BD8118FM - ROHM

BD8118FM White LED Driver IC

TECHNICAL NOTE For LCD Panel Backlight Applications White LED Driver IC BD8118FM rev. 1.50 ● Outline BD8118FM is a white LED driver featuring a high input voltage range (36V MAX), an integrated step-up DC/DC converter and four constant-current output drivers on a single chip. Brightness can be controlled by either PWM or VDAC methods. ● Features 1) Input.

Features

1) Input voltage range4.5
  – 30 V 2) Integrated step-up DC/DC controller 3) Four integrated LED current driver channels (150 mA max. each channel) 4) Compatible with PWM light-modulation 0.38
  – 99.5%) 5) Built-in protection functions (UVLO, OVP, TSD, OCP) 6) Abnormal status detection function (open) 7) HSOP-M28 package
● Applications Car navigation system backlights, small/medium-sized LCD panels, etc.
● Absolute maximum ratings (Ta = 25 ͠) Parameter Symbol Rating Unit Power supply voltage (Pin 1) VCC 36 V Load switch output voltage (Pin 2) VLOADSW 36 V LED output voltage (Pin.