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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.
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Display Product Manufacturing Services
LED Displays
LED Driver ICs (8)
LED Headlights
LED Lightings
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White LED Driver ICs
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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: Step-Down 1A Dimmable LED Driver

Product Number: MBI6653

Brief Description:
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.

Official Site

  • Key Features:

    The output current of MBI6653 can be programmed by an external resistor and dimmed via pulse width modulation (PWM) through PWMD pin. In addition, a novel fixed frequency analog dimming method is proposed and offered by the device. Users can achieve higher efficiency linear current modulation from 5% to 100% of preset current by applying either PWM-controlled or DC voltage-controlled brightness modulation.

    MBI6653 features completed protection design to handle faulty situations. The start-up function limits the inrush current while the power is switched on. Under voltage lock out (UVLO), over temperature protection (OTP), and over current protection (OCP) guard the system to be robust and keep the driver away from being damaged which results from LED open-circuited, short-circuited and other abnormal events.

    MBI6653 provides thermal-enhanced MSOP-8 and SOP-8 packages as well to handle power dissipation more efficiently.

  • Key Applications:

    -High Power LED Lighting
    -Desk Lamp/ Table LAmp
    -Flat Panel Lighting
    -Projection Lamp

Official Site

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LED Driver ICs | Step-Down 1A Dimmable LED Driver | Macroblock Inc.