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Macroblock Inc.
Floor 6-4, No. 18, Pu-Ting Rd.,

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Featured Products

Step-Down 1A Dimmable LED Driver MBI6653

 Step-Down 1A Dimmable LED Driver

MBI6653 is a step-down constant-current high-brightness LED driver to provide a cost-effective design solution for interior/exterior illumination applications. It is designed to deliver constant current to light up high power LED with only 4 external components. With hysteretic PFM control scheme, MBI6653 eliminates external compensation design and makes the design simple.

1A LED Driver IC MBI6661

 1A LED Driver IC

MBI6661 is a high efficiency, constant current and step-down DC/DC converter. It is designed to deliver constant current to light up high power LED with only 5 external components. By hysteretic PFM control scheme, MBI6661 omits the external compensation design.
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Macroblock Inc.

Business Type: Manufacturer → Manufacturing Equipment
1 Categories , 8 Products Listing.

Home > LED Driver ICs
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Product Name: Driver IC for LED video applications

Product Number: MBI5030

Brief Description:
MBI5030 is designed for LED video applications using internal Pulse Width Modulation (PWM) control with selectable 16-bit or 12-bit gray scales. MBI5030 features a 16-bit shift register which converts serial input data into each pixel gray scale of output port. At MBI5030 output port, sixteen regulated current ports are designed to provide uniform and constant current sinks for driving LEDs with a wide range of Vf variations. The output current can be preset through an external resistor. Moreover, the preset current of MBI5030 can be further programmed up or down to 128 gain steps for LED global brightness adjustment. With Scrambled-PWM (S-PWM) technology, MBI5030 enhances Pulse Width Modulation by scrambling the “on” time into several “on” periods. The enhancement equivalently increases the visual refresh rate. When building a 16-bit gray scale video, S-PWM reduces the flickers and improves the fidelity. MBI5030 offloads the signal timing generation of the host controller which just needs to feed data into drivers. MBI5030 drives the corresponding LEDs to the brightness specified by image data. With MBI5030, all output channels can be built with 16-bit color depths (65,536 gray scales). Each LED’s brightness can be calibrated enough from minimum to maximum brightness with compensated gamma correction or LED deviation information inside the 16-bit image data.

Official Site

  • Key Features:

    Backward compatible with MBI 5026 in package

    16 constant-current output channels

    16-bit/12-bit color depth PWM control

    Scrambled-PWM technology to improve refresh rate

    Compulsory open circuit detection to detect individual LED errors
    Full panel, data independent
    Silent error detection with 0.1mA

    8-bit programmable output current gain

    Over temperature warning

    Constant output current range:
    5 ~ 90mA at 3.3V supply voltage
    3 ~ 70mA at 5.0V supply voltage

    Excellent output current accuracy,
    between channels: < ±1.5% (typ.), and
    between ICs: < ±3% (typ.)

    Staggered delay of output, preventing from current surge

    Schmitt trigger input

    Maximum data clock frequency: 30MHz

    3.0V-5.5V supply voltage

  • Key Applications:

    Outdoor LED Video Displays

    Indoor LED Video Displays

    Message Signs

Official Site

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LED Driver ICs | Driver IC for LED video applications | Macroblock Inc.