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MBI6329 is an advanced 48-channel high power constant current full-array local dimming (FALD) backlighting LED driver for large-mid LCD panel applications. It is designed to support up to 1:8 time-multiplexing and control up to 384 LED dimming zones application using internal Pulse Width Modulation (PWM) control with selectable 14 / 13 / 12-bit color depth and independent current dimming control (of each LED current sink) to improve contrast ratio for HDR applications.
The embedded S-PWM technology easily reduces the flickers and improves the image fidelity when MBI6329 displays.
Both compulsory and real-time LED error open/short detection and protection are included during both start-up and normal operation. Besides, MBI6329 also provides DC/DC feedback control, ghost elimination function, and over-temperature protection features.
MBI6329 产品规格
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ItemsSpec.Content
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01输出通道数48
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02每通道输出电流值4~40mA
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03输出管脚耐压55V
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04输出电流精确度-通道间<±3.0％ (max.)
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05输出电流精确度-IC间<±3.0％ (max.)
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06内建 MOSFET
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07传输界面SPI 、菊链
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08传输方法Burst模式
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09扫描设计最高8扫
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10错误侦测-LED开路
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11错误侦测-LED短路
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12电流增益8-bit
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13调光方式12/13/14-bit PWM
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14动态同步
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15回授控制
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16保护功能-过热
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17RoHS环保封装QFN-64 9X9
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18主要应用屏幕、TV
