Diodes AL8400 linear high brightness LED driver controller can be operated directly from 2.2V to 18V

AL8400 linear LED driver controller recently published Diodes company, to high brightness LED current tightly regulated diversified, suitable for lighting, display and instructions on different types of LED system. The current voltage AL8400 down to 200mV, has helped to reduce the operating voltage of the expenditure, open controller output can drive an external transmission type transistor, the current number of LED by 10mA adjusted to at least 1 amperes. Can be operated directly from 2.2V to 18V and can drive N channel MOSFET or NPN bipolar transistors. The LED driver using the external transmission type transistor can optimize power dissipation and maximum driving efficiency. Only need to add a small amount of external components, they can drive some longer, the voltage requirements are much higher than 18V LED. Its low temperature drift, as well as the 3% reference voltage under the 25oC, can also reduce the cost of bill of material. In addition, AL8400 linear controller using the slim type SOT353 package of small area, solutions can provide a low electromagnetic interference