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MBI1828 8-channel All-Ways-On Constant Current LED Driver


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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. The thermal pad enhances the power dissipation. As a result, a large amount of current can be handled safely in one package.

Product Specifications:
Maximum 50V output sustaining voltage
8 constant-current output channels
Adjustable 5 - 60mA output current per channel through an external resistor
Constant output current invariant to load voltage change
Excellent output current accuracy:
between channels: <±3% (max.), andbetween ICs: <±6% (max.)
Open-circuit detection mode to detect LED errors
Integrated voltage regulator for 8 - 40V supply voltage
Voltage feedback for DC/DC controller
Package Type: “Pb-free & Green” package with thermal pad

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