LM3533 Datasheet Complete Lighting-Power

Manufacturer: Texas Instruments

LM3533 complete lighting-power by Texas Instruments - Datasheet Preview

Datasheet Details

Part number	LM3533
Manufacturer	Texas Instruments
File Size	1.76 MB
Description	Complete Lighting-Power
Datasheet	LM3533 Datasheet

General Description

The LM3533 is a complete power source for backlight, keypad, and indicator LEDs in smartphone handsets.

The high-voltage inductive boost converter provides the power for two series LED strings for display backlight and keypad functions (HVLED1 and HVLED2).

The integrated charge pump provides the bias for the five low-voltage indicator LED current sinks (LVLED1 to LVLED5).

Overview

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3533 SNOSC68C – APRIL 2012 – REVISED SEPTEMBER 2015 LM3533 Complete Lighting Power Solution for Smartphone Handsets.

Key Features

1 Drives Two Parallel High-Voltage LED Strings for Display and Keypad Lighting.
High-Voltage Strings Capable of up to 40-V Output Voltage and up to 90% Efficiency.
Up to 30 mA per Current Sink (Both Backlight and Indicator).
14-Bit Equivalent Exponential Dimming With 8-Bit Programmable Backlight Code.
Selectable Analog ALS Input with 128 Programmable Gain-Setting Resistors or PWM ALS Input With Internal Low-Pass Filter.
PWM Input for Content.

More Datasheets from Texas Instruments

Part Number	Description
LM3530	High-Efficiency White-LED Driver
LM3532	High-Efficiency White LED Driver
LM3535	Multi-Display LED Driver
LM3537	8-Channel WLED Driver
LM3538	6-Channel WLED Driver
LM35	Precision Centigrade Temperature Sensor
LM350	3-Amp Adjustable Regulator
LM350-N	3-Amp Adjustable Regulator
LM3500	Synchronous Step-up DC/DC Converter
LM3501	Synchronous Step-up DC/DC Converter