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產品敘述
BD6586MUV是將最大可升壓至24V的PWM方式DC/DC轉換器和最大可驅動25mA的電流驅動器集於一身的白色LED驅動器。通過外部PWM信號對IC的電源控制接腳或電流驅動器的電源控制接腳進行控制，可實現大範圍、高精確度的亮度控制。採用高精確度電流驅動器，電流驅動器的列間誤差小，適合用來減少顯示器的亮度不均現象。
特性
- High accuracy & good matching (±3.0%) current drivers 4ch (MAX.25mA/ch)
- 28V power Nch MOSFET
- Soft Start
- Drive up to 6 in series, 4 strings in parallel
- Rich safety functions
- Over-voltage protection
- Output Short protection
- External SBD open detect
- Over current limit
- Thermal shutdown
- UVLO
重要規格
- 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℃
應用
All middle size LCD equipments backlight of Notebook PC, portable DVD player, car navigation systems, etc.
*ROHM Authorized Distributor
