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A8502 - High Efficiency Fault Tolerant LED Driver

Description

The A8502 is a multi-output white 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 24 LEDs, 12 LEDs per string, at 120 mA.

Features

  • AEC-Q100 qualified.
  • Wide input voltage range of 5 to 40 V for start/stop, cold crank and load dump requirements.
  • Fully integrated LED current sinks and boost converter with 60 V DMOS.
  • Sync function to synchronize boost converter switching frequency up to 2.3 MHz, allowing operation above the AM band.
  • Excellent input voltage transient response.
  • Single resistor primary OVP minimizes VOUT leakage.
  • Internal secondary OVP for redundant p.

📥 Download Datasheet

Datasheet Details

Part number A8502
Manufacturer Allegro
File Size 5.89 MB
Description High Efficiency Fault Tolerant LED Driver
Datasheet download datasheet A8502 Datasheet

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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.

View original datasheet text
A8502 Wide Input Voltage Range, High Efficiency Fault Tolerant LED Driver FEATURES AND BENEFITS • AEC-Q100 qualified • Wide input voltage range of 5 to 40 V for start/stop, cold crank and load dump requirements • Fully integrated LED current sinks and boost converter with 60 V DMOS • Sync function to synchronize boost converter switching frequency up to 2.3 MHz, allowing operation above the AM band • Excellent input voltage transient response • Single resistor primary OVP minimizes VOUT leakage • Internal secondary OVP for redundant protection • LED current of 120 mA per channel • Drives up to 12 series LEDs in 2 parallel strings • 0.7% to 0.
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