Axelite released AX7701/7702 series LED driver

Recently, Taiwan Arthur Wright (AxELite) launched the AX7701/7702 series LED drive. AX7701/7702 series LED driver is 4 channel LED driver realized by a group of charge pump and a current source, the charge pump is simple, can use 1M/250K frequency to 1/1.5/2 times of automatic modulation provide enough output voltage, and the current source for 4 channel current is similar to that of the LED brightness equal 4 channel. AX7701/7702 series LED driver channel current size can be easily controlled by the external, and thus achieve the purpose of dimming. The input voltage is 2.5~5.5V, and it is also suitable for single lithium battery. It is very suitable for handheld products such as mobile phones, PDA, MP3 player, and LCD backlight and keypad backlight applications. AX7701/7702 Series in addition to provide a stable channel current balance, also has internal short-circuit protection (SCP), overcurrent, overvoltage and over temperature protection, and built-in soft start function, can inhibit the start-up and mode switching instantaneous large current input, and protect the battery life. AX7701/7702 series LED driver using QFN-16L package, can significantly reduce the use of printed circuit board space, reduce the cost of components. At the bottom of the QFN package, it has a heat sink pad, which can reduce the surface temperature of the component to the printed circuit board.

Source: LEDinside