Analogictech new low cost WLED driver AAT3193

Analogictech Technology Co., Ltd. (AnalogicTech) recently announced the launch of 2 channel and 3 channel charge pump based on WLED (white light-emitting diode) driver series first chip in AAT3193.

The new series of devices based on a new generation of low-cost mobile phone as the goal, the superior performance of the 2x2-mm package in the very space efficient in providing.

"In India, China, Russia, South America and Africa and other regions there is still a huge, untapped market potential for mobile phone users, mobile phone users need these services, but can only afford the most basic and simple, has simplified the functions of the phone. AnalogicTech product line manager for AdolfoGarcia commented: "designers can use AAT3193 chip designed to meet the needs of these new mobile phone, they can be in the minimum space for low cost TFT-LCD (thin film transistor liquid crystal display) provides the basic function of lighting panel, and requires only 2 external components, namely the 1 charge pump for 1 F capacitor and 1 are used to set the full LED (light emitting diode) individual current resistor. "Although AAT3193 not equipped with flashy without substance or function, but this does not affect its performance. It can drive up to 3 LED, each of the current up to 30mA, so as to achieve low cost, monochromatic and opaque TFT-LCD panel lighting. Another member of the product family is AAT3192, which can drive 2 LED. The current accuracy of the components provided by these two devices is above 10%, and the current matching between channels is above 3%. These new devices based on charge pump can be automatically converted between 1x and 2x mode to achieve maximum efficiency, and the minimum number of external components required.

By using AAT3193, every LED can use the traditional linear PWM (pulse width modulation) technology, single S2Cwire interface can be used AnalogicTech patented. The design of S2Cwire interface can be used to adjust the driving current of each WLED by 16, 8 or 4, up to 30mA.

AAT3193 also has a built-in thermal protection and automatic soft start function.

Price and supply

AAT3193 rated temperature range is -40 to +85 DEG C, the use of lead-free, 10 pin, 2x2-mmSC70JW package is available now, the order quantity is 1000 pieces of each tablet is priced at $0.49.

Source: the world of electronic products