MBI5153

Macroblock Preliminary Datasheet MBI5153 16-Channel PWM Constant Current LED Driver Features for 1:32 Time-Multiplexing Applications  3V-5.5V supply voltage  16 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 16K-bit SRAM to support time-multiplexing for 1 ~ 32 scans  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 detection  Integrating ghost elimination circuit  GCLK multiplier technology  Maximum DCLK frequency: 30MHz Product Description MBI5153 is designed for LED video applications using internal Pulse Width Modulation (PWM) control with selectable 14-bit / 13-bit color depth. MBI5153 features a 16-bit shift register which converts serial input data into each pixel’s gray scale of the output port. Sixteen regulated current ports are designed to provide uniform and constant current sinks for driving LEDs with a wide range of VF variations. The output current can be preset through an external resistor. The innovative architecture with embedded SRAM is designed to support up to 1:32 time-multiplexing applications. Users only need to send the whole frame data once and to store in the embedded SRAM of the LED driver, instead of sending every time when the s...