MBI5754 (Patented)

16-channel S-PWM Constant Current LED Source Driver for up to 1:64 Time-Multiplexing Applications

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聚积科技共阴极驱动架构获得美国专利
专利编号1: US 11,132,940,B2;
专利编号2: US 11,132,939,B2;
您可以使用Patent Public Search Basic of USPTO 网站得到更完整的专利内容
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MBI5754 is designed for common cathode LED video applications using Pulse Width Modulation (PWM) control with selectable 16/15/14/13 bit color depth. MBI5754 features a shift register that converts serial input data into each pixel’s grayscale of the output port. Sixteen regulated current ports are designed to provide uniform and constant current sources for driving LEDs with a wide range of VF variations. The output current can be preset through an external resistor. MBI5754 is designed to support up to 1:64 time-multiplexing applications with embedded SRAM architecture. The user is only required to send the whole frame data once to be stored in the embedded SRAM of the LED driver, instead of sending data every time when the scan line is changed. This helps to save the data bandwidth and to achieve higher grayscale with low data clock frequency. With scan-type Scrambled-PWM (S-PWM) technology, MBI5754 enhances PWM by scrambling the “on” time of each scan line into several “on” periods and sequentially drives each scan line for the short “on” periods. This enhancement increases the visual refresh rate of scan-type LED displays. In addition, the innovative GCLK multiplier technique doubles the visual refresh rate.

MBI5754 has compulsory error detection to detect individual LEDs for open-circuit errors without extra components. The driver IC is also equipped with a cross elimination circuit that solves the cross phenomenon induced by failure LEDs, as well as solving the LED ghosting effect and reducing high contrast interference to improve image quality.

MBI5754 (Patented) 产品规格

Items

Spec.

Content
01

可支持LED型态

共阴极
02

扫描驱动

传统
03

输出通道数

16
04

每通道输出电流值

1~18mA
05

输出管脚耐压

7V
06

输出电流精确度-通道间

<±1.5％ (typ.)
07

输出电流精确度-IC间

<±1.5％ (typ.)
08

内建 MOSFET
09

扫描设计

最高64扫
10

错误侦测-LED开路
11

错误侦测-LED短路
12

电流增益

6-bit
13

PWM增强
14

GCLK倍频
15

智能节电
16

S-PWM

13/14/15/16-bit
17

鬼影消除
18

高对比度干扰消除
19

白平衡色偏消除
20

IC为单位区块不均消除
21

第一行扫偏暗消除
22

渐层暗线消除
23

LED坏点隔离
24

RoHS环保封装

SSOP24
QFN24
25

主要应用

LED扫描屏

鹰眼方案平台

NO.

Category / Solution

Features
鷹眼150-MBI5754

小间距标准

0.9mm~4mm

Macroblock

驱动芯片

LED驱动芯片

组合方案

终端用户

物联网

Micro-LED

创新技术

资源下载

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MBI5754 (Patented)

16-channel S-PWM Constant Current LED Source Driver for up to 1:64 Time-Multiplexing Applications

MBI5754 (Patented) 产品规格

鹰眼方案平台