Macroblock unveils dual-channel MBI1802 LED driver

May 11, 2005
Date Announced: 11 May 2005 Targeting at the emerging lighting market of high power LEDs, Macroblock is releasing MBI1802 which is with output current up to 360mA meets today’s wide range of LED lighting applications.Compared with other solutions, MBI1802 provides constant current to high power LEDs so that many unpredicted damages, such as over-current, can be avoided and the expensive high power LEDs are hence protected from being burned out.With PrecisionDrive™ and All-Ways-On™ techniques, MBI1802 provides two constant-current channels and high output current capability. Users may set up the output current up to 360 mA through an external resistor so that MBI802 fits various kinds of LED lighting applications. Also, users can precisely dim LED brightness from 100% to 0% via output enable control with Pulse Width Modulation technique. Alternatively, MBI1802 provides an extra current adjustment capability which delivers a quarter of the output current when enabled. To ensure the system reliability, MBI1802 is built with a temperature sensor and provides a TP (Thermal Protection) function and thermal pad. The temperature sensor can detect the heat status of MBI1802 and the TP function can shut down the current to protect IC when the temperature is over 165°C. Moreover, MBI1802 is packaged with the thermal pad to enhance the heat dissipation through a metal substrate. As a result, MBI1802 can handle a large amount of output current safely in one SOP8 package.Customers may design MBI1802 in their lighting products, such as 1W/2W/6W LED table lamps, 5W flashlights and MR16 lamps.Macroblock, Inc., founded in 1999, has been dedicated itself as an LED driver IC expert for LED display, LCD backlight and LED lighting applications. Macroblock is leading with PrecisionDrive™ LED drivers embedding “Current Adjustment” and “Error Detection” functions for message signs in the traffic applications. To target at high-flux LED lighting applications, Macroblock delivers LED drivers exploiting All-Ways-On™ technique. In addition, LaurenBoost™ LED power converter can meet the blooming energy-saving lighting market.

Ms. Shih Macroblock, Inc. Floor 6-4, No. 18, Pu-Ting Rd., Hsinchu, Taiwan 30077, ROC TEL: +886-3-579-0068 FAX: +886-3-579-7534

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