Micrel launched MIC2299 integrated boost high brightness LED driver solution

Inc. (MicrEL) launched a portable device for the smallest and most powerful LED driver solution MIC2299. This highly efficient DC to DC converter can guarantee 3.5 safe integrated conversion current, the net output power of up to 7 - 12 watts, and the use of 3mm * 3mm MLF (micro) micro package. MIC2299 mainly for mobile phones, PDA, digital cameras and emergency lights and other equipment, camera flash and flashlight applications, has achieved mass production, starting at $1.7 per thousand pieces.

Micrel power company responsible for the product marketing director Ralph Mourinho. Ernst pointed out: "the Micrel MIC2299 can guarantee the conversion of 3.5 amps solution, the occupied area is only 0.25 square inches for portable equipment to achieve high brightness LED without damaging the precious battery life under the premise of a drive to set up a new standard. In addition, the output voltage of the solution can be as high as 30 volts, which can achieve up to 8 high brightness series LED lighting. "

The MIC2299's powerful high current integrated switch enables the device to deliver at least 1 safe current to the two series WLED (white LED) or transmit the 750 Ma to the 3 series WLED. In this way, the utility model can realize the strong flashlight illumination in the dark environment, or the bright flash effect of the purpose of improving the picture quality under the condition of low illumination. LED brightness can be controlled by applying a voltage or PWM (pulse width modulation) signal on the brightness pin. The integrated circuit operates at a fixed switching frequency of 2 MHz with a maximum efficiency of up to 90%. The MIC2299 solution requires only a miniature low cross section sensor and a small ceramic capacitor, which greatly reduces the footprint and minimizes the cost of the solution. Finally, the solution with the current array architecture to match the battery operation, the input voltage is 2.510 volts.

Source: International Electronic Business