LM27961 Datasheet - National Semiconductor

LM27961 Dual-Display White

The LM27961 is a charge-pump-based white-LED driver that is ideal for mobile phone display backlighting. It is intended to drive 4 LEDs for a main phone display backlight and 3 LEDs for a sub-display backlight. Regulated internal current sources deliver excellent current and brightness matching in w.

LM27961 Features

* n Drives 4 Individual Common-Anode LEDs with up to 20mA each for a Main Display Backlight n Drives 3 Individual Common-Cathode LEDs with up to 20mA each for a Sub-Display Backlight n Independent Resistor-Programmable Current Setting n Excellent Current and Brightness Matching n High-Efficiency 3/2x

LM27961_NationalSemiconductor.pdf