Datasheet > LM3533TMX-40/NOPB

LM3533TMX-40/NOPB

更新时间： 2024-11-15 11:08:07

品牌	Logo	应用领域
德州仪器 - TI		手机智能手机
页数	文件大小	规格书
53页	2113K
描述
智能手机的完整照明解决方案 \| YFQ \| 20 \| -40 to 125

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LM3533

Complete Lighting Power Solution for Smartphone Handsets

General Description

Features

The LM3533 is a complete power source for backlight, key-

pad, 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 pro-

vides the bias for the five low-voltage indicator LED current

sinks (LVLED1-LVLED5). All low-voltage current sinks can

have a programmable pattern modulated onto their output

current for a wide variety of blinking patterns.

Drives Two Parallel High-Voltage LED Strings for Display

and Keypad Lighting

●

High-Voltage Strings Capable of up to 40V Output Voltage

and up to 90% Efficiency

Up to 30mA 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

Additional features include a Pulse Width Modulation (PWM)

control input for content adjustable backlight control, and an

Ambient Light Sensor interface (ALS) with an internal 8-bit

ADC to provide automatic current adjustment based upon

ambient light conditions. Both the PWM and ALS inputs can

be used to control any high- or low-voltage current sink.

The LM3533 is fully programmable via an I²C-compatible in-

terface. The device is available in a 20-bump (1.755mm x

2.015mm x 0.6mm) micro SMD and operates over a 2.7V to

5.5V input voltage range and a −40°C to +85°C temperature

range.

PWM Input for Content Adjustable Brightness Control

(CABC)

●

Five Low-Voltage Current Sinks for Indicator LEDs

●

Integrated Charge Pump for Improved Efficiency and VIN

Operating Range

Internal Pattern Generation Engine

●

Fully Configurable LED Grouping and Control

Four Programmable Over-voltage Protection Thresholds

(16V, 24V, 32V, and 40V)

Programmable 500kHz and 1MHz Switching Frequency

27mm²Total Solution Size

●

Applications

Power Source for Smart Phone Illumination

●

Display, Keypad and Indicator Illumination

RGB Indicator Driver

TYPICAL APPLICATION CIRCUIT

30135701

PRODUCTION DATA information is current as of

publication date. Products conform to specifications per

the terms of the Texas Instruments standard warranty.

Production processing does not necessarily include

testing of all parameters.

301357 SNOSC68A

12 3 4 5 6 7...53

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LM3533TMX-40/NOPB 替代型号

型号	品牌	替代类型	描述	数据表
LM3533TME-40/NOPB	TI	类似代替	智能手机的完整照明解决方案 \| YFQ \| 20 \| -40 to 125

与LM3533TMX-40/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LM3533TMX-40A	TI	获取价格	Complete Lighting Power Solution for Smartphone Handsets
LM3533TMX-40A/NOPB	TI	获取价格	Complete lighting solution for smartphone handsets 20-DSBGA -40 to 125
LM3535	NSC	获取价格	Multi-Display LED Driver with Ambient Light Sensing and Dynamic Backlight Control Compatib
LM3535	TI	获取价格	具有环境光感应和动态背光控制兼容性的多显示屏 LED 驱动器
LM3535TME	NSC	获取价格	Multi-Display LED Driver with Ambient Light Sensing and Dynamic Backlight Control Compatib
LM3535TME/NOPB	TI	获取价格	具有环境光感应和动态背光控制兼容性的多显示屏 LED 驱动器 \| YFQ \| 20 \| -
LM3535TME-2ALS	NSC	获取价格	Multi-Display LED Driver with Ambient Light Sensing and Dynamic Backlight Control Compatib
LM3535TMX	NSC	获取价格	Multi-Display LED Driver with Ambient Light Sensing and Dynamic Backlight Control Compatib
LM3535TMX/NOPB	TI	获取价格	具有环境光感应和动态背光控制兼容性的多显示屏 LED 驱动器 \| YFQ \| 20 \| -
LM3535TMX-2ALS	NSC	获取价格	Multi-Display LED Driver with Ambient Light Sensing and Dynamic Backlight Control Compatib

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