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Wide Input Voltage, High-Efficiency LED Driver with Eight Current Sinks

A8510

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The A8510 provides a flexible and efficient solution for driving multiple LED strings, featuring eight integrated current sinks, a boost converter, and extensive protection features. Its wide input voltage range (5V-40V) makes it suitable for a variety of applications.

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Top Features

Packaging

  • Integrated 2 MHz capable boost converter with 60 V DMOS switch with OVP protection
  • Sync function to synchronize boost converter switching frequencies up to 2.25 MHz
  • LED current up to 40 mA per LED channel into 8 channels
  • Drives up to 12 series LEDs in 8 parallel strings (Vf = 3.5 V, If = 40 mA), VIN = 8 V, switching frequency of 1 MHz
  • Single EN/PWM pin interface for PWM dimming and enable functions
  • APWM pin for fine-tuning color adjustment and/or maximizing contrast ratio
  • Integrated driver for optional external PMOS input disconnect switch
  • Typical LED accuracy of 0.7% and 0.8% for LED-to-LED matching
  • Internal bias supply for single-supply operation from 5 to 40 V
  • Extensive protection features

The device package is a 26-contact, 4 mm × 4 mm, 0.75 mm nominal overall height QFN, with exposed pad for enhanced thermal dissipation (suffix EC). It is lead (Pb) free, with 100% matte tin leadframe plating.

EC Package Documentation

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