FD9802 is a 16 channel constant current driver IC for LED display. Fengxin used the latest semiconductor and CMOS technology to produce IC for LED display. There are 16-bit shift registers, latches and constant drivers on the FD9802. FD9802 can convert serial-in data into parallel-out data. The output current can be adjusted through an external resistor so as to control the brightness of LED easily.