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ALT80600 - LED Driver

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).

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

Datasheet preview – ALT80600

Datasheet Details

Part number ALT80600
Manufacturer Allegro
File Size 4.87 MB
Description LED Driver
Datasheet download datasheet ALT80600 Datasheet
Additional preview pages of the ALT80600 datasheet.

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Other Datasheets by Allegro
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Full PDF Text Transcription

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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.
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