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ALT80600-1 - LED Driver

Download the ALT80600-1 datasheet PDF. This datasheet also covers the ALT80600 variant, as both devices belong to the same led driver family and are provided as variant models within a single manufacturer datasheet.

General Description

The ALT80600 is a multi-output LED driver for small-size LCD backlighting.

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

The boost converter can drive up to 44 white LEDs, 11 LED per string, at 120 mA (VF = 3.3 V max).

Key Features

  • Automotive AEC-Q100 qualified.
  • Wide input voltage range of 4.5 to 40 V for start/stop, cold crank, and load dump requirements.
  • Fully integrated LED current sinks and boost converter with internal power MOSFET.
  • Operate in Boost or SEPIC mode for flexible output.
  • Drives up to 11 series white LED in 4 parallel strings, at up to 120 mA per string (VF = 3.3 V max).
  • Programmable boost switching frequency or sync externally from 1 to 2.3 MHz for AL.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (ALT80600-Allegro.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Allegro MicroSystems

Part Number Description
ALT80600 LED Driver
ALT80800 Constant-Current 2.0A PWM Dimmable Synchronous Buck LED Driver
ALT80802 Buck-Boost or Buck 2 Amp 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
ALT80600 / ALT80600-1 LED Driver with Pre-Emptive Boost for Ultra-High Dimming Ratio and Low Output Ripple FEATURES AND BENEFITS • Automotive AEC-Q100 qualified • Wide input voltage range of 4.5 to 40 V for start/stop, cold crank, and load dump requirements • Fully integrated LED current sinks and boost converter with internal power MOSFET • Operate in Boost or SEPIC mode for flexible output • Drives up to 11 series white LED in 4 parallel strings, at up to 120 mA per string (VF = 3.3 V max) • Programmable boost switching frequency or sync externally from 1 to 2.3 MHz for ALT80600, 260 to 700 kHz for ALT80600-1 • Clock-Out feature for internal switching frequency • Adjustable boost frequency dithering to reduce EMI • Advanced control allows minimum PWM on-time down to 0.