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LP3933 - Lighting Management

Datasheet Summary

Description

The LP3933 is a complete lighting management system designed for portable wireless applications.

It contains a boost DC/DC converter, 4 white-LED drivers to drive the main LCD panel backlight, 2 white-LED drivers for the sub-LCD panel and two sets of RGB/FLASH LED drivers.

Features

  • 1.
  • 2 High Efficiency Programmable 300 mA Magnetic Boost DC-DC converter.
  • 2 separately controlled PWM RGB LED drivers with programmable color, brightness, turn on/off slopes and blinking patterns.
  • FLASH function with up to 6 outputs, each up to 120 mA.
  • 4 constant current LED drivers with programmable 8-bit adjustment (0 … 25 mA/LED).
  • 2 constant current LED drivers with programmable 8-bit adjustment (0 … 25 mA/LED).
  • Functions software controlled.

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Datasheet preview – LP3933

Datasheet Details

Part number LP3933
Manufacturer Texas Instruments
File Size 345.95 KB
Description Lighting Management
Datasheet download datasheet LP3933 Datasheet
Additional preview pages of the LP3933 datasheet.

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Full PDF Text Transcription

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OBSOLETE LP3933 www.ti.com SNVS257A – MAY 2004 – REVISED MAY 2004 LP3933 Lighting Management System for Six White LEDs and Two RGB or FLASH LEDs Check for Samples: LP3933 FEATURES 1 •2 High Efficiency Programmable 300 mA Magnetic Boost DC-DC converter • 2 separately controlled PWM RGB LED drivers with programmable color, brightness, turn on/off slopes and blinking patterns • FLASH function with up to 6 outputs, each up to 120 mA • 4 constant current LED drivers with programmable 8-bit adjustment (0 … 25 mA/LED) • 2 constant current LED drivers with programmable 8-bit adjustment (0 … 25 mA/LED) • Functions software controlled through SPI interface • Additional LED on/off and dimming hardware control • Programmable low current Standby mode • Low voltage digital interface down to 1.
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