ROHM

Step-up (Boost) LED Drivers


BD6586MUV
4-Channel White LED Driver with Integrated FET for up to 24 LEDs
Step-up (Boost) LED Drivers
General Description

BD6586MUV is white LED driver IC with PWM step-up DC/DC converter that can boost max 24V and current driver that can drive max 25mA. The wide and precision brightness can be controlled by external PWM pulse. BD6586MUV 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 accuracy & good matching (±3.0%) current drivers 4ch (MAX.25mA/ch)
  2. 28V power Nch MOSFET
  3. Soft Start
  4. Drive up to 6 in series, 4 strings in parallel
  5. Rich safety functions
    • Over-voltage protection
    • Output Short protection
    • External SBD open detect
    • Over current limit
    • Thermal shutdown
    • UVLO

Key Specifications
 
  • Operating power supply voltage range: 2.7V to 5.5V
  • LED maximum current: 25mA (Max.)
  • Quiescent Current: 0.1μA (Typ.)
  • Switching frequency: 1.0MHz(Typ.)
  • Operating temperature range: -40℃ to +85℃

Applications

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

*ROHM Authorized Distributor
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