MBI5029 exploits PrecisionDrive? technology to enhance its output characteristics. Furthermore, MBI5029 uses the idea of Share-I-O? technology to make MBI5029 backward compatible with MBI5026 in both package and electrical characteristics. In addition, besides Normal Mode, MBI5029 provide another mode, Special Mode, to extend its functionality by means of the Share-I-O? technique on pins LE and , without adding any extra pin and without changing the printed circuit board originally designed for conventional LED drivers. In Special Mode two functions are included, Error Detection and Current Gain Control.

MBI5029 contains a 16-channel shift register and a 16-channel putput latch, which convert serial input data into parallel output format. At MBI5029 output stages, sixteen regulated current ports are designed to provide uniform and constant current sinks with small skew between ports for driving LEDs within a wide range of forward voltage (Vf) variations. The excellent output accuracy is within ±3% between channels and within ±6% between ICs. Users may adjust the output current from 5 mA to 90 mA with an external resistor Rext, which gives users flexibility in controlling the light intensity of LEDs. MBI5029 guarantees to endure maximum 17V at the output ports. Besides, the high clock frequency up to 25 MHz also satisfies the system requirements of high volume data transmission.