Products, Materials + Tools | May 27, 2009

MSC Introduces New MBI6901 LED Driver for 80 to 265 Volts AC from Macroblock

The MBI6901 is a high efficiency and step-down AC/DC controller which is designed to deliver constant current.

The LED driver accepts universal input from 80 to 265 Volts AC. It is specifically designed with hysteretic PFM control scheme to enlarge the efficiency at light load. 
The MBI6901 regulates the output current within 5 % by controlling an external MOSFET. In addition, LED current dimming can be controlled via output of photo coupler through DIM pin.
The MBI6901 also has multiple features to protect the controller from fault conditions, including under voltage lockout (UVLO) and over voltage protection (OVP). 
Additionally, to ensure the system reliability, the MBI6901 is built with the thermal protection (TP) function. This function secures the IC from higher temperatures than 155°degrees Celsius by turning of the external MOSFET. As soon as the temperature is below 125°C, the external MOSFET will resume to work again.
Main Features:
• Universal AC input from 85VAC to 265VAC
• 90% efficiency@ VAC =110V, 350mA, 6-LEDs
• Setting current accuracy within ±5%
• To drive external MOSFET current up to 1A
• Hysteretic PFM improves efficiency at light loading
• Full protection: Thermal/UVLO/OVP/LED Open-/Short- Circuit
• Available in package: MSOP-8L

For further information please contact MSC Vertriebs GmbH.
MSC Vertriebs GmbH:
Since 1982 MSC Vertriebs GmbH has made a name for itself as one of the leading high-tech distributors of electronic components in Europe. As well as its core distribution business MSC is also able to offer customer specific design as well as production in one of four European production centers. MSC now employs over 800 people. Our key focus is on products that need highly competent technical advice such as micro-controllers and processors, programmable logic, ASICs, displays & equipment, power and linear products, memory components & memory modules, electromechanical components, optoelectronics as well as IT solutions. What makes MSC stand apart from its competitors is not only its highly qualified application and development engineers but its ability to offer design and production services. In addition a very close relationship to the major semiconductor manufacturers results in the best support for the newest technologies for our customers. Find out more about MSC at
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