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LM27953

White LED Driver

LM27953 Features

* 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

LM27953 General Description

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. The LED driver current sinks c.

LM27953 Datasheet (706.74 KB)

Preview of LM27953 PDF

Datasheet Details

Part number:

LM27953

Manufacturer:

National Semiconductor

File Size:

706.74 KB

Description:

White led driver.
November 2004 www.DataSheet4U.com LM27953 White LED Driver with Four LED Current Sinks and 3/2x Switched Capacitor Boost LM27953 White LED Driver wi.

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TAGS

LM27953 White LED Driver National Semiconductor

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