sct2004 4-channel high power led driver .current regulated output channels, constant current range: 10  350ma .constant current source invariant to load voltage change .fast output current control, the minimum output enable pulse width = 80ns .excellent output current matching: -channel to channel skew < ∮3% -chip to chip skew < ∮6% .all output current are adjusted through one external resistor .dimming control available .built-in thermal protection function .cmos input interface with schmitt trigger .supply voltage: 5v .package: sop8 with heat sink pad .application: led lighting download datasheet (sct2004v01_03)