LM2796TLEV - 

Evaluation Board, Dual-Display White LED Driver, 3/2x Switched Capacitor Boost, 2 Outputs, LM2796

LM2796TLEV - Evaluation Board, Dual-Display White LED Driver, 3/2x Switched Capacitor Boost, 2 Outputs, LM2796

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Product Overview

The LM2796TLEV is an evaluation board for LM2796, 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.
  • Drives up to 7 LEDs with up to 20mA Each
  • LEDs controlled in two distinct groups, for backlighting two displays (main LCD and sub LCD)
  • Excellent current and brightness matching
  • High efficiency 3/2x charge pump
  • 2.7V to 5.5V extended Li ion input
  • 100Hz to 1kHz PWM brightness control


LED Lighting, Portable Devices

Product Information

Charge Pump
Board, User Guide
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