CLOSE
Search for “” keywords, total search results
The MBIA128 is a general purpose Row-Column Sharing Matrix LED Driver with standard SPI programming interface. Each MBIA128 has 12 constant current driving channels, and up to 4 time-multiplexed scans per IC. With Row-Column sharing the driver IC can be setup in parallel configuration to control up to 400 RGB pixels, or 1200 LEDs (5 ICs in parallel, total of 60 channels and 20 scans). MBIA128 is designed for full color backlit application, such as PC gaming devices, consumer and white goods applications.
MBIA128 with internal PWM clock features a 10-bit grayscale control for each LED, which can create color variation of up to 1.07 billion color per LED pixel. With 8-bit (256-step) Individual 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 and internal resistor to simplify application design, while also supports the option to use external resistor for constant current adjustments.
MBIA128 has auto-breathe lighting control built-in to the driver IC. Designers can adjust the timing characteristics of output current to achieve various breathe lighting effects. MBIA128 also features de-ghost function, which eliminates the ghosting effect of LED matrix architecture. The device supports open / short, and pixel short detect, and has dynamic power saving feature that lowers power consumption during device operation.
MBIA128 产品规格
-
ItemsSpec.Content
-
01扫描驱动行列扫
-
02输出通道数12
-
03每通道输出电流值5~40mA
-
04输出管脚耐压7V
-
05输出电流精确度-通道间<±1.5％ (typ.)
-
06输出电流精确度-IC间<±2.5％ (typ.)
-
07内建 MOSFET4
-
08电源电压5V
-
09控制接口标准SPI 15MHz
-
10扫描设计最高20扫
-
11LED矩阵结构最高400 RGB像素
-
12错误侦测-LED开路
-
13错误侦测-LED短路
-
14错误侦测-LED像素短路
-
15电流增益8-bit
-
16智能节电
-
17PWM10-/8-bit
-
18I/O层级3.3V / 5V selectable
-
19鬼影消除
-
20EMI解决方案输出通道延迟、PWM正/反向计数、输出顺态率控制、PWM增强
-
21呼吸灯效
-
22保护功能-过热
-
23保护功能-过电流
-
24RoHS环保封装TSSOP28
QFN28 -
25主要应用电竞键盘、家用设备、IOT装置、MIDI控制器之LED灯效
