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The MBIA129 is a general-purpose matrix LED driver with a standard SPI interface. Each MBIA129 has 12 constant current driving channels and 8 time-multiplexed scan switches. The driver IC can be set up in cascading configuration to control the extended RGB matrix via addressed data transmission. MBIA129 is designed for full-color backlit applications, such as PC gaming devices, and consumer and white goods applications, and are able to be powered by USB or battery.
MBIA129 with an internal PWM clock features an 8-bit grayscale control for each LED, which can generate a color combination of up to 16.8 million colors per LED pixel. With 8-bit (256-step) group current gain, each group of R/G/B color LED can be controlled separately, giving flexibility for brightness adjustments. The driver IC has embedded MOS switches to simplify application design. The output current can be set to use an external resistor for constant current adjustments.
MBIA129 features the de-ghost function, which eliminates the ghosting effect of LED matrix architecture. The device supports open/short error detections and has a power saving mode that lowers the power consumption of device operation and stand-by.
MBIA129 产品规格
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ItemsSpec.Content
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01扫描驱动传统
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02输出通道数12
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03每通道输出电流值5~45mA
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04输出管脚耐压5.5V
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05输出电流精确度-通道间<±3.0％ (typ.)
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06输出电流精确度-IC间<±6.0％ (typ.)
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07内建 MOSFET8
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08电源电压5V
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09控制接口标准SPI 15MHz
I2C -
10扫描设计最高8扫
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11LED矩阵结构最高32 RGB像素
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12错误侦测-LED开路
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13错误侦测-LED短路
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14错误侦测-LED像素短路
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15电流增益8-bit
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16智能节电
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17PWM8-bit
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18I/O层级1.8V~5V
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19鬼影消除
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20EMI解决方案输出通道延迟、PWM正计数
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21呼吸灯效
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22保护功能-过热
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23保护功能-过电流
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24RoHS环保封装QFN40
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25主要应用电竞键盘、家用设备、IOT装置、MIDI控制器之LED灯效
