MBI5155 - Macroblock

MBI5155 16-Channel Low Knee Voltage PWM Constant Current LED Driver

MBI5155 is designed for LED video applications using internal Pulse Width Modulation (PWM) control with selectable 16-bit / 14-bit / 13-bit color depth, and the circuit characteristics is optimized for applications with 4.2V supply voltage. MBI5155 features a 16-bit shift register which converts serial input data into each pixel’s gray scale of the output p.

Features

 3V-4.2V supply voltage
 Design optimization
 16 constant current output channels
 Constant output current range: - 0.5~10mA @ 4.2V supply voltage - 0.5~5mA @ 3.3V supply voltage
 Low knee voltage of output channels VDS=0.3V @ IOUT = 10mA, VDD=4.2V
 Excellent output current accuracy: Between channels:：<±2.5％(Max.) Between ICs: <±3％(Max.)
 Built-in 16K-bit SRAM to support time-multiplexing for 1 ~ 32 scans
 16-bit/14-bit /13-bit color depth PWM control to improve visual refresh rate
 6bit current gain，12.5%~200%
 LED failure isolation -LED failure induced cross elimination
 LED open.