BD6581GU Description
BD6581GU 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. BD6581GU has very accurate current drivers, and it has few current errors between each strings.
BD6581GU Key Features
- High efficiency PWM step-up DC/DC converter (fsw=1MHz), max efficiency 93%
- High accuracy & good matching ( 1.5%) current drivers 6ch
- Drive up to 12 in series, 6 strings in parallel =72 white LEDs ( white LED Vf=3.5Vmax)
- Rich safety functions Over-voltage protection (OVP) Over current limit External SBD open detect Thermal shutdown Key Spe
- Operating power supply voltage range: 2.7V ~ 22.0V
- Quiescent Current 1: 0.6μA (Typ.) Quiescent Current 2: 4.6μA (Typ.)
- Operating temperature range: -30 ~+85 Package VCSP85H2: W(Typ.) x D(Typ.) x H (Max.) 2.60mm x 2.60mm x 1.00mm [bottom vi