MBI5353

Macroblock Preliminary Datasheet MBI5353 Features 48-Channel PWM Constant Current LED Driver for 1:32 Time-Multiplexing Applications  3V-5.5V supply voltage  48 constant current output channels  Constant output current range: - 0.5~20mA @ 5V supply voltage - 0.5~10mA @ 3.3V supply voltage  Excellent output current accuracy: Between channels:：<±2.5％(Max.) Between ICs: <±3％(Max.)  Built-in 48K-bit SRAM to support time-multiplexing for 1 ~ 32 scans  Flexible PWM control to improve visual refresh rate, -16/15/14/13 bit grayscale mode with programmable scrambling  Global current gain control: - Gain range: 100%~200%, step increment: 14.4%  128 steps R/G/B/ individual current gain control  Integrating ghost elimination circuit  Premium low grayscale improvement technique  LED failure isolation - LED failure induced cross elimination  LED status monitoring: - LED open detection with programmable threshold levels - LED short detection with progr...