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BD6583MUV-A Datasheet

Part NameDescriptionManufacturer
BD6583MUV-A White Backlight LED Driver for Medium to Large LCD Panels (Switching Regulator Type) ROHM
ROHM Semiconductor ROHM
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● Description
BD6583MUV-A is white LED driver IC with PWM step-up DC/DC converter that can boost max 42.5V and current driver that can drive max 25mA. The wide and precision brightness can be controlled by external PWM pulse. BD6583MUV-A has very accurate current drivers, and it has few current errors between each strings. So, it will be helpful to reduce brightness spots on the LCD.Small package type is suited for saving space.

● Features
1) High efficiency PWM step-up DC/DC converter (fsw=1MHz), max efficiency 93%
2) High accuracy & good matching (±3%) current drivers 6ch
3) Drive up to 12* in series, 6 strings in parallel =72 white LEDs (*white LED Vf=3.5Vmax)
4) Wide input voltage range (2.7V ~ 22V)
5) Rich safety functions
  ▪ Over-voltage protection (OVP)
  ▪ Over current limit
  ▪ External SBD open detect
  ▪ Thermal shutdown
6) Small & thin package (VQFN024V4040) 4.0 × 4.0 × 1.0mm

● Applications
All middle size LCD equipments backlight of Notebook PC, portable DVD player, car navigation systems, etc

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