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MBI1828 fiches techniques PDF

Macroblock - 8-Channel All-Ways-On Constant Current LED Driver

Numéro de référence MBI1828
Description 8-Channel All-Ways-On Constant Current LED Driver
Fabricant Macroblock 
Logo Macroblock 





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MBI1828 fiche technique
Macroblock
Preliminary Datasheet
MBI1828
8-Channel All-Ways-OnTM Constant Current LED Driver
Features
z Maximum 50V output sustaining voltage
z 8 constant-current output channels
z Adjustable 5 - 60mA output current per channel through an external resistor
z Constant output current invariant to load voltage change
z Excellent output current accuracy:
between channels: <±3% (max.), and
between ICs: <±6% (max.)
z Open-circuit detection mode to detect LED errors
z Integrated voltage regulator for 8 - 40V supply voltage
z Voltage feedback for DC/DC controller
z Package Type: “Pb-free & Green” package with thermal pad
Current Accuracy
Between Channels
Between ICs
< ±3%
< ±6%
Conditions
IOUT = 5 ~ 60mA
Thin Shrink SOP
GTS: TSSOP16-173-0.65
Quad Flat No-Lead
GFN: QFN24-4*4-0.5
Product Description
MBI1828 is an instant On/Off LED driver for lighting applications and exploits PrecisionDrive™ technology to
enhance its output characteristics. At MBI1828 output stage, 8 regulated current ports are designed to provide
uniform and constant current sinks for driving LEDs within a large range of VF variations.
MBI1828 provides users 8-channel constant current ports to match LEDs with equal current. Users may adjust the
output current from 5mA to 60mA 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.
Additionally, to ensure the system reliability, MBI1828 is built with thermal pad which enhances the heat dissipation.
Applications
z Automotive lighting
z Channel letter
z Decorative LED lighting
z LCD monitor
©Macroblock, Inc. 2009
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. 2009, V 1.01

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