LM3503 Datasheet | National Semiconductor

LM3503 Dual-Display Constant Current LED Driver with Analog Brightness Control August 2006 Dual-Display Constant Current LED Driver with Analog Brightness Control General Description The LM3503 is a white LED driver for lighting applications. For dual display backlighting applications, the LM3503 provides a plete solution. The LM3503 contains two internal white LED current bypass FET (Field Effect Transistor) switches. The white LED current can be adjusted with a DC voltage from a digital to analog converter or RC filtered PWM (pulse-width-modulated) signal at the Cntrl pin. With no external pensation, cycle-by-cycle current limit, output over-voltage protection, input...