MBI6901 - Macroblock Presents Step-Down and High Efficiency AC - DC LED Controller for LED Lighting Replacement

25th September 2009
Posted By : ES Admin
MBI6901 - Macroblock Presents Step-Down and High Efficiency AC - DC LED Controller for LED Lighting Replacement
Macroblock introduces a step-down, non-isolated, and high efficiency AC - DC controller, MBI6901, that can deliver constant current to light up high brightness LED and stabilize the LED lighting system. The MBI6901 is able to drive external MOSFET current up to 3A for T-8 CFL replacement, general illumination and power supply for light panel. The MBI6901 accepts universal AC input from 80VAC to 265VAC and regulates the accuracy of preset output current within ±5% by switching the external MOSFET.
Macroblock expects the booming market for LED fluorescent lamp because the power saving of LED fluorescent lamp is 3 times better than traditional fluorescent lamp. The MBI6901 adopts hysteretic PFM control scheme to enhance the efficiency especially at light loading. For example, the efficiency is over 90% when lighting up 6-LEDs @ VAC =110V, 350mA.

Macroblock provides the reference design which has passed the EN55015 standard of the lighting equipment and complied with the UL/CSA/IEC 60950-1 safety standards. Besides, the MBI6901 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. The MBI6901 is now available in MSOP-8L package.

Year 2009 is the opening year for Macroblock to introduce LED drivers in lighting applications ranging from MR16, general lighting, and automotive lighting.


You must be logged in to comment

Write a comment

No comments

Sign up to view our publications

Sign up

Sign up to view our downloads

Sign up

European Microwave Week 2019
29th September 2019
France Porte De Versailles Paris
HETT 2019
1st October 2019
United Kingdom EXCEL, London
World Summit AI 2019
9th October 2019
Netherlands Taets Park, Amsterdam
New Scientist Live 2019
10th October 2019
United Kingdom ExCeL, London
GIANT Health Event 2019
15th October 2019
United Kingdom Chelsea Football Club Stadium, London