16-Channel PWM Constant Current LED Driver
Macroblock
Preliminary Datasheet
MBI5151
16-Channel PWM Constant Current LED Driver
Features
for 1:8 Time-Multiplex...
Description
Macroblock
Preliminary Datasheet
MBI5151
16-Channel PWM Constant Current LED Driver
Features
for 1:8 Time-Multiplexing Applications
3V-5.5V supply voltage 16 constant current output channels Constant output current range:
- 1~20mA @ 5V supply voltage
- 1~10mA @ 3.3V supply voltage Excellent output current accuracy:
Between channels: <±2.5%(Max.) Between ICs: <±3%(Max.) Built-in 4K-bit SRAM to support time-multiplexing for 1 ~ 8 scans 16-bit /14-bit color depth PWM control to improve visual refresh rate 6 bit current gain, 12.5%~200% LED open detection ( Threshold voltage, 0.3V~0.6V selectable ) Integrating ghost elimination circuit GCLK multiplier technology Maximum DCLK frequency: 30MHz Staggered delay of output to reduce EMI
GF: SOP24L-236-1.00
Product Description
MBI5151 is designed for LED video applications using internal Pulse Width Modulation (PWM) control with selectable 16-bit / 14-bit color depth. MBI5151 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 1:8 time-multiplexing applications. Users only need to send the whole frame data once and to store in the embedded SRAM of the LED driver, in...
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