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TEXAS INSTRUMENTS  LM2796TLEV  LM2796, LED DRIVER, DUAL-DISPLAY, EVALUATION BOARD

TEXAS INSTRUMENTS LM2796TLEV
Technical Data Sheet (994.13KB) EN See all Technical Docs

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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

 

Product Information

Core Chip:
LM2796
Device Topology:
Charge Pump
No. of Outputs:
2Outputs
Output Current:
20mA
Output Voltage:
-
Input Voltage Min:
2.7V
Input Voltage Max:
5.5V
Dimming Control Type:
PWM
Kit Contents:
Board, User Guide
Product Range:
-
Input Voltage:
2.7V to 5.5V
SVHC:
No SVHC (15-Jun-2015)

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Applications

  • LED Lighting;
  • Portable Devices

Legislation and Environmental

Product Traceability
RoHS Compliant:
No
Authorized Distributor

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