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參數(shù)資料
| 型號(hào)： | MBI1804 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | LED驅(qū)動(dòng)器 |
| 英文描述： | ALL-WAYS-ON HIGH-POWER LED DRIVER |
| 中文描述： | 全途徑高功率LED驅(qū)動(dòng) |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大?。?/td> | 159K |
| 代理商： | MBI1804 |
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Macroblock
Preliminary Datasheet
MBI1804
All-Ways-On
TM
High-Power LED Driver
November 2004, V1.00
Features
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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
between ICs: <
±
6% (max.)
Output current adjusted through an external resistor
Fast response of output current, (min.): 10
μ
s
Schmitt trigger input
5V supply voltage
Package type: SOP8 with thermal pad
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Produc t 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.
Current Accuracy
Between Channels
Between ICs
Conditions
<
±
3%
<
±
6%
I
OUT
= 40 ~ 240 mA
CD: SOP8-150-1.27
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