MIC284x series white light emitting diode driver

Micrel company (MicrEL, Inc.) days ago released new high efficiency white light emitting diode (WLED) driver products series of products, the mobile phone call time was extended to an astonishing 32%. MIC284x solutions target mobile products of various types, including portable display backlight system, keyboard backlighting, mobile phone camera flash, intelligent mobile phone, portable media player, /MP3 portable navigation devices (GPS) and other portable products, in all these applications, save battery power is very important. MIC284x has now begun to bulk supply, 1000 batches of products, the starting price of $0.33. In addition, users can also log on the website of the Swiss semiconductor company online ordering samples.

MIC284x series is a high efficiency linear white light diode driver product designed to drive 2 to 6 white leds. The chip uses a unique linear drive scheme, eliminating the need for switching components commonly used. This saves up to 62% of the board space. In addition, this high efficiency linear scheme extends battery life by up to 32%, providing more power for the large power screen. MIC284x series of products through proprietary dynamic balance matching (DAM) technology to ensure a consistent display brightness, this technology provides a higher than 1.5% current matching and accuracy. The brightness of the white light diode is controlled by a Ultra Fast PWM or 32 level single line digital interface. The Ultra Fast PWM interface is one of the most common control interface on the current market, the frequency control range, from 200Hz to 500KHz, when the backlight dimming duty cycle is less than 1%. MIC284x series of products using 2mm * 2mm Thin MLF lead-free package, the junction temperature range of -40 10-pin to +125 C.