Axelite published LED drive "AX2002/2003" series

Recently, Taiwan Arthur Wright Technology (AxELite) launched AX2002 (2A) /AX2003 (3A) PWM LED driver.

AX2002/2003 series IC is a non synchronous DC buck converter with pulse width modulation output, which uses feedback resistor to control the current of LED.

AX2002/2003 series feedback voltage is only 0.25V, can significantly reduce the power of the feedback resistor. The input voltage range is 3.6V~23V, the output can be connected in series to 7 LED.

The AX2002/2003 application provides high conversion efficiency and stable working voltage, the system has complete protection functions including flexible start (SS) (SCP), short circuit protection, overtemperature protection and overcurrent protection (OCP) function, the switching frequency is fixed at 330KHz or 500Khz.

It is understood that the SOP-8L lead-free package uses standard AX2002/2003 with few external components can be greatly reduced printed circuit board area, in addition, the series of elements with radiating function can be heat to the printed circuit board, greatly reduce the surface temperature of zero element, is very suitable for LCD TV / screen, flashlight, LED lamp cup device.

Source: LEDinside