LED1642GW 16-Channel LED Drivers

STMicroelectronics LED1642GW 16-Channel LED Drivers are low voltage, 16-channel drivers designed for LED panel displays. These 40mA drivers guarantee 20V output driving capability, allowing the user to connect several LEDs in series. In the output stage, 16 regulated current sources provide from 3mA to 40mA constant current to drive the LEDs. The current is programmed through an external resistor and can be adjusted by a 7-bit current gain register in two sub-ranges. The brightness can be adjusted separately for each channel through a 12-bit/16-bit grayscale control. The supply voltage range is between 3V and 5.5V.