Datasheet > MBI1804

MBI1804

更新时间： 2024-10-20 21:54:27

品牌	Logo	应用领域
其他 - ETC		驱动器
页数	文件大小	规格书
10页	159K
描述
ALL-WAYS-ON HIGH-POWER LED DRIVER

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中文翻译

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数据手册

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MBI1804 数据手册

MBI1804

Preliminary Datasheet

Macroblock

All-Ways-On^TMHigh-Power LED Driver

Features

4 constant-current output channels

Constant output current invariant to load voltage change

Maximum output constant current: 360 mA

Excellent output current accuracy:

between channels: <±3% (max.), and

CD: SOP8-150-1.27

between ICs: <±6% (max.)

Output current adjusted through an external resistor

Fast response of output current,

Schmitt trigger input

(min.): 10μs

5V supply voltage

Package type: SOP8 with thermal pad

Current Accuracy

Conditions

I_OUT= 40 ~ 240 mA

Between Channels

Between ICs

< ±3%

< ±6%

Product Description

MBI1804 is an instant On/Off LED driver for high power LED applications and exploits PrecisionDrive™ and

All-Ways-On™ technology to enhance its output characteristics. At MBI1804 output stage, four regulated current

ports are designed to provide uniform and constant current sinks for driving LEDs within a large range of V_F

variations.

With All-Ways-On™, MBI1804 provides users easily a consistent current source in their system design. Users may

adjust the output current from 20 mA up to 360 mA through an external resistor, R_ext, which gives users flexibility in

controlling the light intensity of LEDs. In addition, users can precisely adjust LED brightness from 0% to 100% via

output control with Pulse Width Modulation. MBI1804 also guarantees LED can be cascaded to maximum 17V at

the output ports.

Additionally, to ensure the system reliability, MBI1804 is provided in the SOP8 with thermal pad for dramatically

increased power dissipation capability. As a result, a large amount of current can be handled safely in one

package.

ÓMacroblock, Inc. 2004

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

- 1 -

November 2004, V1.00

12 3 4 5 6 7...10

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