ILD8150

Overview

80V DC-DC buck LED driver IC with hybrid dimming down to 0.5%

The ILD8150 is a 80V DC-DC converter IC, designed to drive high power LEDs. For applications operating close to safe extra-low voltage (SELV) limits, it provides a high safety voltage margin. The buck LED driver IC is tailored for LEDs in general lighting applications with average currents up to 1.5A using a high-side integrated switch. Several performance and protection features provide ideal fit for professional LED lighting.

Summary of Features

  • Input voltage ranging from 8VDC to 80VDC
  • Up to 1.5A average output current
  • Efficiency values of more than 95%
  • Maximum duty cycle up to 99%
  • Up to 2 MHz switching frequency
  • Soft-start
  • Hybrid dimming input with 250Hz to 20kHz PWM dimming frequency 
  • Analog dimming 100 to 12.5%
  • PWM dimming 12.5 to 0.5% with 3.4kHz flicker-free modulation
  • Dim-to-off
  • Adjustable max. output current via shunt resistor
  • Typical 3% output current accuracy
  • Overtemperature protection
  • Pull-down transistor to avoid LED glowing in dim-to-off
  • DSO-8 package to enable wave soldering

Potential Applications

  • LED driver
  • Tunable white
  • Multichannel lighting
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