DESCRIPTION
The EUP2990 regulates the current in each LED string to the programmed value set by an external current setting resistor. The EUP2990 current matching can achieve ±2%. To provide enough headroom for the operating of current sink, boost converter monitors the minimum voltage of feedback pins and regulates an optimized output voltage for power efficiency. The EUP2990 has wide input voltage range from 2.5V to 24V and provides adjustable 5mA to 50mA LED current. It provides cycle-by-cycle over current protection. The device supports PWM and analog brightness dimming functions for accurate LED current control. The EUP2990 integrated multiple protect functions, such as LED open, LED short, output over voltage, over thermal and under voltage lockout, these protections will prevent the LCD backlight from damage. The EUP2990 is available in a 3×3mm TQFN-20L package. FEATURES
2.5V to 24 V Input Voltage 6 Strings in Parallel and Up to 10 WLEDs Per String Integrated 2.5A 43V MOSFET Out...