LM2796 - Dual-Display White LED Driver

National Semiconductor

Datasheet Details

Part number	LM2796
Manufacturer	National Semiconductor
File Size	172.18 KB
Description	Dual-Display White LED Driver
Datasheet	LM2796_NationalSemiconductor.pdf

The LM2796 is a charge-pump based white-LED driver that is ideal for mobile phone display backlighting.

(keypad LEDs, for example). Brightness of the two groups can be adjusted independently with pulsewidth modulated (PWM) digital signals. The LM2796 works off an extended Li-Ion input voltage range (2.7V to 5.5V). Voltage boost is achieved with a highefficiency 3/2x-gain charge pump. The LM2796 is available in National’s chip-scale 18-bump micro SMD package. Features n Drives up to 7 LEDs with up to 20mA each n LEDs controlled in 2 Distinct Groups, for Backlighting 2 Displays (main LCD and sub-LC.

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Published: Mar 22, 2005 |