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

300
Taiwan
TEL:+886-3-5790068
FAX:+886-3-5797534
URL:
http://www.mblock.com.tw
Microsites Homepage:
http://Macroblock.allitwares.c
om/

Featured Products

1A LED Driver IC MBI6661

 1A LED Driver IC

Brief
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.

Step-Down 1A Dimmable LED Driver MBI6653

 Step-Down 1A Dimmable LED Driver

Brief
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.
Product Categories
Display Product Manufacturing Services
LED Displays
LED Driver ICs (8)
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Macroblock Inc. Logo

Macroblock Inc.

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

Home > LED Driver ICs
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Product Name: LED Driver ICs

Product Number: MBI5040

Brief Description:
MBI5040 is a 16-channel constant current LED driver with selectable 16-/12-bit gray scale control and 8-bit dot correction. MBI5040 provides constant current ranging from 2mA to 60mA for each output channel. The output current can be set by an external resistor. MBI5040 adopts Share-I-O™ technology to be backward compatible with MBI5026 and MBI5030 in package and to extend the functionality, such as in-message error detection, compulsory error detection, thermal protection, and current gain control in LED display systems. With Scrambled-PWM (S-PWM) technology, MBI5040 enhances pulse width modulation by scrambling the “on” time into several “on” periods, so that MBI5040 is able to increase visual refresh rate and reduce flickers. In addition, MBI5040 provides 16-bit gray scale control to enrich the color of image, allowing to present video images with 65,536 gray scales. MBI5040 also provides 8-bit dot correction to individually calibrate the deviated brightness and color of LEDs. Moreover, the preset current of MBI5040 can be further adjusted by 128 steps for LED global brightness adjustment. With in-message error detection, MBI5040 can detect individual LED for both open- and short-circuit errors on-the-fly without extra components. Additionally, to enhance the system reliability, MBI5040 is built with thermal protection functions.

Official Site

  • Key Features:

    16 constant-current output channels

    Constant output current range per channel: 2~60mA @ 5V supply voltage
    2~45mA @ 3.3V supply voltage

    Excellent output current accuracy,
    - Between channels: <±1.5% (typ.);
    - Between ICs: <±3% (typ.)

    Visual effect control
    - Patented S-PWM technology to improve refresh rate
    - 16-bit or 12-bit gray scale control
    - 8-bit dot-correction
    - 7-bit linear programmable output current gain

    Error detection control
    - In-message error detection:
      on-the-fly, data-in error-out
    - Compulsory individual LED open/short-circuit
      detection:
      full panel, data independent
      silent error detection in 700ns
    - Configurable short-circuit detection threshold
      voltage
    - Thermal protection

    Flexible operation modes
    - Auto synchronization mode/manual
      synchronization mode
    - One-shot mode/continuous mode
    - Disable/enable command

    EMI reduction
    - Staggered delay of output, preventing from
      current surge
    - Selectable switching speed of output channels
      (tOR, tOF)

    Maximum gray scale clock frequency: 33MHz

    Schmitt trigger input

    Backward compatible with MBI5026 and MBI5030 in package

  • Key Applications:

    Indoor LED Video Displays

    Full-color LED display

    Message Signs

Official Site

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LED Driver ICs | LED Driver ICs | Macroblock Inc.