the LEDs are always turned off

The MBI5037 can enter in sleep mode and wake up compulsorily by command. It is suitable for LED traffic sign applications while LED panels only need to be turned on occasionally. In the 0-Power mode, the led high bay light can save power automatically when all the output data are 0. It is suitable for LED traffic message sign, which partial of the LEDs are always turned-off. With MBI5037, users can easily design in their LED traffic sign applications with high efficiency, reliability and low cost.

The MBI5037 features compulsory silent open- /short error detection which are necessary in traffic sign applications. The MBI5037 can diagnose the individual LED error of whole LED panel including the dark pixels at very low current (0.1mA) within 700ns detection time and can reach flicker-free performance, ensuring the accuracy of information on LED panels. In addition, the MBI5037 is featured with pre-settable threshold voltage for leakage diagnosis and short-circuit detection to comply with the variation of different LED forward voltage.Numerous companies enter the LED Driver market and further stimulate LED industry development and offer customers diverse choices. On the other side, such development will be a great challenge for new comers to strike a balance between efficiency and customers’ habit.

Of course, the efficiency of voltage boost via the charge pump is lower than that in the other way.No matter in lighting or back lighting applications, the product designer has to face the problem of raising the driver transfer efficiency. To improve the transfer efficiency is not only beneficial for portable products to extend standby time but is also an important means to solve the led flood light dissipation problem. In lighting, the use of the high power LED also underlines the problem of enhancing the transfer efficiency.