Description
LD1074 is a 16-channel constant current LED driver with selectable 16-/12-bit gray scale control and 8-bit pixel correction. LD1074 provides constant current ranging from 2mA to 60mA for each output channel. The output current can be set by an external resistor. LD1074 adopts open/short error detection, thermal detection, and external resistor connection and adjusts current gain control for brightness.

FEATUREs
● 16 constant-current output channels
● Constant output current range per channel: 2~60mA ( 2~60mA @ 5V, 2~45mA @ 3.3V )
● Excellent output current accuracy,
   - Between channels: <±1.0% (typ.);
   - Between ICs: <±1.5% (typ.)
● Visual effect control
   - Increased refresh rate
   - selectable gray scale (16bit or 12bit)
   - Individual pixel-correction (256 steps : 8-bit control)
   - Brightness control (7-bit linear programmable output current gain)
● Error detection control
   - Individual LED Open/Short-circuit detection
   - External Resistor Detection (R-EXT pin Open Detection)
   - Thermal protection ( Alarm & Shut-Down)
● EMI reduction
   - Delay between output channels.
   - Fast / Slow output switching Speed
● Maximum gray scale clock frequency: 33MHz

APPLICATION
● Full-color LED display
● VMS (Variable Message Sign)