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MBI1801 fiches techniques PDF

Macroblock - High Power LED Driver

Numéro de référence MBI1801
Description High Power LED Driver
Fabricant Macroblock 
Logo Macroblock 





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MBI1801 fiche technique
Macroblock
Datasheet
MBI1801
All-Ways-OnTM High-Power LED Driver
Features
Constant output current invariant to supply and load voltage change
Maximum output constant current: 1.2A
Output current adjusted through an external resistor
Built-in thermal protection
5V supply voltage
RoHS-compliant package
Surface Mount Device
GSD: TO-265-5L
Product Description
MBI1801 is an instant On/Off LED driver for high power LED applications and exploits PrecisionDriveand
All-Ways-Ontechnology to enhance its output characteristics. At MBI1801 output stage, one regulated current
port is designed to provide a uniform and constant current sink for driving LEDs within a large range of VF
variations.
With All-Ways-On, MBI1801 easily provides users a consistent current source. Users may adjust the output
current from 50 mA up to 1.2A through an external resistor, Rext, 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 enable ( OE )
with Pulse Width Modulation. MBI1801 also guarantees that LEDs can be cascaded to maximum 17V at the output
port.
Additionally, to ensure the system reliability, MBI1801 is built with Thermal Protection (TP) function. The TP
function protects IC from over temperature (165°C). Also, the TO package enhances the power dissipation. As a
result, a large amount of current can be sunk safely in one package.
Applications
High-flux LED lighting
Macroblock, Inc. 2012
Floor 6-4, No.18, Pu-Ting Rd., Hsinchu, Taiwan 30077, ROC.
TEL: +886-3-579-0068, FAX: +886-3-579-7534 E-mail: [email protected]
- 1 - September 2012, VA.02

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