See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

YZR | 18

Temp:

S (-30 to 85)

ECO Plan:

Green (RoHS & no Sb/Br)

LM2796TL/NOPB


Dual-Display White LED Driver with 3/2x Switched Capacitor Boost

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750 - 999 $ 1.29
1000 - 9999 $ 1.08

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Texas Instruments LM2796TL/NOPB

The LM2796 is a charge-pump based white-LED driver that is ideal for mobile phone display backlighting. It can drive up to 7 LEDs in parallel with up to 20mA through each LED. Regulated internal current sources deliver excellent current and brightness matching in all LEDs. The LED-driver current sources are split into two independently controlled groups. The primary group (4 LEDs) can be used to backlight the main phone display. The second group (3 LEDs) can be used to backlight a secondary display or to provide other lighting features (keypad LEDs, for example). Brightness of the two groups can be adjusted independently with pulse-width 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 high-efficiency 3/2×-gain charge pump.

The LM2796 is available in TI’s chip-scale 18-bump DSBGA package.

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