerant LED Driver
A8511 4-Channel x 150 mA WLED/RGB Driver
A8514 High Efficiency Fault Tolerant LED Driver
A8515 Fault Tolerant LED Driver

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.

View original datasheet text
A8518 and A8518-1 Wide Input Voltage Range, High-Efficiency, Fault-Tolerant LED Driver FEATURES AND BENEFITS • Automotive AEC-100 qualified • Fully integrated 42 V MOSFET for boost converter • Fully integrated LED current sinks • Withstands surge input to 40 VIN for load dump • Operates down to 3.9 VIN (max) for idle stop • Drives two strings of LEDs • Maximum output voltage 40 V □ Up to 11 white LEDs in series • Drive current for each string is 200 mA • Fixed 2.