Datasheet > MBI5031GF

MBI5031GF

更新时间： 2024-10-22 03:50:11

品牌	Logo	应用领域
其他 - ETC		驱动器
页数	文件大小	规格书
20页	527K
描述
16-Channel PWM-Embedded LED Driver

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MBI5031GF 数据手册

MBI5031

16-Channel PWM-Embedded LED Driver

Preliminary Datasheet

Macroblock

Features

Small Outline Package

Backward compatible with MBI5026 in package

16 constant-current output channels

12-bit grayscale PWM control

Scrambled-PWM technology to improve refresh rate

Open-Circuit Detection to detect individual LED errors

8-bit programmable output current gain

Constant output current range:

GF: SOP24-300-1.00

5 ~ 45mA at 3.3V supply voltage

5 ~ 60mA at 5.0V supply voltage

Output current accuracy:

between channels: <±3% (max.), and

between ICs: <±6% (max.)

Staggered output delay

Maximum data clock frequency: 25MHz

Schmitt trigger input

3.0V-5.5V supply voltage

Product Description

MBI5031 is designed for LED video applications using internal Pulse Width Modulation (PWM) control with 12-bit

gray scales. MBI5031 features a 16-bit shift register which converts serial input data into each 12-bit pixel gray scale

of output port. At MBI5031 output port, sixteen regulated current ports are designed to provide uniform and constant

current sinks for driving LEDs with a wide range of Vf variations. The output current can be preset through an

external resistor. Moreover, the preset current of MBI5031 can be further programmed up or down to 128 gain steps

for LED global brightness adjustment.

With Scrambled-PWM (S-PWM^TM) technology, MBI5031 enhances Pulse Width Modulation by scrambling the “on”

time into several “on” periods. The enhancement equivalently increases the visual refresh rate. When building a

12-bit gray scale video, S-PWM™ reduces the flickers and improves the fidelity. MBI5031 offloads the signal timing

generation of the host controller which just needs to feed data into drivers. MBI5031 drives the corresponding LEDs

to the brightness specified by image data. With MBI5031, all output channels can be built with 12-bit color depths

(4,096 gray scales).

Macroblock, Inc. 2006

Floor 6-4, No.18, Pu-Ting Rd., Hsinchu, Taiwan 30077, ROC.

TEL: +886-3-579-0068, FAX: +886-3-579-7534 E-mail: info@mblock.com.tw

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March 2006, V1.00

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