LM27953 - White LED Driver

Product Overview

National Semiconductor

Part number	LM27953
Manufacturer	National Semiconductor
File Size	706.74 KB
Description	White LED Driver
Datasheet	LM27953 Datasheet
Additional preview pages of the LM27953 datasheet.

The LM27953 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.

Regulated internal current sources deliver excellent current and brightness matching in all LEDs.

n Drives 4 Individual Common-Anode LEDs with up to 20mA each for a Main Display Backlight n Independent Resistor-Programmable Current Setting n Excellent Current and Brightness Matching n High-Efficiency 3/2x Charge Pump n Extended Li-Ion Input: 2.7V to 5.5V n PWM Brightness Control: 100Hz - 1kHz n 18-bump Thin Micro SMD Package: (2.1mm x 2.4mm x 0.6mm).

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Published: Apr 22, 2010 |