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MBI5043 is designed for LED video applications using internal Pulse Width Modulation (PWM) control with selectable 16-bit color depth which features a 16-bit shift register which converts serial input data into each pixel gray scale of output port. The output current can be preset through an external resistor. Moreover, the preset current of MBI5043 can be further programmed to 64 gain steps for LED global brightness adjustment.
With Scrambled-PWM (S-PWM) technology, MBI5043 enhances Pulse Width Modulation by scrambling the “on” time into several “on” periods. The enhancement equivalently increases the visual refresh rate. When building a 16-bit color depth video, S-PWM reduces the flickers and improves the fidelity. MBI5043 offloads the signal timing generation of the host controller which just needs to feed data into drivers. MBI5043 drives the corresponding LEDs to the brightness specified by image data. With MBI5043, all output channels can be built with 16-bit color depth (65,536 gray scales). Each LED’s brightness can be calibrated enough from minimum to maximum brightness with compensated gamma correction or LED deviation information inside the 16-bit image data. For time-multiplexing LED displays, MBI5043 featured pre-charge to eliminate the lower-ghosting effect induced by parasitic capacitance of the board.
MBI5043 Specification
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ItemsSpec.Content
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01No. of Output Channel16
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02Output Current per Channel1~45mA
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03Sustaining Output Voltage17V
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04Excellent Output Current Accuracy-between channels<±1.5% (typ.)
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05Excellent Output Current Accuracy-between ICs<±1.5% (typ.)
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06Error Detection - LED Open
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07Error Detection - LED Short
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08Thermal Protection
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09Current Gain6-bit
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10GCLK Multiplier
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11S-PWM16-bit
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12Lower Ghosting Effect Elimination
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13Dot Correction
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14RoHS Compliant PackageSSOP24
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15Major ApplicationsHigh refresh rate/ High grayscale LED display
